Merge pull request #3666 from bunnei/new-vmm

Implement a new virtual memory manager
This commit is contained in:
bunnei 2020-04-17 16:33:08 -04:00 committed by GitHub
commit b8f5c71f2d
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GPG key ID: 4AEE18F83AFDEB23
96 changed files with 4838 additions and 3544 deletions

2
externals/dynarmic vendored

@ -1 +1 @@
Subproject commit f6ae9e1c3311b747b7b91fd903c62bf40b3b9c88
Subproject commit 57b987c185ae6677861cbf781f08ed1649b0543e

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@ -36,9 +36,9 @@ public:
}
void SetWaveIndex(std::size_t index);
std::vector<s16> DequeueSamples(std::size_t sample_count, Memory::Memory& memory);
std::vector<s16> DequeueSamples(std::size_t sample_count, Core::Memory::Memory& memory);
void UpdateState();
void RefreshBuffer(Memory::Memory& memory);
void RefreshBuffer(Core::Memory::Memory& memory);
private:
bool is_in_use{};
@ -66,13 +66,14 @@ public:
return info;
}
void UpdateState(Memory::Memory& memory);
void UpdateState(Core::Memory::Memory& memory);
private:
EffectOutStatus out_status{};
EffectInStatus info{};
};
AudioRenderer::AudioRenderer(Core::Timing::CoreTiming& core_timing, Memory::Memory& memory_,
AudioRenderer::AudioRenderer(Core::Timing::CoreTiming& core_timing, Core::Memory::Memory& memory_,
AudioRendererParameter params,
std::shared_ptr<Kernel::WritableEvent> buffer_event,
std::size_t instance_number)
@ -208,7 +209,7 @@ void AudioRenderer::VoiceState::SetWaveIndex(std::size_t index) {
}
std::vector<s16> AudioRenderer::VoiceState::DequeueSamples(std::size_t sample_count,
Memory::Memory& memory) {
Core::Memory::Memory& memory) {
if (!IsPlaying()) {
return {};
}
@ -258,7 +259,7 @@ void AudioRenderer::VoiceState::UpdateState() {
is_in_use = info.is_in_use;
}
void AudioRenderer::VoiceState::RefreshBuffer(Memory::Memory& memory) {
void AudioRenderer::VoiceState::RefreshBuffer(Core::Memory::Memory& memory) {
const auto wave_buffer_address = info.wave_buffer[wave_index].buffer_addr;
const auto wave_buffer_size = info.wave_buffer[wave_index].buffer_sz;
std::vector<s16> new_samples(wave_buffer_size / sizeof(s16));
@ -310,7 +311,7 @@ void AudioRenderer::VoiceState::RefreshBuffer(Memory::Memory& memory) {
is_refresh_pending = false;
}
void AudioRenderer::EffectState::UpdateState(Memory::Memory& memory) {
void AudioRenderer::EffectState::UpdateState(Core::Memory::Memory& memory) {
if (info.is_new) {
out_status.state = EffectStatus::New;
} else {

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@ -22,7 +22,7 @@ namespace Kernel {
class WritableEvent;
}
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -221,7 +221,7 @@ static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has wrong size
class AudioRenderer {
public:
AudioRenderer(Core::Timing::CoreTiming& core_timing, Memory::Memory& memory_,
AudioRenderer(Core::Timing::CoreTiming& core_timing, Core::Memory::Memory& memory_,
AudioRendererParameter params,
std::shared_ptr<Kernel::WritableEvent> buffer_event, std::size_t instance_number);
~AudioRenderer();
@ -244,7 +244,7 @@ private:
std::vector<EffectState> effects;
std::unique_ptr<AudioOut> audio_out;
StreamPtr stream;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
} // namespace AudioCore

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@ -155,6 +155,8 @@ add_library(common STATIC
uuid.cpp
uuid.h
vector_math.h
virtual_buffer.cpp
virtual_buffer.h
web_result.h
zstd_compression.cpp
zstd_compression.h

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@ -38,6 +38,13 @@ constexpr bool IsWordAligned(T value) {
return (value & 0b11) == 0;
}
template <typename T>
constexpr bool IsAligned(T value, std::size_t alignment) {
using U = typename std::make_unsigned<T>::type;
const U mask = static_cast<U>(alignment - 1);
return (value & mask) == 0;
}
template <typename T, std::size_t Align = 16>
class AlignmentAllocator {
public:

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@ -55,6 +55,38 @@ __declspec(dllimport) void __stdcall DebugBreak(void);
// Defined in Misc.cpp.
std::string GetLastErrorMsg();
#define DECLARE_ENUM_FLAG_OPERATORS(type) \
constexpr type operator|(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
} \
constexpr type operator&(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
} \
constexpr type& operator|=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
a = static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
return a; \
} \
constexpr type& operator&=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
a = static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
return a; \
} \
constexpr type operator~(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(~static_cast<T>(key)); \
} \
constexpr bool True(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) != 0; \
} \
constexpr bool False(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) == 0; \
}
namespace Common {
constexpr u32 MakeMagic(char a, char b, char c, char d) {

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@ -6,36 +6,20 @@
namespace Common {
PageTable::PageTable(std::size_t page_size_in_bits) : page_size_in_bits{page_size_in_bits} {}
PageTable::PageTable() = default;
PageTable::~PageTable() = default;
void PageTable::Resize(std::size_t address_space_width_in_bits) {
const std::size_t num_page_table_entries = 1ULL
<< (address_space_width_in_bits - page_size_in_bits);
void PageTable::Resize(std::size_t address_space_width_in_bits, std::size_t page_size_in_bits,
bool has_attribute) {
const std::size_t num_page_table_entries{1ULL
<< (address_space_width_in_bits - page_size_in_bits)};
pointers.resize(num_page_table_entries);
attributes.resize(num_page_table_entries);
// The default is a 39-bit address space, which causes an initial 1GB allocation size. If the
// vector size is subsequently decreased (via resize), the vector might not automatically
// actually reallocate/resize its underlying allocation, which wastes up to ~800 MB for
// 36-bit titles. Call shrink_to_fit to reduce capacity to what's actually in use.
pointers.shrink_to_fit();
attributes.shrink_to_fit();
}
BackingPageTable::BackingPageTable(std::size_t page_size_in_bits) : PageTable{page_size_in_bits} {}
BackingPageTable::~BackingPageTable() = default;
void BackingPageTable::Resize(std::size_t address_space_width_in_bits) {
PageTable::Resize(address_space_width_in_bits);
const std::size_t num_page_table_entries = 1ULL
<< (address_space_width_in_bits - page_size_in_bits);
backing_addr.resize(num_page_table_entries);
backing_addr.shrink_to_fit();
if (has_attribute) {
attributes.resize(num_page_table_entries);
}
}
} // namespace Common

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@ -5,9 +5,12 @@
#pragma once
#include <vector>
#include <boost/icl/interval_map.hpp>
#include "common/common_types.h"
#include "common/memory_hook.h"
#include "common/virtual_buffer.h"
namespace Common {
@ -47,7 +50,7 @@ struct SpecialRegion {
* mimics the way a real CPU page table works.
*/
struct PageTable {
explicit PageTable(std::size_t page_size_in_bits);
PageTable();
~PageTable();
/**
@ -56,40 +59,18 @@ struct PageTable {
*
* @param address_space_width_in_bits The address size width in bits.
*/
void Resize(std::size_t address_space_width_in_bits);
void Resize(std::size_t address_space_width_in_bits, std::size_t page_size_in_bits,
bool has_attribute);
/**
* Vector of memory pointers backing each page. An entry can only be non-null if the
* corresponding entry in the `attributes` vector is of type `Memory`.
*/
std::vector<u8*> pointers;
VirtualBuffer<u8*> pointers;
/**
* Contains MMIO handlers that back memory regions whose entries in the `attribute` vector is
* of type `Special`.
*/
boost::icl::interval_map<u64, std::set<SpecialRegion>> special_regions;
VirtualBuffer<u64> backing_addr;
/**
* Vector of fine grained page attributes. If it is set to any value other than `Memory`, then
* the corresponding entry in `pointers` MUST be set to null.
*/
std::vector<PageType> attributes;
const std::size_t page_size_in_bits{};
};
/**
* A more advanced Page Table with the ability to save a backing address when using it
* depends on another MMU.
*/
struct BackingPageTable : PageTable {
explicit BackingPageTable(std::size_t page_size_in_bits);
~BackingPageTable();
void Resize(std::size_t address_space_width_in_bits);
std::vector<u64> backing_addr;
VirtualBuffer<PageType> attributes;
};
} // namespace Common

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@ -12,10 +12,17 @@ template <typename Func>
struct ScopeExitHelper {
explicit ScopeExitHelper(Func&& func) : func(std::move(func)) {}
~ScopeExitHelper() {
if (active) {
func();
}
}
void Cancel() {
active = false;
}
Func func;
bool active{true};
};
template <typename Func>

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@ -0,0 +1,52 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#ifdef _WIN32
#include <windows.h>
#else
#include <stdio.h>
#include <sys/mman.h>
#include <sys/types.h>
#if defined __APPLE__ || defined __FreeBSD__ || defined __OpenBSD__
#include <sys/sysctl.h>
#elif defined __HAIKU__
#include <OS.h>
#else
#include <sys/sysinfo.h>
#endif
#endif
#include "common/assert.h"
#include "common/virtual_buffer.h"
namespace Common {
void* AllocateMemoryPages(std::size_t size) {
#ifdef _WIN32
void* base{VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE)};
#else
void* base{mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0)};
if (base == MAP_FAILED) {
base = nullptr;
}
#endif
ASSERT(base);
return base;
}
void FreeMemoryPages(void* base, std::size_t size) {
if (!base) {
return;
}
#ifdef _WIN32
ASSERT(VirtualFree(base, 0, MEM_RELEASE));
#else
ASSERT(munmap(base, size) == 0);
#endif
}
} // namespace Common

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@ -0,0 +1,58 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_funcs.h"
namespace Common {
void* AllocateMemoryPages(std::size_t size);
void FreeMemoryPages(void* base, std::size_t size);
template <typename T>
class VirtualBuffer final : NonCopyable {
public:
constexpr VirtualBuffer() = default;
explicit VirtualBuffer(std::size_t count) : alloc_size{count * sizeof(T)} {
base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
}
~VirtualBuffer() {
FreeMemoryPages(base_ptr, alloc_size);
}
void resize(std::size_t count) {
FreeMemoryPages(base_ptr, alloc_size);
alloc_size = count * sizeof(T);
base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
}
constexpr const T& operator[](std::size_t index) const {
return base_ptr[index];
}
constexpr T& operator[](std::size_t index) {
return base_ptr[index];
}
constexpr T* data() {
return base_ptr;
}
constexpr const T* data() const {
return base_ptr;
}
constexpr std::size_t size() const {
return alloc_size / sizeof(T);
}
private:
std::size_t alloc_size{};
T* base_ptr{};
};
} // namespace Common

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@ -35,6 +35,8 @@ add_library(core STATIC
crypto/ctr_encryption_layer.h
crypto/xts_encryption_layer.cpp
crypto/xts_encryption_layer.h
device_memory.cpp
device_memory.h
file_sys/bis_factory.cpp
file_sys/bis_factory.h
file_sys/card_image.cpp
@ -152,6 +154,23 @@ add_library(core STATIC
hle/kernel/hle_ipc.h
hle/kernel/kernel.cpp
hle/kernel/kernel.h
hle/kernel/memory/address_space_info.cpp
hle/kernel/memory/address_space_info.h
hle/kernel/memory/memory_block.h
hle/kernel/memory/memory_block_manager.cpp
hle/kernel/memory/memory_block_manager.h
hle/kernel/memory/memory_layout.h
hle/kernel/memory/memory_manager.cpp
hle/kernel/memory/memory_manager.h
hle/kernel/memory/memory_types.h
hle/kernel/memory/page_linked_list.h
hle/kernel/memory/page_heap.cpp
hle/kernel/memory/page_heap.h
hle/kernel/memory/page_table.cpp
hle/kernel/memory/page_table.h
hle/kernel/memory/slab_heap.h
hle/kernel/memory/system_control.cpp
hle/kernel/memory/system_control.h
hle/kernel/mutex.cpp
hle/kernel/mutex.h
hle/kernel/object.cpp
@ -178,6 +197,7 @@ add_library(core STATIC
hle/kernel/shared_memory.h
hle/kernel/svc.cpp
hle/kernel/svc.h
hle/kernel/svc_types.h
hle/kernel/svc_wrap.h
hle/kernel/synchronization_object.cpp
hle/kernel/synchronization_object.h
@ -189,8 +209,6 @@ add_library(core STATIC
hle/kernel/time_manager.h
hle/kernel/transfer_memory.cpp
hle/kernel/transfer_memory.h
hle/kernel/vm_manager.cpp
hle/kernel/vm_manager.h
hle/kernel/writable_event.cpp
hle/kernel/writable_event.h
hle/lock.cpp

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@ -60,7 +60,7 @@ static_assert(sizeof(ELFSymbol) == 0x18, "ELFSymbol has incorrect size.");
using Symbols = std::vector<std::pair<ELFSymbol, std::string>>;
Symbols GetSymbols(VAddr text_offset, Memory::Memory& memory) {
Symbols GetSymbols(VAddr text_offset, Core::Memory::Memory& memory) {
const auto mod_offset = text_offset + memory.Read32(text_offset + 4);
if (mod_offset < text_offset || (mod_offset & 0b11) != 0 ||

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@ -26,28 +26,28 @@ public:
virtual ~ARM_Interface() = default;
struct ThreadContext32 {
std::array<u32, 16> cpu_registers;
u32 cpsr;
std::array<u8, 4> padding;
std::array<u64, 32> fprs;
u32 fpscr;
u32 fpexc;
u32 tpidr;
std::array<u32, 16> cpu_registers{};
u32 cpsr{};
std::array<u8, 4> padding{};
std::array<u64, 32> fprs{};
u32 fpscr{};
u32 fpexc{};
u32 tpidr{};
};
// Internally within the kernel, it expects the AArch32 version of the
// thread context to be 344 bytes in size.
static_assert(sizeof(ThreadContext32) == 0x158);
struct ThreadContext64 {
std::array<u64, 31> cpu_registers;
u64 sp;
u64 pc;
u32 pstate;
std::array<u8, 4> padding;
std::array<u128, 32> vector_registers;
u32 fpcr;
u32 fpsr;
u64 tpidr;
std::array<u64, 31> cpu_registers{};
u64 sp{};
u64 pc{};
u32 pstate{};
std::array<u8, 4> padding{};
std::array<u128, 32> vector_registers{};
u32 fpcr{};
u32 fpsr{};
u64 tpidr{};
};
// Internally within the kernel, it expects the AArch64 version of the
// thread context to be 800 bytes in size.

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@ -67,7 +67,7 @@ public:
}
void CallSVC(u32 swi) override {
Kernel::CallSVC(parent.system, swi);
Kernel::Svc::Call(parent.system, swi);
}
void AddTicks(u64 ticks) override {

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@ -15,7 +15,7 @@
#include "core/arm/arm_interface.h"
#include "core/arm/exclusive_monitor.h"
namespace Memory {
namespace Core::Memory {
class Memory;
}

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@ -8,6 +8,7 @@
#include <dynarmic/A64/config.h>
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/page_table.h"
#include "core/arm/dynarmic/arm_dynarmic_64.h"
#include "core/core.h"
#include "core/core_manager.h"
@ -18,7 +19,6 @@
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/svc.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
namespace Core {
@ -103,7 +103,7 @@ public:
}
void CallSVC(u32 swi) override {
Kernel::CallSVC(parent.system, swi);
Kernel::Svc::Call(parent.system, swi);
}
void AddTicks(u64 ticks) override {
@ -159,6 +159,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable&
// Unpredictable instructions
config.define_unpredictable_behaviour = true;
config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
config.only_detect_misalignment_via_page_table_on_page_boundary = true;
return std::make_shared<Dynarmic::A64::Jit>(config);
}

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@ -15,7 +15,7 @@
#include "core/arm/exclusive_monitor.h"
#include "core/arm/unicorn/arm_unicorn.h"
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -92,7 +92,7 @@ public:
private:
friend class ARM_Dynarmic_64;
Dynarmic::A64::ExclusiveMonitor monitor;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
} // namespace Core

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@ -8,7 +8,7 @@
#include "common/common_types.h"
namespace Memory {
namespace Core::Memory {
class Memory;
}

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@ -266,7 +266,7 @@ void ARM_Unicorn::InterruptHook(uc_engine* uc, u32 int_no, void* user_data) {
switch (ec) {
case 0x15: // SVC
Kernel::CallSVC(arm_instance->system, iss);
Kernel::Svc::Call(arm_instance->system, iss);
break;
}
}

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@ -14,6 +14,7 @@
#include "core/core_manager.h"
#include "core/core_timing.h"
#include "core/cpu_manager.h"
#include "core/device_memory.h"
#include "core/file_sys/bis_factory.h"
#include "core/file_sys/card_image.h"
#include "core/file_sys/mode.h"
@ -140,6 +141,8 @@ struct System::Impl {
ResultStatus Init(System& system, Frontend::EmuWindow& emu_window) {
LOG_DEBUG(HW_Memory, "initialized OK");
device_memory = std::make_unique<Core::DeviceMemory>(system);
core_timing.Initialize();
kernel.Initialize();
cpu_manager.Initialize();
@ -276,6 +279,7 @@ struct System::Impl {
telemetry_session.reset();
perf_stats.reset();
gpu_core.reset();
device_memory.reset();
// Close all CPU/threading state
cpu_manager.Shutdown();
@ -346,7 +350,8 @@ struct System::Impl {
std::unique_ptr<Loader::AppLoader> app_loader;
std::unique_ptr<Tegra::GPU> gpu_core;
std::unique_ptr<Hardware::InterruptManager> interrupt_manager;
Memory::Memory memory;
std::unique_ptr<Core::DeviceMemory> device_memory;
Core::Memory::Memory memory;
CpuManager cpu_manager;
bool is_powered_on = false;
bool exit_lock = false;
@ -472,6 +477,14 @@ Kernel::Process* System::CurrentProcess() {
return impl->kernel.CurrentProcess();
}
Core::DeviceMemory& System::DeviceMemory() {
return *impl->device_memory;
}
const Core::DeviceMemory& System::DeviceMemory() const {
return *impl->device_memory;
}
const Kernel::Process* System::CurrentProcess() const {
return impl->kernel.CurrentProcess();
}
@ -505,7 +518,7 @@ Memory::Memory& System::Memory() {
return impl->memory;
}
const Memory::Memory& System::Memory() const {
const Core::Memory::Memory& System::Memory() const {
return impl->memory;
}

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@ -36,9 +36,10 @@ class AppLoader;
enum class ResultStatus : u16;
} // namespace Loader
namespace Memory {
namespace Core::Memory {
struct CheatEntry;
} // namespace Memory
class Memory;
} // namespace Core::Memory
namespace Service {
@ -86,14 +87,11 @@ namespace Core::Hardware {
class InterruptManager;
}
namespace Memory {
class Memory;
}
namespace Core {
class ARM_Interface;
class CoreManager;
class DeviceMemory;
class ExclusiveMonitor;
class FrameLimiter;
class PerfStats;
@ -230,10 +228,10 @@ public:
const ExclusiveMonitor& Monitor() const;
/// Gets a mutable reference to the system memory instance.
Memory::Memory& Memory();
Core::Memory::Memory& Memory();
/// Gets a constant reference to the system memory instance.
const Memory::Memory& Memory() const;
const Core::Memory::Memory& Memory() const;
/// Gets a mutable reference to the GPU interface
Tegra::GPU& GPU();
@ -259,6 +257,12 @@ public:
/// Gets the global scheduler
const Kernel::GlobalScheduler& GlobalScheduler() const;
/// Gets the manager for the guest device memory
Core::DeviceMemory& DeviceMemory();
/// Gets the manager for the guest device memory
const Core::DeviceMemory& DeviceMemory() const;
/// Provides a pointer to the current process
Kernel::Process* CurrentProcess();

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@ -22,7 +22,7 @@ namespace Core::Timing {
class CoreTiming;
}
namespace Memory {
namespace Core::Memory {
class Memory;
}

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@ -0,0 +1,15 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/core.h"
#include "core/device_memory.h"
#include "core/memory.h"
namespace Core {
DeviceMemory::DeviceMemory(System& system) : buffer{DramMemoryMap::Size}, system{system} {}
DeviceMemory::~DeviceMemory() = default;
} // namespace Core

51
src/core/device_memory.h Normal file
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@ -0,0 +1,51 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/virtual_buffer.h"
namespace Core {
class System;
namespace DramMemoryMap {
enum : u64 {
Base = 0x80000000ULL,
Size = 0x100000000ULL,
End = Base + Size,
KernelReserveBase = Base + 0x60000,
SlabHeapBase = KernelReserveBase + 0x85000,
SlapHeapSize = 0xa21000,
SlabHeapEnd = SlabHeapBase + SlapHeapSize,
};
}; // namespace DramMemoryMap
class DeviceMemory : NonCopyable {
public:
explicit DeviceMemory(Core::System& system);
~DeviceMemory();
template <typename T>
PAddr GetPhysicalAddr(const T* ptr) const {
return (reinterpret_cast<uintptr_t>(ptr) - reinterpret_cast<uintptr_t>(buffer.data())) +
DramMemoryMap::Base;
}
u8* GetPointer(PAddr addr) {
return buffer.data() + (addr - DramMemoryMap::Base);
}
const u8* GetPointer(PAddr addr) const {
return buffer.data() + (addr - DramMemoryMap::Base);
}
private:
Common::VirtualBuffer<u8> buffer;
Core::System& system;
};
} // namespace Core

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@ -249,7 +249,7 @@ bool PatchManager::HasNSOPatch(const std::array<u8, 32>& build_id_) const {
}
namespace {
std::optional<std::vector<Memory::CheatEntry>> ReadCheatFileFromFolder(
std::optional<std::vector<Core::Memory::CheatEntry>> ReadCheatFileFromFolder(
const Core::System& system, u64 title_id, const std::array<u8, 0x20>& build_id_,
const VirtualDir& base_path, bool upper) {
const auto build_id_raw = Common::HexToString(build_id_, upper);
@ -269,14 +269,14 @@ std::optional<std::vector<Memory::CheatEntry>> ReadCheatFileFromFolder(
return std::nullopt;
}
Memory::TextCheatParser parser;
Core::Memory::TextCheatParser parser;
return parser.Parse(
system, std::string_view(reinterpret_cast<const char* const>(data.data()), data.size()));
}
} // Anonymous namespace
std::vector<Memory::CheatEntry> PatchManager::CreateCheatList(
std::vector<Core::Memory::CheatEntry> PatchManager::CreateCheatList(
const Core::System& system, const std::array<u8, 32>& build_id_) const {
const auto load_dir = system.GetFileSystemController().GetModificationLoadRoot(title_id);
if (load_dir == nullptr) {
@ -289,7 +289,7 @@ std::vector<Memory::CheatEntry> PatchManager::CreateCheatList(
std::sort(patch_dirs.begin(), patch_dirs.end(),
[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
std::vector<Memory::CheatEntry> out;
std::vector<Core::Memory::CheatEntry> out;
for (const auto& subdir : patch_dirs) {
if (std::find(disabled.cbegin(), disabled.cend(), subdir->GetName()) != disabled.cend()) {
continue;

View file

@ -51,8 +51,8 @@ public:
bool HasNSOPatch(const std::array<u8, 0x20>& build_id) const;
// Creates a CheatList object with all
std::vector<Memory::CheatEntry> CreateCheatList(const Core::System& system,
const std::array<u8, 0x20>& build_id) const;
std::vector<Core::Memory::CheatEntry> CreateCheatList(
const Core::System& system, const std::array<u8, 0x20>& build_id) const;
// Currently tracked RomFS patches:
// - Game Updates

View file

@ -37,9 +37,9 @@
#include "core/core.h"
#include "core/core_manager.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/loader.h"
#include "core/memory.h"
@ -643,7 +643,7 @@ static void HandleQuery() {
SendReply(target_xml);
} else if (strncmp(query, "Offsets", strlen("Offsets")) == 0) {
const VAddr base_address =
Core::System::GetInstance().CurrentProcess()->VMManager().GetCodeRegionBaseAddress();
Core::System::GetInstance().CurrentProcess()->PageTable().GetCodeRegionStart();
std::string buffer = fmt::format("TextSeg={:0x}", base_address);
SendReply(buffer.c_str());
} else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {

View file

@ -47,7 +47,8 @@ ResultVal<std::shared_ptr<ClientSession>> ClientSession::Create(KernelCore& kern
return MakeResult(std::move(client_session));
}
ResultCode ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory) {
ResultCode ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread,
Core::Memory::Memory& memory) {
// Keep ServerSession alive until we're done working with it.
if (!parent->Server()) {
return ERR_SESSION_CLOSED_BY_REMOTE;

View file

@ -12,7 +12,7 @@
union ResultCode;
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -42,7 +42,7 @@ public:
return HANDLE_TYPE;
}
ResultCode SendSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory);
ResultCode SendSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory);
bool ShouldWait(const Thread* thread) const override;

View file

@ -14,6 +14,7 @@ constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED{ErrorModule::Kernel, 7};
constexpr ResultCode ERR_INVALID_CAPABILITY_DESCRIPTOR{ErrorModule::Kernel, 14};
constexpr ResultCode ERR_INVALID_SIZE{ErrorModule::Kernel, 101};
constexpr ResultCode ERR_INVALID_ADDRESS{ErrorModule::Kernel, 102};
constexpr ResultCode ERR_OUT_OF_RESOURCES{ErrorModule::Kernel, 103};
constexpr ResultCode ERR_OUT_OF_MEMORY{ErrorModule::Kernel, 104};
constexpr ResultCode ERR_HANDLE_TABLE_FULL{ErrorModule::Kernel, 105};
constexpr ResultCode ERR_INVALID_ADDRESS_STATE{ErrorModule::Kernel, 106};

View file

@ -18,15 +18,20 @@
#include "core/core.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/device_memory.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/memory_layout.h"
#include "core/hle/kernel/memory/memory_manager.h"
#include "core/hle/kernel/memory/slab_heap.h"
#include "core/hle/kernel/physical_core.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/synchronization.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/time_manager.h"
@ -110,6 +115,7 @@ struct KernelCore::Impl {
InitializePhysicalCores();
InitializeSystemResourceLimit(kernel);
InitializeMemoryLayout();
InitializeThreads();
InitializePreemption();
}
@ -154,12 +160,17 @@ struct KernelCore::Impl {
system_resource_limit = ResourceLimit::Create(kernel);
// If setting the default system values fails, then something seriously wrong has occurred.
ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x200000000)
ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x100000000)
.IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(ResourceType::Threads, 800).IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(ResourceType::Events, 700).IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(ResourceType::TransferMemory, 200).IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(ResourceType::Sessions, 900).IsSuccess());
if (!system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0) ||
!system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0x60000)) {
UNREACHABLE();
}
}
void InitializeThreads() {
@ -237,6 +248,57 @@ struct KernelCore::Impl {
return result;
}
void InitializeMemoryLayout() {
// Initialize memory layout
constexpr Memory::MemoryLayout layout{Memory::MemoryLayout::GetDefaultLayout()};
constexpr std::size_t hid_size{0x40000};
constexpr std::size_t font_size{0x1100000};
constexpr std::size_t irs_size{0x8000};
constexpr std::size_t time_size{0x1000};
constexpr PAddr hid_addr{layout.System().StartAddress()};
constexpr PAddr font_pa{layout.System().StartAddress() + hid_size};
constexpr PAddr irs_addr{layout.System().StartAddress() + hid_size + font_size};
constexpr PAddr time_addr{layout.System().StartAddress() + hid_size + font_size + irs_size};
// Initialize memory manager
memory_manager = std::make_unique<Memory::MemoryManager>();
memory_manager->InitializeManager(Memory::MemoryManager::Pool::Application,
layout.Application().StartAddress(),
layout.Application().EndAddress());
memory_manager->InitializeManager(Memory::MemoryManager::Pool::Applet,
layout.Applet().StartAddress(),
layout.Applet().EndAddress());
memory_manager->InitializeManager(Memory::MemoryManager::Pool::System,
layout.System().StartAddress(),
layout.System().EndAddress());
hid_shared_mem = Kernel::SharedMemory::Create(
system.Kernel(), system.DeviceMemory(), nullptr,
{hid_addr, hid_size / Memory::PageSize}, Memory::MemoryPermission::None,
Memory::MemoryPermission::Read, hid_addr, hid_size, "HID:SharedMemory");
font_shared_mem = Kernel::SharedMemory::Create(
system.Kernel(), system.DeviceMemory(), nullptr,
{font_pa, font_size / Memory::PageSize}, Memory::MemoryPermission::None,
Memory::MemoryPermission::Read, font_pa, font_size, "Font:SharedMemory");
irs_shared_mem = Kernel::SharedMemory::Create(
system.Kernel(), system.DeviceMemory(), nullptr,
{irs_addr, irs_size / Memory::PageSize}, Memory::MemoryPermission::None,
Memory::MemoryPermission::Read, irs_addr, irs_size, "IRS:SharedMemory");
time_shared_mem = Kernel::SharedMemory::Create(
system.Kernel(), system.DeviceMemory(), nullptr,
{time_addr, time_size / Memory::PageSize}, Memory::MemoryPermission::None,
Memory::MemoryPermission::Read, time_addr, time_size, "Time:SharedMemory");
// Allocate slab heaps
user_slab_heap_pages = std::make_unique<Memory::SlabHeap<Memory::Page>>();
// Initialize slab heaps
constexpr u64 user_slab_heap_size{0x3de000};
user_slab_heap_pages->Initialize(
system.DeviceMemory().GetPointer(Core::DramMemoryMap::SlabHeapBase),
user_slab_heap_size);
}
std::atomic<u32> next_object_id{0};
std::atomic<u64> next_kernel_process_id{Process::InitialKIPIDMin};
std::atomic<u64> next_user_process_id{Process::ProcessIDMin};
@ -271,6 +333,16 @@ struct KernelCore::Impl {
std::bitset<Core::Hardware::NUM_CPU_CORES> registered_core_threads;
std::mutex register_thread_mutex;
// Kernel memory management
std::unique_ptr<Memory::MemoryManager> memory_manager;
std::unique_ptr<Memory::SlabHeap<Memory::Page>> user_slab_heap_pages;
// Shared memory for services
std::shared_ptr<Kernel::SharedMemory> hid_shared_mem;
std::shared_ptr<Kernel::SharedMemory> font_shared_mem;
std::shared_ptr<Kernel::SharedMemory> irs_shared_mem;
std::shared_ptr<Kernel::SharedMemory> time_shared_mem;
// System context
Core::System& system;
};
@ -437,4 +509,52 @@ Core::EmuThreadHandle KernelCore::GetCurrentEmuThreadID() const {
return impl->GetCurrentEmuThreadID();
}
Memory::MemoryManager& KernelCore::MemoryManager() {
return *impl->memory_manager;
}
const Memory::MemoryManager& KernelCore::MemoryManager() const {
return *impl->memory_manager;
}
Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() {
return *impl->user_slab_heap_pages;
}
const Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() const {
return *impl->user_slab_heap_pages;
}
Kernel::SharedMemory& KernelCore::GetHidSharedMem() {
return *impl->hid_shared_mem;
}
const Kernel::SharedMemory& KernelCore::GetHidSharedMem() const {
return *impl->hid_shared_mem;
}
Kernel::SharedMemory& KernelCore::GetFontSharedMem() {
return *impl->font_shared_mem;
}
const Kernel::SharedMemory& KernelCore::GetFontSharedMem() const {
return *impl->font_shared_mem;
}
Kernel::SharedMemory& KernelCore::GetIrsSharedMem() {
return *impl->irs_shared_mem;
}
const Kernel::SharedMemory& KernelCore::GetIrsSharedMem() const {
return *impl->irs_shared_mem;
}
Kernel::SharedMemory& KernelCore::GetTimeSharedMem() {
return *impl->time_shared_mem;
}
const Kernel::SharedMemory& KernelCore::GetTimeSharedMem() const {
return *impl->time_shared_mem;
}
} // namespace Kernel

View file

@ -8,6 +8,7 @@
#include <string>
#include <unordered_map>
#include <vector>
#include "core/hle/kernel/memory/memory_types.h"
#include "core/hle/kernel/object.h"
namespace Core {
@ -23,6 +24,12 @@ struct EventType;
namespace Kernel {
namespace Memory {
class MemoryManager;
template <typename T>
class SlabHeap;
} // namespace Memory
class AddressArbiter;
class ClientPort;
class GlobalScheduler;
@ -31,6 +38,7 @@ class PhysicalCore;
class Process;
class ResourceLimit;
class Scheduler;
class SharedMemory;
class Synchronization;
class Thread;
class TimeManager;
@ -147,6 +155,42 @@ public:
/// Register the current thread as a non CPU core thread.
void RegisterHostThread();
/// Gets the virtual memory manager for the kernel.
Memory::MemoryManager& MemoryManager();
/// Gets the virtual memory manager for the kernel.
const Memory::MemoryManager& MemoryManager() const;
/// Gets the slab heap allocated for user space pages.
Memory::SlabHeap<Memory::Page>& GetUserSlabHeapPages();
/// Gets the slab heap allocated for user space pages.
const Memory::SlabHeap<Memory::Page>& GetUserSlabHeapPages() const;
/// Gets the shared memory object for HID services.
Kernel::SharedMemory& GetHidSharedMem();
/// Gets the shared memory object for HID services.
const Kernel::SharedMemory& GetHidSharedMem() const;
/// Gets the shared memory object for font services.
Kernel::SharedMemory& GetFontSharedMem();
/// Gets the shared memory object for font services.
const Kernel::SharedMemory& GetFontSharedMem() const;
/// Gets the shared memory object for IRS services.
Kernel::SharedMemory& GetIrsSharedMem();
/// Gets the shared memory object for IRS services.
const Kernel::SharedMemory& GetIrsSharedMem() const;
/// Gets the shared memory object for Time services.
Kernel::SharedMemory& GetTimeSharedMem();
/// Gets the shared memory object for Time services.
const Kernel::SharedMemory& GetTimeSharedMem() const;
private:
friend class Object;
friend class Process;

View file

@ -0,0 +1,118 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#include <array>
#include "common/assert.h"
#include "core/hle/kernel/memory/address_space_info.h"
namespace Kernel::Memory {
namespace {
enum : u64 {
Size_1_MB = 0x100000,
Size_2_MB = 2 * Size_1_MB,
Size_128_MB = 128 * Size_1_MB,
Size_1_GB = 0x40000000,
Size_2_GB = 2 * Size_1_GB,
Size_4_GB = 4 * Size_1_GB,
Size_6_GB = 6 * Size_1_GB,
Size_64_GB = 64 * Size_1_GB,
Size_512_GB = 512 * Size_1_GB,
Invalid = std::numeric_limits<u64>::max(),
};
// clang-format off
constexpr std::array<AddressSpaceInfo, 13> AddressSpaceInfos{{
{ 32 /*bit_width*/, Size_2_MB /*addr*/, Size_1_GB - Size_2_MB /*size*/, AddressSpaceInfo::Type::Is32Bit, },
{ 32 /*bit_width*/, Size_1_GB /*addr*/, Size_4_GB - Size_1_GB /*size*/, AddressSpaceInfo::Type::Small64Bit, },
{ 32 /*bit_width*/, Invalid /*addr*/, Size_1_GB /*size*/, AddressSpaceInfo::Type::Heap, },
{ 32 /*bit_width*/, Invalid /*addr*/, Size_1_GB /*size*/, AddressSpaceInfo::Type::Alias, },
{ 36 /*bit_width*/, Size_128_MB /*addr*/, Size_2_GB - Size_128_MB /*size*/, AddressSpaceInfo::Type::Is32Bit, },
{ 36 /*bit_width*/, Size_2_GB /*addr*/, Size_64_GB - Size_2_GB /*size*/, AddressSpaceInfo::Type::Small64Bit, },
{ 36 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Heap, },
{ 36 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Alias, },
{ 39 /*bit_width*/, Size_128_MB /*addr*/, Size_512_GB - Size_128_MB /*size*/, AddressSpaceInfo::Type::Large64Bit, },
{ 39 /*bit_width*/, Invalid /*addr*/, Size_64_GB /*size*/, AddressSpaceInfo::Type::Is32Bit },
{ 39 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Heap, },
{ 39 /*bit_width*/, Invalid /*addr*/, Size_64_GB /*size*/, AddressSpaceInfo::Type::Alias, },
{ 39 /*bit_width*/, Invalid /*addr*/, Size_2_GB /*size*/, AddressSpaceInfo::Type::Stack, },
}};
// clang-format on
constexpr bool IsAllowedIndexForAddress(std::size_t index) {
return index < std::size(AddressSpaceInfos) && AddressSpaceInfos[index].GetAddress() != Invalid;
}
constexpr std::size_t
AddressSpaceIndices32Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{
0, 1, 0, 2, 0, 3,
};
constexpr std::size_t
AddressSpaceIndices36Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{
4, 5, 4, 6, 4, 7,
};
constexpr std::size_t
AddressSpaceIndices39Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{
9, 8, 8, 10, 12, 11,
};
constexpr bool IsAllowed32BitType(AddressSpaceInfo::Type type) {
return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Large64Bit &&
type != AddressSpaceInfo::Type::Stack;
}
constexpr bool IsAllowed36BitType(AddressSpaceInfo::Type type) {
return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Large64Bit &&
type != AddressSpaceInfo::Type::Stack;
}
constexpr bool IsAllowed39BitType(AddressSpaceInfo::Type type) {
return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Small64Bit;
}
} // namespace
u64 AddressSpaceInfo::GetAddressSpaceStart(std::size_t width, AddressSpaceInfo::Type type) {
const std::size_t index{static_cast<std::size_t>(type)};
switch (width) {
case 32:
ASSERT(IsAllowed32BitType(type));
ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices32Bit[index]));
return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].GetAddress();
case 36:
ASSERT(IsAllowed36BitType(type));
ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices36Bit[index]));
return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].GetAddress();
case 39:
ASSERT(IsAllowed39BitType(type));
ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices39Bit[index]));
return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].GetAddress();
}
UNREACHABLE();
}
std::size_t AddressSpaceInfo::GetAddressSpaceSize(std::size_t width, AddressSpaceInfo::Type type) {
const std::size_t index{static_cast<std::size_t>(type)};
switch (width) {
case 32:
ASSERT(IsAllowed32BitType(type));
return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].GetSize();
case 36:
ASSERT(IsAllowed36BitType(type));
return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].GetSize();
case 39:
ASSERT(IsAllowed39BitType(type));
return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].GetSize();
}
UNREACHABLE();
}
} // namespace Kernel::Memory

View file

@ -0,0 +1,54 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#pragma once
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Kernel::Memory {
class AddressSpaceInfo final : NonCopyable {
public:
enum class Type : u32 {
Is32Bit = 0,
Small64Bit = 1,
Large64Bit = 2,
Heap = 3,
Stack = 4,
Alias = 5,
Count,
};
private:
std::size_t bit_width{};
std::size_t addr{};
std::size_t size{};
Type type{};
public:
static u64 GetAddressSpaceStart(std::size_t width, Type type);
static std::size_t GetAddressSpaceSize(std::size_t width, Type type);
constexpr AddressSpaceInfo(std::size_t bit_width, std::size_t addr, std::size_t size, Type type)
: bit_width{bit_width}, addr{addr}, size{size}, type{type} {}
constexpr std::size_t GetWidth() const {
return bit_width;
}
constexpr std::size_t GetAddress() const {
return addr;
}
constexpr std::size_t GetSize() const {
return size;
}
constexpr Type GetType() const {
return type;
}
};
} // namespace Kernel::Memory

View file

@ -0,0 +1,318 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#pragma once
#include "common/alignment.h"
#include "common/assert.h"
#include "common/common_types.h"
#include "core/hle/kernel/memory/memory_types.h"
#include "core/hle/kernel/svc_types.h"
namespace Kernel::Memory {
enum class MemoryState : u32 {
None = 0,
Mask = 0xFFFFFFFF, // TODO(bunnei): This should probable be 0xFF
All = ~None,
FlagCanReprotect = (1 << 8),
FlagCanDebug = (1 << 9),
FlagCanUseIpc = (1 << 10),
FlagCanUseNonDeviceIpc = (1 << 11),
FlagCanUseNonSecureIpc = (1 << 12),
FlagMapped = (1 << 13),
FlagCode = (1 << 14),
FlagCanAlias = (1 << 15),
FlagCanCodeAlias = (1 << 16),
FlagCanTransfer = (1 << 17),
FlagCanQueryPhysical = (1 << 18),
FlagCanDeviceMap = (1 << 19),
FlagCanAlignedDeviceMap = (1 << 20),
FlagCanIpcUserBuffer = (1 << 21),
FlagReferenceCounted = (1 << 22),
FlagCanMapProcess = (1 << 23),
FlagCanChangeAttribute = (1 << 24),
FlagCanCodeMemory = (1 << 25),
FlagsData = FlagCanReprotect | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc |
FlagMapped | FlagCanAlias | FlagCanTransfer | FlagCanQueryPhysical |
FlagCanDeviceMap | FlagCanAlignedDeviceMap | FlagCanIpcUserBuffer |
FlagReferenceCounted | FlagCanChangeAttribute,
FlagsCode = FlagCanDebug | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc |
FlagMapped | FlagCode | FlagCanQueryPhysical | FlagCanDeviceMap |
FlagCanAlignedDeviceMap | FlagReferenceCounted,
FlagsMisc = FlagMapped | FlagReferenceCounted | FlagCanQueryPhysical | FlagCanDeviceMap,
Free = static_cast<u32>(Svc::MemoryState::Free),
Io = static_cast<u32>(Svc::MemoryState::Io) | FlagMapped,
Static = static_cast<u32>(Svc::MemoryState::Static) | FlagMapped | FlagCanQueryPhysical,
Code = static_cast<u32>(Svc::MemoryState::Code) | FlagsCode | FlagCanMapProcess,
CodeData = static_cast<u32>(Svc::MemoryState::CodeData) | FlagsData | FlagCanMapProcess |
FlagCanCodeMemory,
Shared = static_cast<u32>(Svc::MemoryState::Shared) | FlagMapped | FlagReferenceCounted,
Normal = static_cast<u32>(Svc::MemoryState::Normal) | FlagsData | FlagCanCodeMemory,
AliasCode = static_cast<u32>(Svc::MemoryState::AliasCode) | FlagsCode | FlagCanMapProcess |
FlagCanCodeAlias,
AliasCodeData = static_cast<u32>(Svc::MemoryState::AliasCodeData) | FlagsData |
FlagCanMapProcess | FlagCanCodeAlias | FlagCanCodeMemory,
Ipc = static_cast<u32>(Svc::MemoryState::Ipc) | FlagsMisc | FlagCanAlignedDeviceMap |
FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
Stack = static_cast<u32>(Svc::MemoryState::Stack) | FlagsMisc | FlagCanAlignedDeviceMap |
FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
ThreadLocal =
static_cast<u32>(Svc::MemoryState::ThreadLocal) | FlagMapped | FlagReferenceCounted,
Transfered = static_cast<u32>(Svc::MemoryState::Transfered) | FlagsMisc |
FlagCanAlignedDeviceMap | FlagCanChangeAttribute | FlagCanUseIpc |
FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
SharedTransfered = static_cast<u32>(Svc::MemoryState::SharedTransfered) | FlagsMisc |
FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
SharedCode = static_cast<u32>(Svc::MemoryState::SharedCode) | FlagMapped |
FlagReferenceCounted | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
Inaccessible = static_cast<u32>(Svc::MemoryState::Inaccessible),
NonSecureIpc = static_cast<u32>(Svc::MemoryState::NonSecureIpc) | FlagsMisc |
FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
NonDeviceIpc =
static_cast<u32>(Svc::MemoryState::NonDeviceIpc) | FlagsMisc | FlagCanUseNonDeviceIpc,
Kernel = static_cast<u32>(Svc::MemoryState::Kernel) | FlagMapped,
GeneratedCode = static_cast<u32>(Svc::MemoryState::GeneratedCode) | FlagMapped |
FlagReferenceCounted | FlagCanDebug,
CodeOut = static_cast<u32>(Svc::MemoryState::CodeOut) | FlagMapped | FlagReferenceCounted,
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryState);
static_assert(static_cast<u32>(MemoryState::Free) == 0x00000000);
static_assert(static_cast<u32>(MemoryState::Io) == 0x00002001);
static_assert(static_cast<u32>(MemoryState::Static) == 0x00042002);
static_assert(static_cast<u32>(MemoryState::Code) == 0x00DC7E03);
static_assert(static_cast<u32>(MemoryState::CodeData) == 0x03FEBD04);
static_assert(static_cast<u32>(MemoryState::Normal) == 0x037EBD05);
static_assert(static_cast<u32>(MemoryState::Shared) == 0x00402006);
static_assert(static_cast<u32>(MemoryState::AliasCode) == 0x00DD7E08);
static_assert(static_cast<u32>(MemoryState::AliasCodeData) == 0x03FFBD09);
static_assert(static_cast<u32>(MemoryState::Ipc) == 0x005C3C0A);
static_assert(static_cast<u32>(MemoryState::Stack) == 0x005C3C0B);
static_assert(static_cast<u32>(MemoryState::ThreadLocal) == 0x0040200C);
static_assert(static_cast<u32>(MemoryState::Transfered) == 0x015C3C0D);
static_assert(static_cast<u32>(MemoryState::SharedTransfered) == 0x005C380E);
static_assert(static_cast<u32>(MemoryState::SharedCode) == 0x0040380F);
static_assert(static_cast<u32>(MemoryState::Inaccessible) == 0x00000010);
static_assert(static_cast<u32>(MemoryState::NonSecureIpc) == 0x005C3811);
static_assert(static_cast<u32>(MemoryState::NonDeviceIpc) == 0x004C2812);
static_assert(static_cast<u32>(MemoryState::Kernel) == 0x00002013);
static_assert(static_cast<u32>(MemoryState::GeneratedCode) == 0x00402214);
static_assert(static_cast<u32>(MemoryState::CodeOut) == 0x00402015);
enum class MemoryPermission : u8 {
None = 0,
Mask = static_cast<u8>(~None),
Read = 1 << 0,
Write = 1 << 1,
Execute = 1 << 2,
ReadAndWrite = Read | Write,
ReadAndExecute = Read | Execute,
UserMask = static_cast<u8>(Svc::MemoryPermission::Read | Svc::MemoryPermission::Write |
Svc::MemoryPermission::Execute),
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission);
enum class MemoryAttribute : u8 {
None = 0x00,
Mask = 0x7F,
All = Mask,
DontCareMask = 0x80,
Locked = static_cast<u8>(Svc::MemoryAttribute::Locked),
IpcLocked = static_cast<u8>(Svc::MemoryAttribute::IpcLocked),
DeviceShared = static_cast<u8>(Svc::MemoryAttribute::DeviceShared),
Uncached = static_cast<u8>(Svc::MemoryAttribute::Uncached),
IpcAndDeviceMapped = IpcLocked | DeviceShared,
LockedAndIpcLocked = Locked | IpcLocked,
DeviceSharedAndUncached = DeviceShared | Uncached
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryAttribute);
static_assert((static_cast<u8>(MemoryAttribute::Mask) &
static_cast<u8>(MemoryAttribute::DontCareMask)) == 0);
struct MemoryInfo {
VAddr addr{};
std::size_t size{};
MemoryState state{};
MemoryPermission perm{};
MemoryAttribute attribute{};
MemoryPermission original_perm{};
u16 ipc_lock_count{};
u16 device_use_count{};
constexpr Svc::MemoryInfo GetSvcMemoryInfo() const {
return {
addr,
size,
static_cast<Svc::MemoryState>(state & MemoryState::Mask),
static_cast<Svc::MemoryAttribute>(attribute & MemoryAttribute::Mask),
static_cast<Svc::MemoryPermission>(perm & MemoryPermission::UserMask),
ipc_lock_count,
device_use_count,
};
}
constexpr VAddr GetAddress() const {
return addr;
}
constexpr std::size_t GetSize() const {
return size;
}
constexpr std::size_t GetNumPages() const {
return GetSize() / PageSize;
}
constexpr VAddr GetEndAddress() const {
return GetAddress() + GetSize();
}
constexpr VAddr GetLastAddress() const {
return GetEndAddress() - 1;
}
};
class MemoryBlock final {
friend class MemoryBlockManager;
private:
VAddr addr{};
std::size_t num_pages{};
MemoryState state{MemoryState::None};
u16 ipc_lock_count{};
u16 device_use_count{};
MemoryPermission perm{MemoryPermission::None};
MemoryPermission original_perm{MemoryPermission::None};
MemoryAttribute attribute{MemoryAttribute::None};
public:
static constexpr int Compare(const MemoryBlock& lhs, const MemoryBlock& rhs) {
if (lhs.GetAddress() < rhs.GetAddress()) {
return -1;
} else if (lhs.GetAddress() <= rhs.GetLastAddress()) {
return 0;
} else {
return 1;
}
}
public:
constexpr MemoryBlock() = default;
constexpr MemoryBlock(VAddr addr, std::size_t num_pages, MemoryState state,
MemoryPermission perm, MemoryAttribute attribute)
: addr{addr}, num_pages(num_pages), state{state}, perm{perm}, attribute{attribute} {}
constexpr VAddr GetAddress() const {
return addr;
}
constexpr std::size_t GetNumPages() const {
return num_pages;
}
constexpr std::size_t GetSize() const {
return GetNumPages() * PageSize;
}
constexpr VAddr GetEndAddress() const {
return GetAddress() + GetSize();
}
constexpr VAddr GetLastAddress() const {
return GetEndAddress() - 1;
}
constexpr MemoryInfo GetMemoryInfo() const {
return {
GetAddress(), GetSize(), state, perm,
attribute, original_perm, ipc_lock_count, device_use_count,
};
}
private:
constexpr bool HasProperties(MemoryState s, MemoryPermission p, MemoryAttribute a) const {
constexpr MemoryAttribute AttributeIgnoreMask{MemoryAttribute::DontCareMask |
MemoryAttribute::IpcLocked |
MemoryAttribute::DeviceShared};
return state == s && perm == p &&
(attribute | AttributeIgnoreMask) == (a | AttributeIgnoreMask);
}
constexpr bool HasSameProperties(const MemoryBlock& rhs) const {
return state == rhs.state && perm == rhs.perm && original_perm == rhs.original_perm &&
attribute == rhs.attribute && ipc_lock_count == rhs.ipc_lock_count &&
device_use_count == rhs.device_use_count;
}
constexpr bool Contains(VAddr start) const {
return GetAddress() <= start && start <= GetEndAddress();
}
constexpr void Add(std::size_t count) {
ASSERT(count > 0);
ASSERT(GetAddress() + count * PageSize - 1 < GetEndAddress() + count * PageSize - 1);
num_pages += count;
}
constexpr void Update(MemoryState new_state, MemoryPermission new_perm,
MemoryAttribute new_attribute) {
ASSERT(original_perm == MemoryPermission::None);
ASSERT((attribute & MemoryAttribute::IpcLocked) == MemoryAttribute::None);
state = new_state;
perm = new_perm;
// TODO(bunnei): Is this right?
attribute = static_cast<MemoryAttribute>(
new_attribute /*| (attribute & (MemoryAttribute::IpcLocked | MemoryAttribute::DeviceShared))*/);
}
constexpr MemoryBlock Split(VAddr split_addr) {
ASSERT(GetAddress() < split_addr);
ASSERT(Contains(split_addr));
ASSERT(Common::IsAligned(split_addr, PageSize));
MemoryBlock block;
block.addr = addr;
block.num_pages = (split_addr - GetAddress()) / PageSize;
block.state = state;
block.ipc_lock_count = ipc_lock_count;
block.device_use_count = device_use_count;
block.perm = perm;
block.original_perm = original_perm;
block.attribute = attribute;
addr = split_addr;
num_pages -= block.num_pages;
return block;
}
};
static_assert(std::is_trivially_destructible<MemoryBlock>::value);
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/hle/kernel/memory/memory_block_manager.h"
#include "core/hle/kernel/memory/memory_types.h"
namespace Kernel::Memory {
MemoryBlockManager::MemoryBlockManager(VAddr start_addr, VAddr end_addr)
: start_addr{start_addr}, end_addr{end_addr} {
const u64 num_pages{(end_addr - start_addr) / PageSize};
memory_block_tree.emplace_back(start_addr, num_pages, MemoryState::Free, MemoryPermission::None,
MemoryAttribute::None);
}
MemoryBlockManager::iterator MemoryBlockManager::FindIterator(VAddr addr) {
auto node{memory_block_tree.begin()};
while (node != end()) {
const VAddr end_addr{node->GetNumPages() * PageSize + node->GetAddress()};
if (node->GetAddress() <= addr && end_addr - 1 >= addr) {
return node;
}
node = std::next(node);
}
return end();
}
VAddr MemoryBlockManager::FindFreeArea(VAddr region_start, std::size_t region_num_pages,
std::size_t num_pages, std::size_t align, std::size_t offset,
std::size_t guard_pages) {
if (num_pages == 0) {
return {};
}
const VAddr region_end{region_start + region_num_pages * PageSize};
const VAddr region_last{region_end - 1};
for (auto it{FindIterator(region_start)}; it != memory_block_tree.cend(); it++) {
const auto info{it->GetMemoryInfo()};
if (region_last < info.GetAddress()) {
break;
}
if (info.state != MemoryState::Free) {
continue;
}
VAddr area{(info.GetAddress() <= region_start) ? region_start : info.GetAddress()};
area += guard_pages * PageSize;
const VAddr offset_area{Common::AlignDown(area, align) + offset};
area = (area <= offset_area) ? offset_area : offset_area + align;
const VAddr area_end{area + num_pages * PageSize + guard_pages * PageSize};
const VAddr area_last{area_end - 1};
if (info.GetAddress() <= area && area < area_last && area_last <= region_last &&
area_last <= info.GetLastAddress()) {
return area;
}
}
return {};
}
void MemoryBlockManager::Update(VAddr addr, std::size_t num_pages, MemoryState prev_state,
MemoryPermission prev_perm, MemoryAttribute prev_attribute,
MemoryState state, MemoryPermission perm,
MemoryAttribute attribute) {
const std::size_t prev_count{memory_block_tree.size()};
const VAddr end_addr{addr + num_pages * PageSize};
iterator node{memory_block_tree.begin()};
prev_attribute |= MemoryAttribute::IpcAndDeviceMapped;
while (node != memory_block_tree.end()) {
MemoryBlock* block{&(*node)};
iterator next_node{std::next(node)};
const VAddr cur_addr{block->GetAddress()};
const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr};
if (addr < cur_end_addr && cur_addr < end_addr) {
if (!block->HasProperties(prev_state, prev_perm, prev_attribute)) {
node = next_node;
continue;
}
iterator new_node{node};
if (addr > cur_addr) {
memory_block_tree.insert(node, block->Split(addr));
}
if (end_addr < cur_end_addr) {
new_node = memory_block_tree.insert(node, block->Split(end_addr));
}
new_node->Update(state, perm, attribute);
MergeAdjacent(new_node, next_node);
}
if (cur_end_addr - 1 >= end_addr - 1) {
break;
}
node = next_node;
}
}
void MemoryBlockManager::Update(VAddr addr, std::size_t num_pages, MemoryState state,
MemoryPermission perm, MemoryAttribute attribute) {
const std::size_t prev_count{memory_block_tree.size()};
const VAddr end_addr{addr + num_pages * PageSize};
iterator node{memory_block_tree.begin()};
while (node != memory_block_tree.end()) {
MemoryBlock* block{&(*node)};
iterator next_node{std::next(node)};
const VAddr cur_addr{block->GetAddress()};
const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr};
if (addr < cur_end_addr && cur_addr < end_addr) {
iterator new_node{node};
if (addr > cur_addr) {
memory_block_tree.insert(node, block->Split(addr));
}
if (end_addr < cur_end_addr) {
new_node = memory_block_tree.insert(node, block->Split(end_addr));
}
new_node->Update(state, perm, attribute);
MergeAdjacent(new_node, next_node);
}
if (cur_end_addr - 1 >= end_addr - 1) {
break;
}
node = next_node;
}
}
void MemoryBlockManager::IterateForRange(VAddr start, VAddr end, IterateFunc&& func) {
const_iterator it{FindIterator(start)};
MemoryInfo info{};
do {
info = it->GetMemoryInfo();
func(info);
it = std::next(it);
} while (info.addr + info.size - 1 < end - 1 && it != cend());
}
void MemoryBlockManager::MergeAdjacent(iterator it, iterator& next_it) {
MemoryBlock* block{&(*it)};
auto EraseIt = [&](const iterator it_to_erase) {
if (next_it == it_to_erase) {
next_it = std::next(next_it);
}
memory_block_tree.erase(it_to_erase);
};
if (it != memory_block_tree.begin()) {
MemoryBlock* prev{&(*std::prev(it))};
if (block->HasSameProperties(*prev)) {
const iterator prev_it{std::prev(it)};
prev->Add(block->GetNumPages());
EraseIt(it);
it = prev_it;
block = prev;
}
}
if (it != cend()) {
const MemoryBlock* const next{&(*std::next(it))};
if (block->HasSameProperties(*next)) {
block->Add(next->GetNumPages());
EraseIt(std::next(it));
}
}
}
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <functional>
#include <list>
#include <memory>
#include "common/common_types.h"
#include "core/hle/kernel/memory/memory_block.h"
namespace Kernel::Memory {
class MemoryBlockManager final {
public:
using MemoryBlockTree = std::list<MemoryBlock>;
using iterator = MemoryBlockTree::iterator;
using const_iterator = MemoryBlockTree::const_iterator;
public:
MemoryBlockManager(VAddr start_addr, VAddr end_addr);
iterator end() {
return memory_block_tree.end();
}
const_iterator end() const {
return memory_block_tree.end();
}
const_iterator cend() const {
return memory_block_tree.cend();
}
iterator FindIterator(VAddr addr);
VAddr FindFreeArea(VAddr region_start, std::size_t region_num_pages, std::size_t num_pages,
std::size_t align, std::size_t offset, std::size_t guard_pages);
void Update(VAddr addr, std::size_t num_pages, MemoryState prev_state,
MemoryPermission prev_perm, MemoryAttribute prev_attribute, MemoryState state,
MemoryPermission perm, MemoryAttribute attribute);
void Update(VAddr addr, std::size_t num_pages, MemoryState state,
MemoryPermission perm = MemoryPermission::None,
MemoryAttribute attribute = MemoryAttribute::None);
using IterateFunc = std::function<void(const MemoryInfo&)>;
void IterateForRange(VAddr start, VAddr end, IterateFunc&& func);
MemoryBlock& FindBlock(VAddr addr) {
return *FindIterator(addr);
}
private:
void MergeAdjacent(iterator it, iterator& next_it);
const VAddr start_addr;
const VAddr end_addr;
MemoryBlockTree memory_block_tree;
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_types.h"
namespace Kernel::Memory {
class MemoryRegion final {
friend class MemoryLayout;
public:
constexpr PAddr StartAddress() const {
return start_address;
}
constexpr PAddr EndAddress() const {
return end_address;
}
private:
constexpr MemoryRegion() = default;
constexpr MemoryRegion(PAddr start_address, PAddr end_address)
: start_address{start_address}, end_address{end_address} {}
const PAddr start_address{};
const PAddr end_address{};
};
class MemoryLayout final {
public:
constexpr const MemoryRegion& Application() const {
return application;
}
constexpr const MemoryRegion& Applet() const {
return applet;
}
constexpr const MemoryRegion& System() const {
return system;
}
static constexpr MemoryLayout GetDefaultLayout() {
constexpr std::size_t application_size{0xcd500000};
constexpr std::size_t applet_size{0x1fb00000};
constexpr PAddr application_start_address{Core::DramMemoryMap::End - application_size};
constexpr PAddr application_end_address{Core::DramMemoryMap::End};
constexpr PAddr applet_start_address{application_start_address - applet_size};
constexpr PAddr applet_end_address{applet_start_address + applet_size};
constexpr PAddr system_start_address{Core::DramMemoryMap::SlabHeapEnd};
constexpr PAddr system_end_address{applet_start_address};
return {application_start_address, application_end_address, applet_start_address,
applet_end_address, system_start_address, system_end_address};
}
private:
constexpr MemoryLayout(PAddr application_start_address, std::size_t application_size,
PAddr applet_start_address, std::size_t applet_size,
PAddr system_start_address, std::size_t system_size)
: application{application_start_address, application_size},
applet{applet_start_address, applet_size}, system{system_start_address, system_size} {}
const MemoryRegion application;
const MemoryRegion applet;
const MemoryRegion system;
const PAddr start_address{};
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/common_types.h"
#include "common/scope_exit.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/memory/memory_manager.h"
#include "core/hle/kernel/memory/page_linked_list.h"
namespace Kernel::Memory {
std::size_t MemoryManager::Impl::Initialize(Pool new_pool, u64 start_address, u64 end_address) {
const auto size{end_address - start_address};
// Calculate metadata sizes
const auto ref_count_size{(size / PageSize) * sizeof(u16)};
const auto optimize_map_size{(Common::AlignUp((size / PageSize), 64) / 64) * sizeof(u64)};
const auto manager_size{Common::AlignUp(optimize_map_size + ref_count_size, PageSize)};
const auto page_heap_size{PageHeap::CalculateMetadataOverheadSize(size)};
const auto total_metadata_size{manager_size + page_heap_size};
ASSERT(manager_size <= total_metadata_size);
ASSERT(Common::IsAligned(total_metadata_size, PageSize));
// Setup region
pool = new_pool;
// Initialize the manager's KPageHeap
heap.Initialize(start_address, size, page_heap_size);
// Free the memory to the heap
heap.Free(start_address, size / PageSize);
// Update the heap's used size
heap.UpdateUsedSize();
return total_metadata_size;
}
void MemoryManager::InitializeManager(Pool pool, u64 start_address, u64 end_address) {
ASSERT(pool < Pool::Count);
managers[static_cast<std::size_t>(pool)].Initialize(pool, start_address, end_address);
}
VAddr MemoryManager::AllocateContinuous(std::size_t num_pages, std::size_t align_pages, Pool pool,
Direction dir) {
// Early return if we're allocating no pages
if (num_pages == 0) {
return {};
}
// Lock the pool that we're allocating from
const auto pool_index{static_cast<std::size_t>(pool)};
std::lock_guard lock{pool_locks[pool_index]};
// Choose a heap based on our page size request
const s32 heap_index{PageHeap::GetAlignedBlockIndex(num_pages, align_pages)};
// Loop, trying to iterate from each block
// TODO (bunnei): Support multiple managers
Impl& chosen_manager{managers[pool_index]};
VAddr allocated_block{chosen_manager.AllocateBlock(heap_index)};
// If we failed to allocate, quit now
if (!allocated_block) {
return {};
}
// If we allocated more than we need, free some
const auto allocated_pages{PageHeap::GetBlockNumPages(heap_index)};
if (allocated_pages > num_pages) {
chosen_manager.Free(allocated_block + num_pages * PageSize, allocated_pages - num_pages);
}
return allocated_block;
}
ResultCode MemoryManager::Allocate(PageLinkedList& page_list, std::size_t num_pages, Pool pool,
Direction dir) {
ASSERT(page_list.GetNumPages() == 0);
// Early return if we're allocating no pages
if (num_pages == 0) {
return RESULT_SUCCESS;
}
// Lock the pool that we're allocating from
const auto pool_index{static_cast<std::size_t>(pool)};
std::lock_guard lock{pool_locks[pool_index]};
// Choose a heap based on our page size request
const s32 heap_index{PageHeap::GetBlockIndex(num_pages)};
if (heap_index < 0) {
return ERR_OUT_OF_MEMORY;
}
// TODO (bunnei): Support multiple managers
Impl& chosen_manager{managers[pool_index]};
// Ensure that we don't leave anything un-freed
auto group_guard = detail::ScopeExit([&] {
for (const auto& it : page_list.Nodes()) {
const auto num_pages{std::min(
it.GetNumPages(), (chosen_manager.GetEndAddress() - it.GetAddress()) / PageSize)};
chosen_manager.Free(it.GetAddress(), num_pages);
}
});
// Keep allocating until we've allocated all our pages
for (s32 index{heap_index}; index >= 0 && num_pages > 0; index--) {
const auto pages_per_alloc{PageHeap::GetBlockNumPages(index)};
while (num_pages >= pages_per_alloc) {
// Allocate a block
VAddr allocated_block{chosen_manager.AllocateBlock(index)};
if (!allocated_block) {
break;
}
// Safely add it to our group
{
auto block_guard = detail::ScopeExit(
[&] { chosen_manager.Free(allocated_block, pages_per_alloc); });
if (const ResultCode result{page_list.AddBlock(allocated_block, pages_per_alloc)};
result.IsError()) {
return result;
}
block_guard.Cancel();
}
num_pages -= pages_per_alloc;
}
}
// Only succeed if we allocated as many pages as we wanted
ASSERT(num_pages >= 0);
if (num_pages) {
return ERR_OUT_OF_MEMORY;
}
// We succeeded!
group_guard.Cancel();
return RESULT_SUCCESS;
}
ResultCode MemoryManager::Free(PageLinkedList& page_list, std::size_t num_pages, Pool pool,
Direction dir) {
// Early return if we're freeing no pages
if (!num_pages) {
return RESULT_SUCCESS;
}
// Lock the pool that we're freeing from
const auto pool_index{static_cast<std::size_t>(pool)};
std::lock_guard lock{pool_locks[pool_index]};
// TODO (bunnei): Support multiple managers
Impl& chosen_manager{managers[pool_index]};
// Free all of the pages
for (const auto& it : page_list.Nodes()) {
const auto num_pages{std::min(
it.GetNumPages(), (chosen_manager.GetEndAddress() - it.GetAddress()) / PageSize)};
chosen_manager.Free(it.GetAddress(), num_pages);
}
return RESULT_SUCCESS;
}
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <mutex>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/hle/kernel/memory/page_heap.h"
#include "core/hle/result.h"
namespace Kernel::Memory {
class PageLinkedList;
class MemoryManager final : NonCopyable {
public:
enum class Pool : u32 {
Application = 0,
Applet = 1,
System = 2,
SystemNonSecure = 3,
Count,
Shift = 4,
Mask = (0xF << Shift),
};
enum class Direction : u32 {
FromFront = 0,
FromBack = 1,
Shift = 0,
Mask = (0xF << Shift),
};
MemoryManager() = default;
constexpr std::size_t GetSize(Pool pool) const {
return managers[static_cast<std::size_t>(pool)].GetSize();
}
void InitializeManager(Pool pool, u64 start_address, u64 end_address);
VAddr AllocateContinuous(std::size_t num_pages, std::size_t align_pages, Pool pool,
Direction dir = Direction::FromFront);
ResultCode Allocate(PageLinkedList& page_list, std::size_t num_pages, Pool pool,
Direction dir = Direction::FromFront);
ResultCode Free(PageLinkedList& page_list, std::size_t num_pages, Pool pool,
Direction dir = Direction::FromFront);
static constexpr std::size_t MaxManagerCount = 10;
private:
class Impl final : NonCopyable {
private:
using RefCount = u16;
private:
PageHeap heap;
Pool pool{};
public:
Impl() = default;
std::size_t Initialize(Pool new_pool, u64 start_address, u64 end_address);
VAddr AllocateBlock(s32 index) {
return heap.AllocateBlock(index);
}
void Free(VAddr addr, std::size_t num_pages) {
heap.Free(addr, num_pages);
}
constexpr std::size_t GetSize() const {
return heap.GetSize();
}
constexpr VAddr GetAddress() const {
return heap.GetAddress();
}
constexpr VAddr GetEndAddress() const {
return heap.GetEndAddress();
}
};
private:
std::array<std::mutex, static_cast<std::size_t>(Pool::Count)> pool_locks;
std::array<Impl, MaxManagerCount> managers;
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include "common/common_types.h"
namespace Kernel::Memory {
constexpr std::size_t PageBits{12};
constexpr std::size_t PageSize{1 << PageBits};
using Page = std::array<u8, PageSize>;
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#include "core/core.h"
#include "core/hle/kernel/memory/page_heap.h"
#include "core/memory.h"
namespace Kernel::Memory {
void PageHeap::Initialize(VAddr address, std::size_t size, std::size_t metadata_size) {
// Check our assumptions
ASSERT(Common::IsAligned((address), PageSize));
ASSERT(Common::IsAligned(size, PageSize));
// Set our members
heap_address = address;
heap_size = size;
// Setup bitmaps
metadata.resize(metadata_size / sizeof(u64));
u64* cur_bitmap_storage{metadata.data()};
for (std::size_t i = 0; i < MemoryBlockPageShifts.size(); i++) {
const std::size_t cur_block_shift{MemoryBlockPageShifts[i]};
const std::size_t next_block_shift{
(i != MemoryBlockPageShifts.size() - 1) ? MemoryBlockPageShifts[i + 1] : 0};
cur_bitmap_storage = blocks[i].Initialize(heap_address, heap_size, cur_block_shift,
next_block_shift, cur_bitmap_storage);
}
}
VAddr PageHeap::AllocateBlock(s32 index) {
const std::size_t needed_size{blocks[index].GetSize()};
for (s32 i{index}; i < static_cast<s32>(MemoryBlockPageShifts.size()); i++) {
if (const VAddr addr{blocks[i].PopBlock()}; addr) {
if (const std::size_t allocated_size{blocks[i].GetSize()};
allocated_size > needed_size) {
Free(addr + needed_size, (allocated_size - needed_size) / PageSize);
}
return addr;
}
}
return 0;
}
void PageHeap::FreeBlock(VAddr block, s32 index) {
do {
block = blocks[index++].PushBlock(block);
} while (block != 0);
}
void PageHeap::Free(VAddr addr, std::size_t num_pages) {
// Freeing no pages is a no-op
if (num_pages == 0) {
return;
}
// Find the largest block size that we can free, and free as many as possible
s32 big_index{static_cast<s32>(MemoryBlockPageShifts.size()) - 1};
const VAddr start{addr};
const VAddr end{(num_pages * PageSize) + addr};
VAddr before_start{start};
VAddr before_end{start};
VAddr after_start{end};
VAddr after_end{end};
while (big_index >= 0) {
const std::size_t block_size{blocks[big_index].GetSize()};
const VAddr big_start{Common::AlignUp((start), block_size)};
const VAddr big_end{Common::AlignDown((end), block_size)};
if (big_start < big_end) {
// Free as many big blocks as we can
for (auto block{big_start}; block < big_end; block += block_size) {
FreeBlock(block, big_index);
}
before_end = big_start;
after_start = big_end;
break;
}
big_index--;
}
ASSERT(big_index >= 0);
// Free space before the big blocks
for (s32 i{big_index - 1}; i >= 0; i--) {
const std::size_t block_size{blocks[i].GetSize()};
while (before_start + block_size <= before_end) {
before_end -= block_size;
FreeBlock(before_end, i);
}
}
// Free space after the big blocks
for (s32 i{big_index - 1}; i >= 0; i--) {
const std::size_t block_size{blocks[i].GetSize()};
while (after_start + block_size <= after_end) {
FreeBlock(after_start, i);
after_start += block_size;
}
}
}
std::size_t PageHeap::CalculateMetadataOverheadSize(std::size_t region_size) {
std::size_t overhead_size = 0;
for (std::size_t i = 0; i < MemoryBlockPageShifts.size(); i++) {
const std::size_t cur_block_shift{MemoryBlockPageShifts[i]};
const std::size_t next_block_shift{
(i != MemoryBlockPageShifts.size() - 1) ? MemoryBlockPageShifts[i + 1] : 0};
overhead_size += PageHeap::Block::CalculateMetadataOverheadSize(
region_size, cur_block_shift, next_block_shift);
}
return Common::AlignUp(overhead_size, PageSize);
}
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#pragma once
#include <array>
#include <vector>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/bit_util.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/hle/kernel/memory/memory_types.h"
namespace Kernel::Memory {
class PageHeap final : NonCopyable {
public:
static constexpr s32 GetAlignedBlockIndex(std::size_t num_pages, std::size_t align_pages) {
const auto target_pages{std::max(num_pages, align_pages)};
for (std::size_t i = 0; i < NumMemoryBlockPageShifts; i++) {
if (target_pages <=
(static_cast<std::size_t>(1) << MemoryBlockPageShifts[i]) / PageSize) {
return static_cast<s32>(i);
}
}
return -1;
}
static constexpr s32 GetBlockIndex(std::size_t num_pages) {
for (s32 i{static_cast<s32>(NumMemoryBlockPageShifts) - 1}; i >= 0; i--) {
if (num_pages >= (static_cast<std::size_t>(1) << MemoryBlockPageShifts[i]) / PageSize) {
return i;
}
}
return -1;
}
static constexpr std::size_t GetBlockSize(std::size_t index) {
return static_cast<std::size_t>(1) << MemoryBlockPageShifts[index];
}
static constexpr std::size_t GetBlockNumPages(std::size_t index) {
return GetBlockSize(index) / PageSize;
}
private:
static constexpr std::size_t NumMemoryBlockPageShifts{7};
static constexpr std::array<std::size_t, NumMemoryBlockPageShifts> MemoryBlockPageShifts{
0xC, 0x10, 0x15, 0x16, 0x19, 0x1D, 0x1E,
};
class Block final : NonCopyable {
private:
class Bitmap final : NonCopyable {
public:
static constexpr std::size_t MaxDepth{4};
private:
std::array<u64*, MaxDepth> bit_storages{};
std::size_t num_bits{};
std::size_t used_depths{};
public:
constexpr Bitmap() = default;
constexpr std::size_t GetNumBits() const {
return num_bits;
}
constexpr s32 GetHighestDepthIndex() const {
return static_cast<s32>(used_depths) - 1;
}
constexpr u64* Initialize(u64* storage, std::size_t size) {
//* Initially, everything is un-set
num_bits = 0;
// Calculate the needed bitmap depth
used_depths = static_cast<std::size_t>(GetRequiredDepth(size));
ASSERT(used_depths <= MaxDepth);
// Set the bitmap pointers
for (s32 depth{GetHighestDepthIndex()}; depth >= 0; depth--) {
bit_storages[depth] = storage;
size = Common::AlignUp(size, 64) / 64;
storage += size;
}
return storage;
}
s64 FindFreeBlock() const {
uintptr_t offset{};
s32 depth{};
do {
const u64 v{bit_storages[depth][offset]};
if (v == 0) {
// Non-zero depth indicates that a previous level had a free block
ASSERT(depth == 0);
return -1;
}
offset = offset * 64 + Common::CountTrailingZeroes64(v);
++depth;
} while (depth < static_cast<s32>(used_depths));
return static_cast<s64>(offset);
}
constexpr void SetBit(std::size_t offset) {
SetBit(GetHighestDepthIndex(), offset);
num_bits++;
}
constexpr void ClearBit(std::size_t offset) {
ClearBit(GetHighestDepthIndex(), offset);
num_bits--;
}
constexpr bool ClearRange(std::size_t offset, std::size_t count) {
const s32 depth{GetHighestDepthIndex()};
const auto bit_ind{offset / 64};
u64* bits{bit_storages[depth]};
if (count < 64) {
const auto shift{offset % 64};
ASSERT(shift + count <= 64);
// Check that all the bits are set
const u64 mask{((1ULL << count) - 1) << shift};
u64 v{bits[bit_ind]};
if ((v & mask) != mask) {
return false;
}
// Clear the bits
v &= ~mask;
bits[bit_ind] = v;
if (v == 0) {
ClearBit(depth - 1, bit_ind);
}
} else {
ASSERT(offset % 64 == 0);
ASSERT(count % 64 == 0);
// Check that all the bits are set
std::size_t remaining{count};
std::size_t i = 0;
do {
if (bits[bit_ind + i++] != ~u64(0)) {
return false;
}
remaining -= 64;
} while (remaining > 0);
// Clear the bits
remaining = count;
i = 0;
do {
bits[bit_ind + i] = 0;
ClearBit(depth - 1, bit_ind + i);
i++;
remaining -= 64;
} while (remaining > 0);
}
num_bits -= count;
return true;
}
private:
constexpr void SetBit(s32 depth, std::size_t offset) {
while (depth >= 0) {
const auto ind{offset / 64};
const auto which{offset % 64};
const u64 mask{1ULL << which};
u64* bit{std::addressof(bit_storages[depth][ind])};
const u64 v{*bit};
ASSERT((v & mask) == 0);
*bit = v | mask;
if (v) {
break;
}
offset = ind;
depth--;
}
}
constexpr void ClearBit(s32 depth, std::size_t offset) {
while (depth >= 0) {
const auto ind{offset / 64};
const auto which{offset % 64};
const u64 mask{1ULL << which};
u64* bit{std::addressof(bit_storages[depth][ind])};
u64 v{*bit};
ASSERT((v & mask) != 0);
v &= ~mask;
*bit = v;
if (v) {
break;
}
offset = ind;
depth--;
}
}
private:
static constexpr s32 GetRequiredDepth(std::size_t region_size) {
s32 depth = 0;
while (true) {
region_size /= 64;
depth++;
if (region_size == 0) {
return depth;
}
}
}
public:
static constexpr std::size_t CalculateMetadataOverheadSize(std::size_t region_size) {
std::size_t overhead_bits = 0;
for (s32 depth{GetRequiredDepth(region_size) - 1}; depth >= 0; depth--) {
region_size = Common::AlignUp(region_size, 64) / 64;
overhead_bits += region_size;
}
return overhead_bits * sizeof(u64);
}
};
private:
Bitmap bitmap;
VAddr heap_address{};
uintptr_t end_offset{};
std::size_t block_shift{};
std::size_t next_block_shift{};
public:
constexpr Block() = default;
constexpr std::size_t GetShift() const {
return block_shift;
}
constexpr std::size_t GetNextShift() const {
return next_block_shift;
}
constexpr std::size_t GetSize() const {
return static_cast<std::size_t>(1) << GetShift();
}
constexpr std::size_t GetNumPages() const {
return GetSize() / PageSize;
}
constexpr std::size_t GetNumFreeBlocks() const {
return bitmap.GetNumBits();
}
constexpr std::size_t GetNumFreePages() const {
return GetNumFreeBlocks() * GetNumPages();
}
constexpr u64* Initialize(VAddr addr, std::size_t size, std::size_t bs, std::size_t nbs,
u64* bit_storage) {
// Set shifts
block_shift = bs;
next_block_shift = nbs;
// Align up the address
VAddr end{addr + size};
const auto align{(next_block_shift != 0) ? (1ULL << next_block_shift)
: (1ULL << block_shift)};
addr = Common::AlignDown((addr), align);
end = Common::AlignUp((end), align);
heap_address = addr;
end_offset = (end - addr) / (1ULL << block_shift);
return bitmap.Initialize(bit_storage, end_offset);
}
constexpr VAddr PushBlock(VAddr address) {
// Set the bit for the free block
std::size_t offset{(address - heap_address) >> GetShift()};
bitmap.SetBit(offset);
// If we have a next shift, try to clear the blocks below and return the address
if (GetNextShift()) {
const auto diff{1ULL << (GetNextShift() - GetShift())};
offset = Common::AlignDown(offset, diff);
if (bitmap.ClearRange(offset, diff)) {
return heap_address + (offset << GetShift());
}
}
// We couldn't coalesce, or we're already as big as possible
return 0;
}
VAddr PopBlock() {
// Find a free block
const s64 soffset{bitmap.FindFreeBlock()};
if (soffset < 0) {
return 0;
}
const auto offset{static_cast<std::size_t>(soffset)};
// Update our tracking and return it
bitmap.ClearBit(offset);
return heap_address + (offset << GetShift());
}
public:
static constexpr std::size_t CalculateMetadataOverheadSize(std::size_t region_size,
std::size_t cur_block_shift,
std::size_t next_block_shift) {
const auto cur_block_size{(1ULL << cur_block_shift)};
const auto next_block_size{(1ULL << next_block_shift)};
const auto align{(next_block_shift != 0) ? next_block_size : cur_block_size};
return Bitmap::CalculateMetadataOverheadSize(
(align * 2 + Common::AlignUp(region_size, align)) / cur_block_size);
}
};
public:
PageHeap() = default;
constexpr VAddr GetAddress() const {
return heap_address;
}
constexpr std::size_t GetSize() const {
return heap_size;
}
constexpr VAddr GetEndAddress() const {
return GetAddress() + GetSize();
}
constexpr std::size_t GetPageOffset(VAddr block) const {
return (block - GetAddress()) / PageSize;
}
void Initialize(VAddr heap_address, std::size_t heap_size, std::size_t metadata_size);
VAddr AllocateBlock(s32 index);
void Free(VAddr addr, std::size_t num_pages);
void UpdateUsedSize() {
used_size = heap_size - (GetNumFreePages() * PageSize);
}
static std::size_t CalculateMetadataOverheadSize(std::size_t region_size);
private:
constexpr std::size_t GetNumFreePages() const {
std::size_t num_free{};
for (const auto& block : blocks) {
num_free += block.GetNumFreePages();
}
return num_free;
}
void FreeBlock(VAddr block, s32 index);
VAddr heap_address{};
std::size_t heap_size{};
std::size_t used_size{};
std::array<Block, NumMemoryBlockPageShifts> blocks{};
std::vector<u64> metadata;
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <list>
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/hle/kernel/memory/memory_types.h"
#include "core/hle/result.h"
namespace Kernel::Memory {
class PageLinkedList final {
public:
class Node final {
public:
constexpr Node(u64 addr, std::size_t num_pages) : addr{addr}, num_pages{num_pages} {}
constexpr u64 GetAddress() const {
return addr;
}
constexpr std::size_t GetNumPages() const {
return num_pages;
}
private:
u64 addr{};
std::size_t num_pages{};
};
public:
PageLinkedList() = default;
PageLinkedList(u64 address, u64 num_pages) {
ASSERT(AddBlock(address, num_pages).IsSuccess());
}
constexpr std::list<Node>& Nodes() {
return nodes;
}
constexpr const std::list<Node>& Nodes() const {
return nodes;
}
std::size_t GetNumPages() const {
std::size_t num_pages = 0;
for (const Node& node : nodes) {
num_pages += node.GetNumPages();
}
return num_pages;
}
bool IsEqual(PageLinkedList& other) const {
auto this_node = nodes.begin();
auto other_node = other.nodes.begin();
while (this_node != nodes.end() && other_node != other.nodes.end()) {
if (this_node->GetAddress() != other_node->GetAddress() ||
this_node->GetNumPages() != other_node->GetNumPages()) {
return false;
}
this_node = std::next(this_node);
other_node = std::next(other_node);
}
return this_node == nodes.end() && other_node == other.nodes.end();
}
ResultCode AddBlock(u64 address, u64 num_pages) {
if (!num_pages) {
return RESULT_SUCCESS;
}
if (!nodes.empty()) {
const auto node = nodes.back();
if (node.GetAddress() + node.GetNumPages() * PageSize == address) {
address = node.GetAddress();
num_pages += node.GetNumPages();
nodes.pop_back();
}
}
nodes.push_back({address, num_pages});
return RESULT_SUCCESS;
}
private:
std::list<Node> nodes;
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <list>
#include <memory>
#include <mutex>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/page_table.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/memory/memory_block.h"
#include "core/hle/kernel/memory/memory_manager.h"
namespace Core {
class System;
}
namespace Kernel::Memory {
class MemoryBlockManager;
class PageTable final : NonCopyable {
public:
explicit PageTable(Core::System& system);
ResultCode InitializeForProcess(FileSys::ProgramAddressSpaceType as_type, bool enable_aslr,
VAddr code_addr, std::size_t code_size,
Memory::MemoryManager::Pool pool);
ResultCode MapProcessCode(VAddr addr, std::size_t pages_count, MemoryState state,
MemoryPermission perm);
ResultCode MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size);
ResultCode UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size);
ResultCode MapPhysicalMemory(VAddr addr, std::size_t size);
ResultCode UnmapPhysicalMemory(VAddr addr, std::size_t size);
ResultCode UnmapMemory(VAddr addr, std::size_t size);
ResultCode Map(VAddr dst_addr, VAddr src_addr, std::size_t size);
ResultCode Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size);
ResultCode MapPages(VAddr addr, PageLinkedList& page_linked_list, MemoryState state,
MemoryPermission perm);
ResultCode SetCodeMemoryPermission(VAddr addr, std::size_t size, MemoryPermission perm);
MemoryInfo QueryInfo(VAddr addr);
ResultCode ReserveTransferMemory(VAddr addr, std::size_t size, MemoryPermission perm);
ResultCode ResetTransferMemory(VAddr addr, std::size_t size);
ResultCode SetMemoryAttribute(VAddr addr, std::size_t size, MemoryAttribute mask,
MemoryAttribute value);
ResultCode SetHeapCapacity(std::size_t new_heap_capacity);
ResultVal<VAddr> SetHeapSize(std::size_t size);
ResultVal<VAddr> AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align,
bool is_map_only, VAddr region_start,
std::size_t region_num_pages, MemoryState state,
MemoryPermission perm, PAddr map_addr = 0);
Common::PageTable& PageTableImpl() {
return page_table_impl;
}
const Common::PageTable& PageTableImpl() const {
return page_table_impl;
}
private:
enum class OperationType : u32 {
Map,
MapGroup,
Unmap,
ChangePermissions,
ChangePermissionsAndRefresh,
};
static constexpr MemoryAttribute DefaultMemoryIgnoreAttr =
MemoryAttribute::DontCareMask | MemoryAttribute::IpcLocked | MemoryAttribute::DeviceShared;
ResultCode InitializeMemoryLayout(VAddr start, VAddr end);
ResultCode MapPages(VAddr addr, const PageLinkedList& page_linked_list, MemoryPermission perm);
void MapPhysicalMemory(PageLinkedList& page_linked_list, VAddr start, VAddr end);
bool IsRegionMapped(VAddr address, u64 size);
bool IsRegionContiguous(VAddr addr, u64 size) const;
void AddRegionToPages(VAddr start, std::size_t num_pages, PageLinkedList& page_linked_list);
MemoryInfo QueryInfoImpl(VAddr addr);
VAddr AllocateVirtualMemory(VAddr start, std::size_t region_num_pages, u64 needed_num_pages,
std::size_t align);
ResultCode Operate(VAddr addr, std::size_t num_pages, const PageLinkedList& page_group,
OperationType operation);
ResultCode Operate(VAddr addr, std::size_t num_pages, MemoryPermission perm,
OperationType operation, PAddr map_addr = 0);
constexpr VAddr GetRegionAddress(MemoryState state) const;
constexpr std::size_t GetRegionSize(MemoryState state) const;
constexpr bool CanContain(VAddr addr, std::size_t size, MemoryState state) const;
constexpr ResultCode CheckMemoryState(const MemoryInfo& info, MemoryState state_mask,
MemoryState state, MemoryPermission perm_mask,
MemoryPermission perm, MemoryAttribute attr_mask,
MemoryAttribute attr) const;
ResultCode CheckMemoryState(MemoryState* out_state, MemoryPermission* out_perm,
MemoryAttribute* out_attr, VAddr addr, std::size_t size,
MemoryState state_mask, MemoryState state,
MemoryPermission perm_mask, MemoryPermission perm,
MemoryAttribute attr_mask, MemoryAttribute attr,
MemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr);
ResultCode CheckMemoryState(VAddr addr, std::size_t size, MemoryState state_mask,
MemoryState state, MemoryPermission perm_mask,
MemoryPermission perm, MemoryAttribute attr_mask,
MemoryAttribute attr,
MemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) {
return CheckMemoryState(nullptr, nullptr, nullptr, addr, size, state_mask, state, perm_mask,
perm, attr_mask, attr, ignore_attr);
}
std::recursive_mutex page_table_lock;
std::unique_ptr<MemoryBlockManager> block_manager;
public:
constexpr VAddr GetAddressSpaceStart() const {
return address_space_start;
}
constexpr VAddr GetAddressSpaceEnd() const {
return address_space_end;
}
constexpr std::size_t GetAddressSpaceSize() const {
return address_space_end - address_space_start;
}
constexpr VAddr GetHeapRegionStart() const {
return heap_region_start;
}
constexpr VAddr GetHeapRegionEnd() const {
return heap_region_end;
}
constexpr std::size_t GetHeapRegionSize() const {
return heap_region_end - heap_region_start;
}
constexpr VAddr GetAliasRegionStart() const {
return alias_region_start;
}
constexpr VAddr GetAliasRegionEnd() const {
return alias_region_end;
}
constexpr std::size_t GetAliasRegionSize() const {
return alias_region_end - alias_region_start;
}
constexpr VAddr GetStackRegionStart() const {
return stack_region_start;
}
constexpr VAddr GetStackRegionEnd() const {
return stack_region_end;
}
constexpr std::size_t GetStackRegionSize() const {
return stack_region_end - stack_region_start;
}
constexpr VAddr GetKernelMapRegionStart() const {
return kernel_map_region_start;
}
constexpr VAddr GetKernelMapRegionEnd() const {
return kernel_map_region_end;
}
constexpr VAddr GetCodeRegionStart() const {
return code_region_start;
}
constexpr VAddr GetCodeRegionEnd() const {
return code_region_end;
}
constexpr VAddr GetAliasCodeRegionStart() const {
return alias_code_region_start;
}
constexpr VAddr GetAliasCodeRegionSize() const {
return alias_code_region_end - alias_code_region_start;
}
constexpr std::size_t GetAddressSpaceWidth() const {
return address_space_width;
}
constexpr std::size_t GetHeapSize() {
return current_heap_addr - heap_region_start;
}
constexpr std::size_t GetTotalHeapSize() {
return GetHeapSize() + physical_memory_usage;
}
constexpr bool IsInsideAddressSpace(VAddr address, std::size_t size) const {
return address_space_start <= address && address + size - 1 <= address_space_end - 1;
}
constexpr bool IsOutsideAliasRegion(VAddr address, std::size_t size) const {
return alias_region_start > address || address + size - 1 > alias_region_end - 1;
}
constexpr bool IsOutsideStackRegion(VAddr address, std::size_t size) const {
return stack_region_start > address || address + size - 1 > stack_region_end - 1;
}
constexpr bool IsInvalidRegion(VAddr address, std::size_t size) const {
return address + size - 1 > GetAliasCodeRegionStart() + GetAliasCodeRegionSize() - 1;
}
constexpr bool IsInsideHeapRegion(VAddr address, std::size_t size) const {
return address + size > heap_region_start && heap_region_end > address;
}
constexpr bool IsInsideAliasRegion(VAddr address, std::size_t size) const {
return address + size > alias_region_start && alias_region_end > address;
}
constexpr bool IsOutsideASLRRegion(VAddr address, std::size_t size) const {
if (IsInvalidRegion(address, size)) {
return true;
}
if (IsInsideHeapRegion(address, size)) {
return true;
}
if (IsInsideAliasRegion(address, size)) {
return true;
}
return {};
}
constexpr bool IsInsideASLRRegion(VAddr address, std::size_t size) const {
return !IsOutsideASLRRegion(address, size);
}
constexpr PAddr GetPhysicalAddr(VAddr addr) {
return page_table_impl.backing_addr[addr >> Memory::PageBits] + addr;
}
private:
constexpr bool Contains(VAddr addr) const {
return address_space_start <= addr && addr <= address_space_end - 1;
}
constexpr bool Contains(VAddr addr, std::size_t size) const {
return address_space_start <= addr && addr < addr + size &&
addr + size - 1 <= address_space_end - 1;
}
constexpr bool IsKernel() const {
return is_kernel;
}
constexpr bool IsAslrEnabled() const {
return is_aslr_enabled;
}
constexpr std::size_t GetNumGuardPages() const {
return IsKernel() ? 1 : 4;
}
constexpr bool ContainsPages(VAddr addr, std::size_t num_pages) const {
return (address_space_start <= addr) &&
(num_pages <= (address_space_end - address_space_start) / PageSize) &&
(addr + num_pages * PageSize - 1 <= address_space_end - 1);
}
private:
VAddr address_space_start{};
VAddr address_space_end{};
VAddr heap_region_start{};
VAddr heap_region_end{};
VAddr current_heap_end{};
VAddr alias_region_start{};
VAddr alias_region_end{};
VAddr stack_region_start{};
VAddr stack_region_end{};
VAddr kernel_map_region_start{};
VAddr kernel_map_region_end{};
VAddr code_region_start{};
VAddr code_region_end{};
VAddr alias_code_region_start{};
VAddr alias_code_region_end{};
VAddr current_heap_addr{};
std::size_t heap_capacity{};
std::size_t physical_memory_usage{};
std::size_t max_heap_size{};
std::size_t max_physical_memory_size{};
std::size_t address_space_width{};
bool is_kernel{};
bool is_aslr_enabled{};
MemoryManager::Pool memory_pool{MemoryManager::Pool::Application};
Common::PageTable page_table_impl;
Core::System& system;
};
} // namespace Kernel::Memory

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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphère, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX.
#pragma once
#include <atomic>
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Kernel::Memory {
namespace impl {
class SlabHeapImpl final : NonCopyable {
public:
struct Node {
Node* next{};
};
constexpr SlabHeapImpl() = default;
void Initialize(std::size_t size) {
ASSERT(head == nullptr);
obj_size = size;
}
constexpr std::size_t GetObjectSize() const {
return obj_size;
}
Node* GetHead() const {
return head;
}
void* Allocate() {
Node* ret = head.load();
do {
if (ret == nullptr) {
break;
}
} while (!head.compare_exchange_weak(ret, ret->next));
return ret;
}
void Free(void* obj) {
Node* node = reinterpret_cast<Node*>(obj);
Node* cur_head = head.load();
do {
node->next = cur_head;
} while (!head.compare_exchange_weak(cur_head, node));
}
private:
std::atomic<Node*> head{};
std::size_t obj_size{};
};
} // namespace impl
class SlabHeapBase : NonCopyable {
public:
constexpr SlabHeapBase() = default;
constexpr bool Contains(uintptr_t addr) const {
return start <= addr && addr < end;
}
constexpr std::size_t GetSlabHeapSize() const {
return (end - start) / GetObjectSize();
}
constexpr std::size_t GetObjectSize() const {
return impl.GetObjectSize();
}
constexpr uintptr_t GetSlabHeapAddress() const {
return start;
}
std::size_t GetObjectIndexImpl(const void* obj) const {
return (reinterpret_cast<uintptr_t>(obj) - start) / GetObjectSize();
}
std::size_t GetPeakIndex() const {
return GetObjectIndexImpl(reinterpret_cast<const void*>(peak));
}
void* AllocateImpl() {
return impl.Allocate();
}
void FreeImpl(void* obj) {
// Don't allow freeing an object that wasn't allocated from this heap
ASSERT(Contains(reinterpret_cast<uintptr_t>(obj)));
impl.Free(obj);
}
void InitializeImpl(std::size_t obj_size, void* memory, std::size_t memory_size) {
// Ensure we don't initialize a slab using null memory
ASSERT(memory != nullptr);
// Initialize the base allocator
impl.Initialize(obj_size);
// Set our tracking variables
const std::size_t num_obj = (memory_size / obj_size);
start = reinterpret_cast<uintptr_t>(memory);
end = start + num_obj * obj_size;
peak = start;
// Free the objects
u8* cur = reinterpret_cast<u8*>(end);
for (std::size_t i{}; i < num_obj; i++) {
cur -= obj_size;
impl.Free(cur);
}
}
private:
using Impl = impl::SlabHeapImpl;
Impl impl;
uintptr_t peak{};
uintptr_t start{};
uintptr_t end{};
};
template <typename T>
class SlabHeap final : public SlabHeapBase {
public:
constexpr SlabHeap() : SlabHeapBase() {}
void Initialize(void* memory, std::size_t memory_size) {
InitializeImpl(sizeof(T), memory, memory_size);
}
T* Allocate() {
T* obj = reinterpret_cast<T*>(AllocateImpl());
if (obj != nullptr) {
new (obj) T();
}
return obj;
}
void Free(T* obj) {
FreeImpl(obj);
}
constexpr std::size_t GetObjectIndex(const T* obj) const {
return GetObjectIndexImpl(obj);
}
};
} // namespace Kernel::Memory

View file

@ -0,0 +1,41 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <random>
#include "core/hle/kernel/memory/system_control.h"
namespace Kernel::Memory::SystemControl {
u64 GenerateRandomU64ForInit() {
static std::random_device device;
static std::mt19937 gen(device());
static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
return distribution(gen);
}
template <typename F>
u64 GenerateUniformRange(u64 min, u64 max, F f) {
/* Handle the case where the difference is too large to represent. */
if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
return f();
}
/* Iterate until we get a value in range. */
const u64 range_size = ((max + 1) - min);
const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
while (true) {
if (const u64 rnd = f(); rnd < effective_max) {
return min + (rnd % range_size);
}
}
}
u64 GenerateRandomRange(u64 min, u64 max) {
return GenerateUniformRange(min, max, GenerateRandomU64ForInit);
}
} // namespace Kernel::Memory::SystemControl

View file

@ -0,0 +1,18 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_types.h"
namespace Kernel::Memory::SystemControl {
u64 GenerateRandomU64ForInit();
template <typename F>
u64 GenerateUniformRange(u64 min, u64 max, F f);
u64 GenerateRandomRange(u64 min, u64 max);
} // namespace Kernel::Memory::SystemControl

View file

@ -4,6 +4,8 @@
#pragma once
#include <vector>
#include "common/alignment.h"
namespace Kernel {

View file

@ -10,15 +10,18 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/device_memory.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/memory_block_manager.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/memory/slab_heap.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
#include "core/settings.h"
@ -31,10 +34,8 @@ namespace {
* @param kernel The kernel instance to create the main thread under.
* @param priority The priority to give the main thread
*/
void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) {
const auto& vm_manager = owner_process.VMManager();
const VAddr entry_point = vm_manager.GetCodeRegionBaseAddress();
const VAddr stack_top = vm_manager.GetTLSIORegionEndAddress();
void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority, VAddr stack_top) {
const VAddr entry_point = owner_process.PageTable().GetCodeRegionStart();
auto thread_res = Thread::Create(kernel, "main", entry_point, priority, 0,
owner_process.GetIdealCore(), stack_top, owner_process);
@ -42,6 +43,8 @@ void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) {
// Register 1 must be a handle to the main thread
const Handle thread_handle = owner_process.GetHandleTable().Create(thread).Unwrap();
thread->GetContext32().cpu_registers[0] = 0;
thread->GetContext64().cpu_registers[0] = 0;
thread->GetContext32().cpu_registers[1] = thread_handle;
thread->GetContext64().cpu_registers[1] = thread_handle;
@ -57,7 +60,8 @@ void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) {
// (whichever page happens to have an available slot).
class TLSPage {
public:
static constexpr std::size_t num_slot_entries = Memory::PAGE_SIZE / Memory::TLS_ENTRY_SIZE;
static constexpr std::size_t num_slot_entries =
Core::Memory::PAGE_SIZE / Core::Memory::TLS_ENTRY_SIZE;
explicit TLSPage(VAddr address) : base_address{address} {}
@ -76,7 +80,7 @@ public:
}
is_slot_used[i] = true;
return base_address + (i * Memory::TLS_ENTRY_SIZE);
return base_address + (i * Core::Memory::TLS_ENTRY_SIZE);
}
return std::nullopt;
@ -86,15 +90,15 @@ public:
// Ensure that all given addresses are consistent with how TLS pages
// are intended to be used when releasing slots.
ASSERT(IsWithinPage(address));
ASSERT((address % Memory::TLS_ENTRY_SIZE) == 0);
ASSERT((address % Core::Memory::TLS_ENTRY_SIZE) == 0);
const std::size_t index = (address - base_address) / Memory::TLS_ENTRY_SIZE;
const std::size_t index = (address - base_address) / Core::Memory::TLS_ENTRY_SIZE;
is_slot_used[index] = false;
}
private:
bool IsWithinPage(VAddr address) const {
return base_address <= address && address < base_address + Memory::PAGE_SIZE;
return base_address <= address && address < base_address + Core::Memory::PAGE_SIZE;
}
VAddr base_address;
@ -106,7 +110,7 @@ std::shared_ptr<Process> Process::Create(Core::System& system, std::string name,
std::shared_ptr<Process> process = std::make_shared<Process>(system);
process->name = std::move(name);
process->resource_limit = kernel.GetSystemResourceLimit();
process->resource_limit = ResourceLimit::Create(kernel);
process->status = ProcessStatus::Created;
process->program_id = 0;
process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID()
@ -127,7 +131,14 @@ std::shared_ptr<ResourceLimit> Process::GetResourceLimit() const {
}
u64 Process::GetTotalPhysicalMemoryAvailable() const {
return vm_manager.GetTotalPhysicalMemoryAvailable();
const u64 capacity{resource_limit->GetCurrentResourceValue(ResourceType::PhysicalMemory) +
page_table->GetTotalHeapSize() + image_size + main_thread_stack_size};
if (capacity < memory_usage_capacity) {
return capacity;
}
return memory_usage_capacity;
}
u64 Process::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const {
@ -135,8 +146,7 @@ u64 Process::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const {
}
u64 Process::GetTotalPhysicalMemoryUsed() const {
return vm_manager.GetCurrentHeapSize() + main_thread_stack_size + code_memory_size +
GetSystemResourceUsage();
return image_size + main_thread_stack_size + page_table->GetTotalHeapSize();
}
u64 Process::GetTotalPhysicalMemoryUsedWithoutSystemResource() const {
@ -209,33 +219,82 @@ ResultCode Process::ClearSignalState() {
return RESULT_SUCCESS;
}
ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata) {
ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
std::size_t code_size) {
program_id = metadata.GetTitleID();
ideal_core = metadata.GetMainThreadCore();
is_64bit_process = metadata.Is64BitProgram();
system_resource_size = metadata.GetSystemResourceSize();
image_size = code_size;
vm_manager.Reset(metadata.GetAddressSpaceType());
const auto& caps = metadata.GetKernelCapabilities();
const auto capability_init_result =
capabilities.InitializeForUserProcess(caps.data(), caps.size(), vm_manager);
if (capability_init_result.IsError()) {
return capability_init_result;
// Initialize proces address space
if (const ResultCode result{
page_table->InitializeForProcess(metadata.GetAddressSpaceType(), false, 0x8000000,
code_size, Memory::MemoryManager::Pool::Application)};
result.IsError()) {
return result;
}
// Map process code region
if (const ResultCode result{page_table->MapProcessCode(
page_table->GetCodeRegionStart(), code_size / Memory::PageSize,
Memory::MemoryState::Code, Memory::MemoryPermission::None)};
result.IsError()) {
return result;
}
// Initialize process capabilities
const auto& caps{metadata.GetKernelCapabilities()};
if (const ResultCode result{
capabilities.InitializeForUserProcess(caps.data(), caps.size(), *page_table)};
result.IsError()) {
return result;
}
// Set memory usage capacity
switch (metadata.GetAddressSpaceType()) {
case FileSys::ProgramAddressSpaceType::Is32Bit:
case FileSys::ProgramAddressSpaceType::Is36Bit:
case FileSys::ProgramAddressSpaceType::Is39Bit:
memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart();
break;
case FileSys::ProgramAddressSpaceType::Is32BitNoMap:
memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart() +
page_table->GetAliasRegionEnd() - page_table->GetAliasRegionStart();
break;
default:
UNREACHABLE();
}
// Set initial resource limits
resource_limit->SetLimitValue(
ResourceType::PhysicalMemory,
kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application));
resource_limit->SetLimitValue(ResourceType::Threads, 608);
resource_limit->SetLimitValue(ResourceType::Events, 700);
resource_limit->SetLimitValue(ResourceType::TransferMemory, 128);
resource_limit->SetLimitValue(ResourceType::Sessions, 894);
ASSERT(resource_limit->Reserve(ResourceType::PhysicalMemory, code_size));
// Create TLS region
tls_region_address = CreateTLSRegion();
return handle_table.SetSize(capabilities.GetHandleTableSize());
}
void Process::Run(s32 main_thread_priority, u64 stack_size) {
AllocateMainThreadStack(stack_size);
tls_region_address = CreateTLSRegion();
vm_manager.LogLayout();
const std::size_t heap_capacity{memory_usage_capacity - main_thread_stack_size - image_size};
ASSERT(!page_table->SetHeapCapacity(heap_capacity).IsError());
ChangeStatus(ProcessStatus::Running);
SetupMainThread(*this, kernel, main_thread_priority);
SetupMainThread(*this, kernel, main_thread_priority, main_thread_stack_top);
resource_limit->Reserve(ResourceType::Threads, 1);
resource_limit->Reserve(ResourceType::PhysicalMemory, main_thread_stack_size);
}
void Process::PrepareForTermination() {
@ -279,32 +338,37 @@ static auto FindTLSPageWithAvailableSlots(std::vector<TLSPage>& tls_pages) {
}
VAddr Process::CreateTLSRegion() {
auto tls_page_iter = FindTLSPageWithAvailableSlots(tls_pages);
if (auto tls_page_iter{FindTLSPageWithAvailableSlots(tls_pages)};
tls_page_iter != tls_pages.cend()) {
return *tls_page_iter->ReserveSlot();
}
if (tls_page_iter == tls_pages.cend()) {
const auto region_address =
vm_manager.FindFreeRegion(vm_manager.GetTLSIORegionBaseAddress(),
vm_manager.GetTLSIORegionEndAddress(), Memory::PAGE_SIZE);
ASSERT(region_address.Succeeded());
Memory::Page* const tls_page_ptr{kernel.GetUserSlabHeapPages().Allocate()};
ASSERT(tls_page_ptr);
const auto map_result = vm_manager.MapMemoryBlock(
*region_address, std::make_shared<PhysicalMemory>(Memory::PAGE_SIZE), 0,
Memory::PAGE_SIZE, MemoryState::ThreadLocal);
ASSERT(map_result.Succeeded());
const VAddr start{page_table->GetKernelMapRegionStart()};
const VAddr size{page_table->GetKernelMapRegionEnd() - start};
const PAddr tls_map_addr{system.DeviceMemory().GetPhysicalAddr(tls_page_ptr)};
const VAddr tls_page_addr{
page_table
->AllocateAndMapMemory(1, Memory::PageSize, true, start, size / Memory::PageSize,
Memory::MemoryState::ThreadLocal,
Memory::MemoryPermission::ReadAndWrite, tls_map_addr)
.ValueOr(0)};
tls_pages.emplace_back(*region_address);
ASSERT(tls_page_addr);
const auto reserve_result = tls_pages.back().ReserveSlot();
std::memset(tls_page_ptr, 0, Memory::PageSize);
tls_pages.emplace_back(tls_page_addr);
const auto reserve_result{tls_pages.back().ReserveSlot()};
ASSERT(reserve_result.has_value());
return *reserve_result;
}
return *tls_page_iter->ReserveSlot();
}
void Process::FreeTLSRegion(VAddr tls_address) {
const VAddr aligned_address = Common::AlignDown(tls_address, Memory::PAGE_SIZE);
const VAddr aligned_address = Common::AlignDown(tls_address, Core::Memory::PAGE_SIZE);
auto iter =
std::find_if(tls_pages.begin(), tls_pages.end(), [aligned_address](const auto& page) {
return page.GetBaseAddress() == aligned_address;
@ -317,28 +381,22 @@ void Process::FreeTLSRegion(VAddr tls_address) {
iter->ReleaseSlot(tls_address);
}
void Process::LoadModule(CodeSet module_, VAddr base_addr) {
code_memory_size += module_.memory.size();
const auto memory = std::make_shared<PhysicalMemory>(std::move(module_.memory));
const auto MapSegment = [&](const CodeSet::Segment& segment, VMAPermission permissions,
MemoryState memory_state) {
const auto vma = vm_manager
.MapMemoryBlock(segment.addr + base_addr, memory, segment.offset,
segment.size, memory_state)
.Unwrap();
vm_manager.Reprotect(vma, permissions);
void Process::LoadModule(CodeSet code_set, VAddr base_addr) {
const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
Memory::MemoryPermission permission) {
page_table->SetCodeMemoryPermission(segment.addr + base_addr, segment.size, permission);
};
// Map CodeSet segments
MapSegment(module_.CodeSegment(), VMAPermission::ReadExecute, MemoryState::Code);
MapSegment(module_.RODataSegment(), VMAPermission::Read, MemoryState::CodeData);
MapSegment(module_.DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeData);
system.Memory().WriteBlock(*this, base_addr, code_set.memory.data(), code_set.memory.size());
ReprotectSegment(code_set.CodeSegment(), Memory::MemoryPermission::ReadAndExecute);
ReprotectSegment(code_set.RODataSegment(), Memory::MemoryPermission::Read);
ReprotectSegment(code_set.DataSegment(), Memory::MemoryPermission::ReadAndWrite);
}
Process::Process(Core::System& system)
: SynchronizationObject{system.Kernel()}, vm_manager{system},
: SynchronizationObject{system.Kernel()}, page_table{std::make_unique<Memory::PageTable>(
system)},
address_arbiter{system}, mutex{system}, system{system} {}
Process::~Process() = default;
@ -361,16 +419,24 @@ void Process::ChangeStatus(ProcessStatus new_status) {
Signal();
}
void Process::AllocateMainThreadStack(u64 stack_size) {
// The kernel always ensures that the given stack size is page aligned.
main_thread_stack_size = Common::AlignUp(stack_size, Memory::PAGE_SIZE);
ResultCode Process::AllocateMainThreadStack(std::size_t stack_size) {
ASSERT(stack_size);
// Allocate and map the main thread stack
const VAddr mapping_address = vm_manager.GetTLSIORegionEndAddress() - main_thread_stack_size;
vm_manager
.MapMemoryBlock(mapping_address, std::make_shared<PhysicalMemory>(main_thread_stack_size),
0, main_thread_stack_size, MemoryState::Stack)
.Unwrap();
// The kernel always ensures that the given stack size is page aligned.
main_thread_stack_size = Common::AlignUp(stack_size, Memory::PageSize);
const VAddr start{page_table->GetStackRegionStart()};
const std::size_t size{page_table->GetStackRegionEnd() - start};
CASCADE_RESULT(main_thread_stack_top,
page_table->AllocateAndMapMemory(
main_thread_stack_size / Memory::PageSize, Memory::PageSize, false, start,
size / Memory::PageSize, Memory::MemoryState::Stack,
Memory::MemoryPermission::ReadAndWrite));
main_thread_stack_top += main_thread_stack_size;
return RESULT_SUCCESS;
}
} // namespace Kernel

View file

@ -16,7 +16,6 @@
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/process_capability.h"
#include "core/hle/kernel/synchronization_object.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/result.h"
namespace Core {
@ -36,6 +35,10 @@ class TLSPage;
struct CodeSet;
namespace Memory {
class PageTable;
}
enum class MemoryRegion : u16 {
APPLICATION = 1,
SYSTEM = 2,
@ -100,14 +103,14 @@ public:
return HANDLE_TYPE;
}
/// Gets a reference to the process' memory manager.
Kernel::VMManager& VMManager() {
return vm_manager;
/// Gets a reference to the process' page table.
Memory::PageTable& PageTable() {
return *page_table;
}
/// Gets a const reference to the process' memory manager.
const Kernel::VMManager& VMManager() const {
return vm_manager;
/// Gets const a reference to the process' page table.
const Memory::PageTable& PageTable() const {
return *page_table;
}
/// Gets a reference to the process' handle table.
@ -273,7 +276,7 @@ public:
* @returns RESULT_SUCCESS if all relevant metadata was able to be
* loaded and parsed. Otherwise, an error code is returned.
*/
ResultCode LoadFromMetadata(const FileSys::ProgramMetadata& metadata);
ResultCode LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size);
/**
* Starts the main application thread for this process.
@ -289,7 +292,7 @@ public:
*/
void PrepareForTermination();
void LoadModule(CodeSet module_, VAddr base_addr);
void LoadModule(CodeSet code_set, VAddr base_addr);
///////////////////////////////////////////////////////////////////////////////////////////////
// Thread-local storage management
@ -313,16 +316,10 @@ private:
void ChangeStatus(ProcessStatus new_status);
/// Allocates the main thread stack for the process, given the stack size in bytes.
void AllocateMainThreadStack(u64 stack_size);
ResultCode AllocateMainThreadStack(std::size_t stack_size);
/// Memory manager for this process.
Kernel::VMManager vm_manager;
/// Size of the main thread's stack in bytes.
u64 main_thread_stack_size = 0;
/// Size of the loaded code memory in bytes.
u64 code_memory_size = 0;
/// Memory manager for this process
std::unique_ptr<Memory::PageTable> page_table;
/// Current status of the process
ProcessStatus status{};
@ -390,6 +387,18 @@ private:
/// Name of this process
std::string name;
/// Address of the top of the main thread's stack
VAddr main_thread_stack_top{};
/// Size of the main thread's stack
std::size_t main_thread_stack_size{};
/// Memory usage capacity for the process
std::size_t memory_usage_capacity{};
/// Process total image size
std::size_t image_size{};
};
} // namespace Kernel

View file

@ -5,8 +5,8 @@
#include "common/bit_util.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process_capability.h"
#include "core/hle/kernel/vm_manager.h"
namespace Kernel {
namespace {
@ -66,7 +66,7 @@ u32 GetFlagBitOffset(CapabilityType type) {
ResultCode ProcessCapabilities::InitializeForKernelProcess(const u32* capabilities,
std::size_t num_capabilities,
VMManager& vm_manager) {
Memory::PageTable& page_table) {
Clear();
// Allow all cores and priorities.
@ -74,15 +74,15 @@ ResultCode ProcessCapabilities::InitializeForKernelProcess(const u32* capabiliti
priority_mask = 0xFFFFFFFFFFFFFFFF;
kernel_version = PackedKernelVersion;
return ParseCapabilities(capabilities, num_capabilities, vm_manager);
return ParseCapabilities(capabilities, num_capabilities, page_table);
}
ResultCode ProcessCapabilities::InitializeForUserProcess(const u32* capabilities,
std::size_t num_capabilities,
VMManager& vm_manager) {
Memory::PageTable& page_table) {
Clear();
return ParseCapabilities(capabilities, num_capabilities, vm_manager);
return ParseCapabilities(capabilities, num_capabilities, page_table);
}
void ProcessCapabilities::InitializeForMetadatalessProcess() {
@ -105,7 +105,7 @@ void ProcessCapabilities::InitializeForMetadatalessProcess() {
ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities,
std::size_t num_capabilities,
VMManager& vm_manager) {
Memory::PageTable& page_table) {
u32 set_flags = 0;
u32 set_svc_bits = 0;
@ -127,13 +127,13 @@ ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities,
return ERR_INVALID_COMBINATION;
}
const auto result = HandleMapPhysicalFlags(descriptor, size_flags, vm_manager);
const auto result = HandleMapPhysicalFlags(descriptor, size_flags, page_table);
if (result.IsError()) {
return result;
}
} else {
const auto result =
ParseSingleFlagCapability(set_flags, set_svc_bits, descriptor, vm_manager);
ParseSingleFlagCapability(set_flags, set_svc_bits, descriptor, page_table);
if (result.IsError()) {
return result;
}
@ -144,7 +144,7 @@ ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities,
}
ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits,
u32 flag, VMManager& vm_manager) {
u32 flag, Memory::PageTable& page_table) {
const auto type = GetCapabilityType(flag);
if (type == CapabilityType::Unset) {
@ -172,7 +172,7 @@ ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& s
case CapabilityType::Syscall:
return HandleSyscallFlags(set_svc_bits, flag);
case CapabilityType::MapIO:
return HandleMapIOFlags(flag, vm_manager);
return HandleMapIOFlags(flag, page_table);
case CapabilityType::Interrupt:
return HandleInterruptFlags(flag);
case CapabilityType::ProgramType:
@ -269,12 +269,12 @@ ResultCode ProcessCapabilities::HandleSyscallFlags(u32& set_svc_bits, u32 flags)
}
ResultCode ProcessCapabilities::HandleMapPhysicalFlags(u32 flags, u32 size_flags,
VMManager& vm_manager) {
Memory::PageTable& page_table) {
// TODO(Lioncache): Implement once the memory manager can handle this.
return RESULT_SUCCESS;
}
ResultCode ProcessCapabilities::HandleMapIOFlags(u32 flags, VMManager& vm_manager) {
ResultCode ProcessCapabilities::HandleMapIOFlags(u32 flags, Memory::PageTable& page_table) {
// TODO(Lioncache): Implement once the memory manager can handle this.
return RESULT_SUCCESS;
}

View file

@ -12,7 +12,9 @@ union ResultCode;
namespace Kernel {
class VMManager;
namespace Memory {
class PageTable;
}
/// The possible types of programs that may be indicated
/// by the program type capability descriptor.
@ -81,27 +83,27 @@ public:
///
/// @param capabilities The capabilities to parse
/// @param num_capabilities The number of capabilities to parse.
/// @param vm_manager The memory manager to use for handling any mapping-related
/// @param page_table The memory manager to use for handling any mapping-related
/// operations (such as mapping IO memory, etc).
///
/// @returns RESULT_SUCCESS if this capabilities instance was able to be initialized,
/// otherwise, an error code upon failure.
///
ResultCode InitializeForKernelProcess(const u32* capabilities, std::size_t num_capabilities,
VMManager& vm_manager);
Memory::PageTable& page_table);
/// Initializes this process capabilities instance for a userland process.
///
/// @param capabilities The capabilities to parse.
/// @param num_capabilities The total number of capabilities to parse.
/// @param vm_manager The memory manager to use for handling any mapping-related
/// @param page_table The memory manager to use for handling any mapping-related
/// operations (such as mapping IO memory, etc).
///
/// @returns RESULT_SUCCESS if this capabilities instance was able to be initialized,
/// otherwise, an error code upon failure.
///
ResultCode InitializeForUserProcess(const u32* capabilities, std::size_t num_capabilities,
VMManager& vm_manager);
Memory::PageTable& page_table);
/// Initializes this process capabilities instance for a process that does not
/// have any metadata to parse.
@ -181,13 +183,13 @@ private:
///
/// @param capabilities The sequence of capability descriptors to parse.
/// @param num_capabilities The number of descriptors within the given sequence.
/// @param vm_manager The memory manager that will perform any memory
/// @param page_table The memory manager that will perform any memory
/// mapping if necessary.
///
/// @return RESULT_SUCCESS if no errors occur, otherwise an error code.
///
ResultCode ParseCapabilities(const u32* capabilities, std::size_t num_capabilities,
VMManager& vm_manager);
Memory::PageTable& page_table);
/// Attempts to parse a capability descriptor that is only represented by a
/// single flag set.
@ -196,13 +198,13 @@ private:
/// flags being initialized more than once when they shouldn't be.
/// @param set_svc_bits Running set of bits representing the allowed supervisor calls mask.
/// @param flag The flag to attempt to parse.
/// @param vm_manager The memory manager that will perform any memory
/// @param page_table The memory manager that will perform any memory
/// mapping if necessary.
///
/// @return RESULT_SUCCESS if no errors occurred, otherwise an error code.
///
ResultCode ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits, u32 flag,
VMManager& vm_manager);
Memory::PageTable& page_table);
/// Clears the internal state of this process capability instance. Necessary,
/// to have a sane starting point due to us allowing running executables without
@ -226,10 +228,10 @@ private:
ResultCode HandleSyscallFlags(u32& set_svc_bits, u32 flags);
/// Handles flags related to mapping physical memory pages.
ResultCode HandleMapPhysicalFlags(u32 flags, u32 size_flags, VMManager& vm_manager);
ResultCode HandleMapPhysicalFlags(u32 flags, u32 size_flags, Memory::PageTable& page_table);
/// Handles flags related to mapping IO pages.
ResultCode HandleMapIOFlags(u32 flags, VMManager& vm_manager);
ResultCode HandleMapIOFlags(u32 flags, Memory::PageTable& page_table);
/// Handles flags related to the interrupt capability flags.
ResultCode HandleInterruptFlags(u32 flags);

View file

@ -16,26 +16,60 @@ constexpr std::size_t ResourceTypeToIndex(ResourceType type) {
ResourceLimit::ResourceLimit(KernelCore& kernel) : Object{kernel} {}
ResourceLimit::~ResourceLimit() = default;
bool ResourceLimit::Reserve(ResourceType resource, s64 amount) {
return Reserve(resource, amount, 10000000000);
}
bool ResourceLimit::Reserve(ResourceType resource, s64 amount, u64 timeout) {
const std::size_t index{ResourceTypeToIndex(resource)};
s64 new_value = current[index] + amount;
while (new_value > limit[index] && available[index] + amount <= limit[index]) {
// TODO(bunnei): This is wrong for multicore, we should wait the calling thread for timeout
new_value = current[index] + amount;
if (timeout >= 0) {
break;
}
}
if (new_value <= limit[index]) {
current[index] = new_value;
return true;
}
return false;
}
void ResourceLimit::Release(ResourceType resource, u64 amount) {
Release(resource, amount, amount);
}
void ResourceLimit::Release(ResourceType resource, u64 used_amount, u64 available_amount) {
const std::size_t index{ResourceTypeToIndex(resource)};
current[index] -= used_amount;
available[index] -= available_amount;
}
std::shared_ptr<ResourceLimit> ResourceLimit::Create(KernelCore& kernel) {
return std::make_shared<ResourceLimit>(kernel);
}
s64 ResourceLimit::GetCurrentResourceValue(ResourceType resource) const {
return values.at(ResourceTypeToIndex(resource));
return limit.at(ResourceTypeToIndex(resource)) - current.at(ResourceTypeToIndex(resource));
}
s64 ResourceLimit::GetMaxResourceValue(ResourceType resource) const {
return limits.at(ResourceTypeToIndex(resource));
return limit.at(ResourceTypeToIndex(resource));
}
ResultCode ResourceLimit::SetLimitValue(ResourceType resource, s64 value) {
const auto index = ResourceTypeToIndex(resource);
if (value < values[index]) {
const std::size_t index{ResourceTypeToIndex(resource)};
if (current[index] <= value) {
limit[index] = value;
return RESULT_SUCCESS;
} else {
return ERR_INVALID_STATE;
}
values[index] = value;
return RESULT_SUCCESS;
}
} // namespace Kernel

View file

@ -51,6 +51,11 @@ public:
return HANDLE_TYPE;
}
bool Reserve(ResourceType resource, s64 amount);
bool Reserve(ResourceType resource, s64 amount, u64 timeout);
void Release(ResourceType resource, u64 amount);
void Release(ResourceType resource, u64 used_amount, u64 available_amount);
/**
* Gets the current value for the specified resource.
* @param resource Requested resource type
@ -91,10 +96,9 @@ private:
using ResourceArray =
std::array<s64, static_cast<std::size_t>(ResourceType::ResourceTypeCount)>;
/// Maximum values a resource type may reach.
ResourceArray limits{};
/// Current resource limit values.
ResourceArray values{};
ResourceArray limit{};
ResourceArray current{};
ResourceArray available{};
};
} // namespace Kernel

View file

@ -134,7 +134,8 @@ ResultCode ServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& con
return RESULT_SUCCESS;
}
ResultCode ServerSession::QueueSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory) {
ResultCode ServerSession::QueueSyncRequest(std::shared_ptr<Thread> thread,
Core::Memory::Memory& memory) {
u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(thread->GetTLSAddress()))};
std::shared_ptr<Kernel::HLERequestContext> context{
std::make_shared<Kernel::HLERequestContext>(SharedFrom(this), std::move(thread))};
@ -178,7 +179,7 @@ ResultCode ServerSession::CompleteSyncRequest() {
}
ResultCode ServerSession::HandleSyncRequest(std::shared_ptr<Thread> thread,
Memory::Memory& memory) {
Core::Memory::Memory& memory) {
Core::System::GetInstance().CoreTiming().ScheduleEvent(20000, request_event, {});
return QueueSyncRequest(std::move(thread), memory);
}

View file

@ -13,7 +13,7 @@
#include "core/hle/kernel/synchronization_object.h"
#include "core/hle/result.h"
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -92,7 +92,7 @@ public:
*
* @returns ResultCode from the operation.
*/
ResultCode HandleSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory);
ResultCode HandleSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory);
bool ShouldWait(const Thread* thread) const override;
@ -126,7 +126,7 @@ public:
private:
/// Queues a sync request from the emulated application.
ResultCode QueueSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory);
ResultCode QueueSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory);
/// Completes a sync request from the emulated application.
ResultCode CompleteSyncRequest();

View file

@ -2,149 +2,56 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <utility>
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/hle/kernel/errors.h"
#include "core/core.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/shared_memory.h"
namespace Kernel {
SharedMemory::SharedMemory(KernelCore& kernel) : Object{kernel} {}
SharedMemory::SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory)
: Object{kernel}, device_memory{device_memory} {}
SharedMemory::~SharedMemory() = default;
std::shared_ptr<SharedMemory> SharedMemory::Create(KernelCore& kernel, Process* owner_process,
u64 size, MemoryPermission permissions,
MemoryPermission other_permissions,
VAddr address, MemoryRegion region,
std::shared_ptr<SharedMemory> SharedMemory::Create(
KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process,
Memory::PageLinkedList&& page_list, Memory::MemoryPermission owner_permission,
Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size,
std::string name) {
std::shared_ptr<SharedMemory> shared_memory = std::make_shared<SharedMemory>(kernel);
std::shared_ptr<SharedMemory> shared_memory{
std::make_shared<SharedMemory>(kernel, device_memory)};
shared_memory->owner_process = owner_process;
shared_memory->name = std::move(name);
shared_memory->page_list = std::move(page_list);
shared_memory->owner_permission = owner_permission;
shared_memory->user_permission = user_permission;
shared_memory->physical_address = physical_address;
shared_memory->size = size;
shared_memory->permissions = permissions;
shared_memory->other_permissions = other_permissions;
if (address == 0) {
shared_memory->backing_block = std::make_shared<Kernel::PhysicalMemory>(size);
shared_memory->backing_block_offset = 0;
// Refresh the address mappings for the current process.
if (kernel.CurrentProcess() != nullptr) {
kernel.CurrentProcess()->VMManager().RefreshMemoryBlockMappings(
shared_memory->backing_block.get());
}
} else {
const auto& vm_manager = shared_memory->owner_process->VMManager();
// The memory is already available and mapped in the owner process.
const auto vma = vm_manager.FindVMA(address);
ASSERT_MSG(vm_manager.IsValidHandle(vma), "Invalid memory address");
ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address");
// The returned VMA might be a bigger one encompassing the desired address.
const auto vma_offset = address - vma->first;
ASSERT_MSG(vma_offset + size <= vma->second.size,
"Shared memory exceeds bounds of mapped block");
shared_memory->backing_block = vma->second.backing_block;
shared_memory->backing_block_offset = vma->second.offset + vma_offset;
}
shared_memory->base_address = address;
shared_memory->name = name;
return shared_memory;
}
std::shared_ptr<SharedMemory> SharedMemory::CreateForApplet(
KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset,
u64 size, MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
std::shared_ptr<SharedMemory> shared_memory = std::make_shared<SharedMemory>(kernel);
ResultCode SharedMemory::Map(Process& target_process, VAddr address, std::size_t size,
Memory::MemoryPermission permission) {
const u64 page_count{(size + Memory::PageSize - 1) / Memory::PageSize};
shared_memory->owner_process = nullptr;
shared_memory->name = std::move(name);
shared_memory->size = size;
shared_memory->permissions = permissions;
shared_memory->other_permissions = other_permissions;
shared_memory->backing_block = std::move(heap_block);
shared_memory->backing_block_offset = offset;
shared_memory->base_address =
kernel.CurrentProcess()->VMManager().GetHeapRegionBaseAddress() + offset;
return shared_memory;
}
ResultCode SharedMemory::Map(Process& target_process, VAddr address, MemoryPermission permissions,
MemoryPermission other_permissions) {
const MemoryPermission own_other_permissions =
&target_process == owner_process ? this->permissions : this->other_permissions;
// Automatically allocated memory blocks can only be mapped with other_permissions = DontCare
if (base_address == 0 && other_permissions != MemoryPermission::DontCare) {
return ERR_INVALID_MEMORY_PERMISSIONS;
if (page_list.GetNumPages() != page_count) {
UNIMPLEMENTED_MSG("Page count does not match");
}
// Error out if the requested permissions don't match what the creator process allows.
if (static_cast<u32>(permissions) & ~static_cast<u32>(own_other_permissions)) {
LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
GetObjectId(), address, name);
return ERR_INVALID_MEMORY_PERMISSIONS;
Memory::MemoryPermission expected =
&target_process == owner_process ? owner_permission : user_permission;
if (permission != expected) {
UNIMPLEMENTED_MSG("Permission does not match");
}
// Error out if the provided permissions are not compatible with what the creator process needs.
if (other_permissions != MemoryPermission::DontCare &&
static_cast<u32>(this->permissions) & ~static_cast<u32>(other_permissions)) {
LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
GetObjectId(), address, name);
return ERR_INVALID_MEMORY_PERMISSIONS;
}
VAddr target_address = address;
// Map the memory block into the target process
auto result = target_process.VMManager().MapMemoryBlock(
target_address, backing_block, backing_block_offset, size, MemoryState::Shared);
if (result.Failed()) {
LOG_ERROR(
Kernel,
"cannot map id={}, target_address=0x{:X} name={}, error mapping to virtual memory",
GetObjectId(), target_address, name);
return result.Code();
}
return target_process.VMManager().ReprotectRange(target_address, size,
ConvertPermissions(permissions));
}
ResultCode SharedMemory::Unmap(Process& target_process, VAddr address, u64 unmap_size) {
if (unmap_size != size) {
LOG_ERROR(Kernel,
"Invalid size passed to Unmap. Size must be equal to the size of the "
"memory managed. Shared memory size=0x{:016X}, Unmap size=0x{:016X}",
size, unmap_size);
return ERR_INVALID_SIZE;
}
// TODO(Subv): Verify what happens if the application tries to unmap an address that is not
// mapped to a SharedMemory.
return target_process.VMManager().UnmapRange(address, size);
}
VMAPermission SharedMemory::ConvertPermissions(MemoryPermission permission) {
u32 masked_permissions =
static_cast<u32>(permission) & static_cast<u32>(MemoryPermission::ReadWriteExecute);
return static_cast<VMAPermission>(masked_permissions);
}
u8* SharedMemory::GetPointer(std::size_t offset) {
return backing_block->data() + backing_block_offset + offset;
}
const u8* SharedMemory::GetPointer(std::size_t offset) const {
return backing_block->data() + backing_block_offset + offset;
return target_process.PageTable().MapPages(address, page_list, Memory::MemoryState::Shared,
permission);
}
} // namespace Kernel

View file

@ -8,8 +8,10 @@
#include <string>
#include "common/common_types.h"
#include "core/device_memory.h"
#include "core/hle/kernel/memory/memory_block.h"
#include "core/hle/kernel/memory/page_linked_list.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/kernel/process.h"
#include "core/hle/result.h"
@ -17,63 +19,21 @@ namespace Kernel {
class KernelCore;
/// Permissions for mapped shared memory blocks
enum class MemoryPermission : u32 {
None = 0,
Read = (1u << 0),
Write = (1u << 1),
ReadWrite = (Read | Write),
Execute = (1u << 2),
ReadExecute = (Read | Execute),
WriteExecute = (Write | Execute),
ReadWriteExecute = (Read | Write | Execute),
DontCare = (1u << 28)
};
class SharedMemory final : public Object {
public:
explicit SharedMemory(KernelCore& kernel);
explicit SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory);
~SharedMemory() override;
/**
* Creates a shared memory object.
* @param kernel The kernel instance to create a shared memory instance under.
* @param owner_process Process that created this shared memory object.
* @param size Size of the memory block. Must be page-aligned.
* @param permissions Permission restrictions applied to the process which created the block.
* @param other_permissions Permission restrictions applied to other processes mapping the
* block.
* @param address The address from which to map the Shared Memory.
* @param region If the address is 0, the shared memory will be allocated in this region of the
* linear heap.
* @param name Optional object name, used for debugging purposes.
*/
static std::shared_ptr<SharedMemory> Create(KernelCore& kernel, Process* owner_process,
u64 size, MemoryPermission permissions,
MemoryPermission other_permissions,
VAddr address = 0,
MemoryRegion region = MemoryRegion::BASE,
std::string name = "Unknown");
/**
* Creates a shared memory object from a block of memory managed by an HLE applet.
* @param kernel The kernel instance to create a shared memory instance under.
* @param heap_block Heap block of the HLE applet.
* @param offset The offset into the heap block that the SharedMemory will map.
* @param size Size of the memory block. Must be page-aligned.
* @param permissions Permission restrictions applied to the process which created the block.
* @param other_permissions Permission restrictions applied to other processes mapping the
* block.
* @param name Optional object name, used for debugging purposes.
*/
static std::shared_ptr<SharedMemory> CreateForApplet(
KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset,
u64 size, MemoryPermission permissions, MemoryPermission other_permissions,
std::string name = "Unknown Applet");
static std::shared_ptr<SharedMemory> Create(
KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process,
Memory::PageLinkedList&& page_list, Memory::MemoryPermission owner_permission,
Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size,
std::string name);
std::string GetTypeName() const override {
return "SharedMemory";
}
std::string GetName() const override {
return name;
}
@ -83,71 +43,42 @@ public:
return HANDLE_TYPE;
}
/// Gets the size of the underlying memory block in bytes.
u64 GetSize() const {
return size;
}
/**
* Converts the specified MemoryPermission into the equivalent VMAPermission.
* @param permission The MemoryPermission to convert.
*/
static VMAPermission ConvertPermissions(MemoryPermission permission);
/**
* Maps a shared memory block to an address in the target process' address space
* @param target_process Process on which to map the memory block.
* @param target_process Process on which to map the memory block
* @param address Address in system memory to map shared memory block to
* @param size Size of the shared memory block to map
* @param permissions Memory block map permissions (specified by SVC field)
* @param other_permissions Memory block map other permissions (specified by SVC field)
*/
ResultCode Map(Process& target_process, VAddr address, MemoryPermission permissions,
MemoryPermission other_permissions);
/**
* Unmaps a shared memory block from the specified address in system memory
*
* @param target_process Process from which to unmap the memory block.
* @param address Address in system memory where the shared memory block is mapped.
* @param unmap_size The amount of bytes to unmap from this shared memory instance.
*
* @return Result code of the unmap operation
*
* @pre The given size to unmap must be the same size as the amount of memory managed by
* the SharedMemory instance itself, otherwise ERR_INVALID_SIZE will be returned.
*/
ResultCode Unmap(Process& target_process, VAddr address, u64 unmap_size);
ResultCode Map(Process& target_process, VAddr address, std::size_t size,
Memory::MemoryPermission permission);
/**
* Gets a pointer to the shared memory block
* @param offset Offset from the start of the shared memory block to get pointer
* @return A pointer to the shared memory block from the specified offset
*/
u8* GetPointer(std::size_t offset = 0);
u8* GetPointer(std::size_t offset = 0) {
return device_memory.GetPointer(physical_address + offset);
}
/**
* Gets a constant pointer to the shared memory block
* Gets a pointer to the shared memory block
* @param offset Offset from the start of the shared memory block to get pointer
* @return A constant pointer to the shared memory block from the specified offset
* @return A pointer to the shared memory block from the specified offset
*/
const u8* GetPointer(std::size_t offset = 0) const;
const u8* GetPointer(std::size_t offset = 0) const {
return device_memory.GetPointer(physical_address + offset);
}
private:
/// Backing memory for this shared memory block.
std::shared_ptr<PhysicalMemory> backing_block;
/// Offset into the backing block for this shared memory.
std::size_t backing_block_offset = 0;
/// Size of the memory block. Page-aligned.
u64 size = 0;
/// Permission restrictions applied to the process which created the block.
MemoryPermission permissions{};
/// Permission restrictions applied to other processes mapping the block.
MemoryPermission other_permissions{};
/// Process that created this shared memory block.
Process* owner_process;
/// Address of shared memory block in the owner process if specified.
VAddr base_address = 0;
/// Name of shared memory object.
Core::DeviceMemory& device_memory;
Process* owner_process{};
Memory::PageLinkedList page_list;
Memory::MemoryPermission owner_permission{};
Memory::MemoryPermission user_permission{};
PAddr physical_address{};
std::size_t size{};
std::string name;
};

View file

@ -24,6 +24,8 @@
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/memory_block.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/readable_event.h"
@ -31,6 +33,7 @@
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/svc.h"
#include "core/hle/kernel/svc_types.h"
#include "core/hle/kernel/svc_wrap.h"
#include "core/hle/kernel/synchronization.h"
#include "core/hle/kernel/thread.h"
@ -42,7 +45,7 @@
#include "core/memory.h"
#include "core/reporter.h"
namespace Kernel {
namespace Kernel::Svc {
namespace {
// Checks if address + size is greater than the given address
@ -58,8 +61,8 @@ constexpr u64 MAIN_MEMORY_SIZE = 0x200000000;
// Helper function that performs the common sanity checks for svcMapMemory
// and svcUnmapMemory. This is doable, as both functions perform their sanitizing
// in the same order.
ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_addr, VAddr src_addr,
u64 size) {
ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr dst_addr,
VAddr src_addr, u64 size) {
if (!Common::Is4KBAligned(dst_addr)) {
LOG_ERROR(Kernel_SVC, "Destination address is not aligned to 4KB, 0x{:016X}", dst_addr);
return ERR_INVALID_ADDRESS;
@ -93,36 +96,33 @@ ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_add
return ERR_INVALID_ADDRESS_STATE;
}
if (!vm_manager.IsWithinAddressSpace(src_addr, size)) {
if (!manager.IsInsideAddressSpace(src_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Source is not within the address space, addr=0x{:016X}, size=0x{:016X}",
src_addr, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (!vm_manager.IsWithinStackRegion(dst_addr, size)) {
if (manager.IsOutsideStackRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination is not within the stack region, addr=0x{:016X}, size=0x{:016X}",
dst_addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
const VAddr dst_end_address = dst_addr + size;
if (dst_end_address > vm_manager.GetHeapRegionBaseAddress() &&
vm_manager.GetHeapRegionEndAddress() > dst_addr) {
if (manager.IsInsideHeapRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination does not fit within the heap region, addr=0x{:016X}, "
"size=0x{:016X}, end_addr=0x{:016X}",
dst_addr, size, dst_end_address);
"size=0x{:016X}",
dst_addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
if (dst_end_address > vm_manager.GetMapRegionBaseAddress() &&
vm_manager.GetMapRegionEndAddress() > dst_addr) {
if (manager.IsInsideAliasRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination does not fit within the map region, addr=0x{:016X}, "
"size=0x{:016X}, end_addr=0x{:016X}",
dst_addr, size, dst_end_address);
"size=0x{:016X}",
dst_addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
@ -177,13 +177,10 @@ static ResultCode SetHeapSize(Core::System& system, VAddr* heap_addr, u64 heap_s
return ERR_INVALID_SIZE;
}
auto& vm_manager = system.Kernel().CurrentProcess()->VMManager();
const auto alloc_result = vm_manager.SetHeapSize(heap_size);
if (alloc_result.Failed()) {
return alloc_result.Code();
}
auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
CASCADE_RESULT(*heap_addr, page_table.SetHeapSize(heap_size));
*heap_addr = *alloc_result;
return RESULT_SUCCESS;
}
@ -194,63 +191,6 @@ static ResultCode SetHeapSize32(Core::System& system, u32* heap_addr, u32 heap_s
return result;
}
static ResultCode SetMemoryPermission(Core::System& system, VAddr addr, u64 size, u32 prot) {
LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot);
if (!Common::Is4KBAligned(addr)) {
LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, addr=0x{:016X}", addr);
return ERR_INVALID_ADDRESS;
}
if (size == 0) {
LOG_ERROR(Kernel_SVC, "Size is 0");
return ERR_INVALID_SIZE;
}
if (!Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, size=0x{:016X}", size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(addr, size)) {
LOG_ERROR(Kernel_SVC, "Region is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
addr, size);
return ERR_INVALID_ADDRESS_STATE;
}
const auto permission = static_cast<MemoryPermission>(prot);
if (permission != MemoryPermission::None && permission != MemoryPermission::Read &&
permission != MemoryPermission::ReadWrite) {
LOG_ERROR(Kernel_SVC, "Invalid memory permission specified, Got memory permission=0x{:08X}",
static_cast<u32>(permission));
return ERR_INVALID_MEMORY_PERMISSIONS;
}
auto* const current_process = system.Kernel().CurrentProcess();
auto& vm_manager = current_process->VMManager();
if (!vm_manager.IsWithinAddressSpace(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Source is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
size);
return ERR_INVALID_ADDRESS_STATE;
}
const VMManager::VMAHandle iter = vm_manager.FindVMA(addr);
if (!vm_manager.IsValidHandle(iter)) {
LOG_ERROR(Kernel_SVC, "Unable to find VMA for address=0x{:016X}", addr);
return ERR_INVALID_ADDRESS_STATE;
}
LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented.");
// TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't
// make sense to allow changing permissions on kernel memory itself, etc).
const auto converted_permissions = SharedMemory::ConvertPermissions(permission);
return vm_manager.ReprotectRange(addr, size, converted_permissions);
}
static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 size, u32 mask,
u32 attribute) {
LOG_DEBUG(Kernel_SVC,
@ -274,30 +214,19 @@ static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 si
return ERR_INVALID_ADDRESS_STATE;
}
const auto mem_attribute = static_cast<MemoryAttribute>(attribute);
const auto mem_mask = static_cast<MemoryAttribute>(mask);
const auto attribute_with_mask = mem_attribute | mem_mask;
if (attribute_with_mask != mem_mask) {
const auto attributes{static_cast<Memory::MemoryAttribute>(mask | attribute)};
if (attributes != static_cast<Memory::MemoryAttribute>(mask) ||
(attributes | Memory::MemoryAttribute::Uncached) != Memory::MemoryAttribute::Uncached) {
LOG_ERROR(Kernel_SVC,
"Memory attribute doesn't match the given mask (Attribute: 0x{:X}, Mask: {:X}",
attribute, mask);
return ERR_INVALID_COMBINATION;
}
if ((attribute_with_mask | MemoryAttribute::Uncached) != MemoryAttribute::Uncached) {
LOG_ERROR(Kernel_SVC, "Specified attribute isn't equal to MemoryAttributeUncached (8).");
return ERR_INVALID_COMBINATION;
}
auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
auto& vm_manager = system.Kernel().CurrentProcess()->VMManager();
if (!vm_manager.IsWithinAddressSpace(address, size)) {
LOG_ERROR(Kernel_SVC,
"Given address (0x{:016X}) is outside the bounds of the address space.", address);
return ERR_INVALID_ADDRESS_STATE;
}
return vm_manager.SetMemoryAttribute(address, size, mem_mask, mem_attribute);
return page_table.SetMemoryAttribute(address, size, static_cast<Memory::MemoryAttribute>(mask),
static_cast<Memory::MemoryAttribute>(attribute));
}
/// Maps a memory range into a different range.
@ -305,14 +234,14 @@ static ResultCode MapMemory(Core::System& system, VAddr dst_addr, VAddr src_addr
LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
src_addr, size);
auto& vm_manager = system.Kernel().CurrentProcess()->VMManager();
const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size);
auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
if (result.IsError()) {
if (const ResultCode result{MapUnmapMemorySanityChecks(page_table, dst_addr, src_addr, size)};
result.IsError()) {
return result;
}
return vm_manager.MirrorMemory(dst_addr, src_addr, size, MemoryState::Stack);
return page_table.Map(dst_addr, src_addr, size);
}
/// Unmaps a region that was previously mapped with svcMapMemory
@ -320,21 +249,14 @@ static ResultCode UnmapMemory(Core::System& system, VAddr dst_addr, VAddr src_ad
LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
src_addr, size);
auto& vm_manager = system.Kernel().CurrentProcess()->VMManager();
const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size);
auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
if (result.IsError()) {
if (const ResultCode result{MapUnmapMemorySanityChecks(page_table, dst_addr, src_addr, size)};
result.IsError()) {
return result;
}
const auto unmap_res = vm_manager.UnmapRange(dst_addr, size);
// Reprotect the source mapping on success
if (unmap_res.IsSuccess()) {
ASSERT(vm_manager.ReprotectRange(src_addr, size, VMAPermission::ReadWrite).IsSuccess());
}
return unmap_res;
return page_table.Unmap(dst_addr, src_addr, size);
}
/// Connect to an OS service given the port name, returns the handle to the port to out
@ -367,6 +289,8 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle,
return ERR_NOT_FOUND;
}
ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(ResourceType::Sessions, 1));
auto client_port = it->second;
std::shared_ptr<ClientSession> client_session;
@ -538,7 +462,7 @@ static ResultCode ArbitrateLock(Core::System& system, Handle holding_thread_hand
"requesting_current_thread_handle=0x{:08X}",
holding_thread_handle, mutex_addr, requesting_thread_handle);
if (Memory::IsKernelVirtualAddress(mutex_addr)) {
if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) {
LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}",
mutex_addr);
return ERR_INVALID_ADDRESS_STATE;
@ -558,7 +482,7 @@ static ResultCode ArbitrateLock(Core::System& system, Handle holding_thread_hand
static ResultCode ArbitrateUnlock(Core::System& system, VAddr mutex_addr) {
LOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr);
if (Memory::IsKernelVirtualAddress(mutex_addr)) {
if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) {
LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}",
mutex_addr);
return ERR_INVALID_ADDRESS_STATE;
@ -683,7 +607,6 @@ static void Break(Core::System& system, u32 reason, u64 info1, u64 info2) {
auto* const current_thread = system.CurrentScheduler().GetCurrentThread();
const auto thread_processor_id = current_thread->GetProcessorID();
system.ArmInterface(static_cast<std::size_t>(thread_processor_id)).LogBacktrace();
ASSERT(false);
system.Kernel().CurrentProcess()->PrepareForTermination();
@ -785,35 +708,35 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
return RESULT_SUCCESS;
case GetInfoType::MapRegionBaseAddr:
*result = process->VMManager().GetMapRegionBaseAddress();
*result = process->PageTable().GetAliasRegionStart();
return RESULT_SUCCESS;
case GetInfoType::MapRegionSize:
*result = process->VMManager().GetMapRegionSize();
*result = process->PageTable().GetAliasRegionSize();
return RESULT_SUCCESS;
case GetInfoType::HeapRegionBaseAddr:
*result = process->VMManager().GetHeapRegionBaseAddress();
*result = process->PageTable().GetHeapRegionStart();
return RESULT_SUCCESS;
case GetInfoType::HeapRegionSize:
*result = process->VMManager().GetHeapRegionSize();
*result = process->PageTable().GetHeapRegionSize();
return RESULT_SUCCESS;
case GetInfoType::ASLRRegionBaseAddr:
*result = process->VMManager().GetASLRRegionBaseAddress();
*result = process->PageTable().GetAliasCodeRegionStart();
return RESULT_SUCCESS;
case GetInfoType::ASLRRegionSize:
*result = process->VMManager().GetASLRRegionSize();
*result = process->PageTable().GetAliasCodeRegionSize();
return RESULT_SUCCESS;
case GetInfoType::StackRegionBaseAddr:
*result = process->VMManager().GetStackRegionBaseAddress();
*result = process->PageTable().GetStackRegionStart();
return RESULT_SUCCESS;
case GetInfoType::StackRegionSize:
*result = process->VMManager().GetStackRegionSize();
*result = process->PageTable().GetStackRegionSize();
return RESULT_SUCCESS;
case GetInfoType::TotalPhysicalMemoryAvailable:
@ -987,20 +910,29 @@ static ResultCode MapPhysicalMemory(Core::System& system, VAddr addr, u64 size)
return ERR_INVALID_MEMORY_RANGE;
}
Process* const current_process = system.Kernel().CurrentProcess();
auto& vm_manager = current_process->VMManager();
Process* const current_process{system.Kernel().CurrentProcess()};
auto& page_table{current_process->PageTable()};
if (current_process->GetSystemResourceSize() == 0) {
LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
return ERR_INVALID_STATE;
}
if (!vm_manager.IsWithinMapRegion(addr, size)) {
LOG_ERROR(Kernel_SVC, "Range not within map region");
if (!page_table.IsInsideAddressSpace(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
size);
return ERR_INVALID_MEMORY_RANGE;
}
return vm_manager.MapPhysicalMemory(addr, size);
if (page_table.IsOutsideAliasRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
size);
return ERR_INVALID_MEMORY_RANGE;
}
return page_table.MapPhysicalMemory(addr, size);
}
/// Unmaps memory previously mapped via MapPhysicalMemory
@ -1027,20 +959,29 @@ static ResultCode UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size
return ERR_INVALID_MEMORY_RANGE;
}
Process* const current_process = system.Kernel().CurrentProcess();
auto& vm_manager = current_process->VMManager();
Process* const current_process{system.Kernel().CurrentProcess()};
auto& page_table{current_process->PageTable()};
if (current_process->GetSystemResourceSize() == 0) {
LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
return ERR_INVALID_STATE;
}
if (!vm_manager.IsWithinMapRegion(addr, size)) {
LOG_ERROR(Kernel_SVC, "Range not within map region");
if (!page_table.IsInsideAddressSpace(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
size);
return ERR_INVALID_MEMORY_RANGE;
}
return vm_manager.UnmapPhysicalMemory(addr, size);
if (page_table.IsOutsideAliasRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
size);
return ERR_INVALID_MEMORY_RANGE;
}
return page_table.UnmapPhysicalMemory(addr, size);
}
/// Sets the thread activity
@ -1197,74 +1138,49 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
return ERR_INVALID_ADDRESS_STATE;
}
const auto permissions_type = static_cast<MemoryPermission>(permissions);
if (permissions_type != MemoryPermission::Read &&
permissions_type != MemoryPermission::ReadWrite) {
const auto permission_type = static_cast<Memory::MemoryPermission>(permissions);
if ((permission_type | Memory::MemoryPermission::Write) !=
Memory::MemoryPermission::ReadAndWrite) {
LOG_ERROR(Kernel_SVC, "Expected Read or ReadWrite permission but got permissions=0x{:08X}",
permissions);
return ERR_INVALID_MEMORY_PERMISSIONS;
}
auto* const current_process = system.Kernel().CurrentProcess();
auto shared_memory = current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle);
auto* const current_process{system.Kernel().CurrentProcess()};
auto& page_table{current_process->PageTable()};
if (page_table.IsInvalidRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Addr does not fit within the valid region, addr=0x{:016X}, "
"size=0x{:016X}",
addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
if (page_table.IsInsideHeapRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Addr does not fit within the heap region, addr=0x{:016X}, "
"size=0x{:016X}",
addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
if (page_table.IsInsideAliasRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address does not fit within the map region, addr=0x{:016X}, "
"size=0x{:016X}",
addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
auto shared_memory{current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle)};
if (!shared_memory) {
LOG_ERROR(Kernel_SVC, "Shared memory does not exist, shared_memory_handle=0x{:08X}",
shared_memory_handle);
return ERR_INVALID_HANDLE;
}
const auto& vm_manager = current_process->VMManager();
if (!vm_manager.IsWithinASLRRegion(addr, size)) {
LOG_ERROR(Kernel_SVC, "Region is not within the ASLR region. addr=0x{:016X}, size={:016X}",
addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
return shared_memory->Map(*current_process, addr, permissions_type, MemoryPermission::DontCare);
}
static ResultCode UnmapSharedMemory(Core::System& system, Handle shared_memory_handle, VAddr addr,
u64 size) {
LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}",
shared_memory_handle, addr, size);
if (!Common::Is4KBAligned(addr)) {
LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, addr=0x{:016X}", addr);
return ERR_INVALID_ADDRESS;
}
if (size == 0) {
LOG_ERROR(Kernel_SVC, "Size is 0");
return ERR_INVALID_SIZE;
}
if (!Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, size=0x{:016X}", size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(addr, size)) {
LOG_ERROR(Kernel_SVC, "Region is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
addr, size);
return ERR_INVALID_ADDRESS_STATE;
}
auto* const current_process = system.Kernel().CurrentProcess();
auto shared_memory = current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle);
if (!shared_memory) {
LOG_ERROR(Kernel_SVC, "Shared memory does not exist, shared_memory_handle=0x{:08X}",
shared_memory_handle);
return ERR_INVALID_HANDLE;
}
const auto& vm_manager = current_process->VMManager();
if (!vm_manager.IsWithinASLRRegion(addr, size)) {
LOG_ERROR(Kernel_SVC, "Region is not within the ASLR region. addr=0x{:016X}, size={:016X}",
addr, size);
return ERR_INVALID_MEMORY_RANGE;
}
return shared_memory->Unmap(*current_process, addr, size);
return shared_memory->Map(*current_process, addr, size, permission_type);
}
static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address,
@ -1279,18 +1195,17 @@ static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_add
return ERR_INVALID_HANDLE;
}
auto& memory = system.Memory();
const auto& vm_manager = process->VMManager();
const MemoryInfo memory_info = vm_manager.QueryMemory(address);
auto& memory{system.Memory()};
const auto memory_info{process->PageTable().QueryInfo(address).GetSvcMemoryInfo()};
memory.Write64(memory_info_address, memory_info.base_address);
memory.Write64(memory_info_address + 8, memory_info.size);
memory.Write32(memory_info_address + 16, memory_info.state);
memory.Write32(memory_info_address + 20, memory_info.attributes);
memory.Write32(memory_info_address + 24, memory_info.permission);
memory.Write32(memory_info_address + 32, memory_info.ipc_ref_count);
memory.Write32(memory_info_address + 28, memory_info.device_ref_count);
memory.Write32(memory_info_address + 36, 0);
memory.Write64(memory_info_address + 0x00, memory_info.addr);
memory.Write64(memory_info_address + 0x08, memory_info.size);
memory.Write32(memory_info_address + 0x10, static_cast<u32>(memory_info.state) & 0xff);
memory.Write32(memory_info_address + 0x14, static_cast<u32>(memory_info.attr));
memory.Write32(memory_info_address + 0x18, static_cast<u32>(memory_info.perm));
memory.Write32(memory_info_address + 0x1c, memory_info.ipc_refcount);
memory.Write32(memory_info_address + 0x20, memory_info.device_refcount);
memory.Write32(memory_info_address + 0x24, 0);
// Page info appears to be currently unused by the kernel and is always set to zero.
memory.Write32(page_info_address, 0);
@ -1314,142 +1229,6 @@ static ResultCode QueryMemory32(Core::System& system, u32 memory_info_address,
return QueryMemory(system, memory_info_address, page_info_address, query_address);
}
static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst_address,
u64 src_address, u64 size) {
LOG_DEBUG(Kernel_SVC,
"called. process_handle=0x{:08X}, dst_address=0x{:016X}, "
"src_address=0x{:016X}, size=0x{:016X}",
process_handle, dst_address, src_address, size);
if (!Common::Is4KBAligned(src_address)) {
LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
src_address);
return ERR_INVALID_ADDRESS;
}
if (!Common::Is4KBAligned(dst_address)) {
LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
dst_address);
return ERR_INVALID_ADDRESS;
}
if (size == 0 || !Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X})", size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range overflows the address space (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (!IsValidAddressRange(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range overflows the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
src_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
auto process = handle_table.Get<Process>(process_handle);
if (!process) {
LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
process_handle);
return ERR_INVALID_HANDLE;
}
auto& vm_manager = process->VMManager();
if (!vm_manager.IsWithinAddressSpace(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range is not within the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
src_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (!vm_manager.IsWithinASLRRegion(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
return ERR_INVALID_MEMORY_RANGE;
}
return vm_manager.MapCodeMemory(dst_address, src_address, size);
}
static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_handle,
u64 dst_address, u64 src_address, u64 size) {
LOG_DEBUG(Kernel_SVC,
"called. process_handle=0x{:08X}, dst_address=0x{:016X}, src_address=0x{:016X}, "
"size=0x{:016X}",
process_handle, dst_address, src_address, size);
if (!Common::Is4KBAligned(dst_address)) {
LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
dst_address);
return ERR_INVALID_ADDRESS;
}
if (!Common::Is4KBAligned(src_address)) {
LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
src_address);
return ERR_INVALID_ADDRESS;
}
if (size == 0 || Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range overflows the address space (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (!IsValidAddressRange(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range overflows the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
src_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
auto process = handle_table.Get<Process>(process_handle);
if (!process) {
LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
process_handle);
return ERR_INVALID_HANDLE;
}
auto& vm_manager = process->VMManager();
if (!vm_manager.IsWithinAddressSpace(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range is not within the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
src_address, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (!vm_manager.IsWithinASLRRegion(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
return ERR_INVALID_MEMORY_RANGE;
}
return vm_manager.UnmapCodeMemory(dst_address, src_address, size);
}
/// Exits the current process
static void ExitProcess(Core::System& system) {
auto* current_process = system.Kernel().CurrentProcess();
@ -1506,6 +1285,9 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
}
auto& kernel = system.Kernel();
ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(ResourceType::Threads, 1));
CASCADE_RESULT(std::shared_ptr<Thread> thread,
Thread::Create(kernel, "", entry_point, priority, arg, processor_id, stack_top,
*current_process));
@ -1610,7 +1392,7 @@ static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr mutex_add
"called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}",
mutex_addr, condition_variable_addr, thread_handle, nano_seconds);
if (Memory::IsKernelVirtualAddress(mutex_addr)) {
if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) {
LOG_ERROR(
Kernel_SVC,
"Given mutex address must not be within the kernel address space. address=0x{:016X}",
@ -1741,7 +1523,7 @@ static ResultCode WaitForAddress(Core::System& system, VAddr address, u32 type,
type, value, timeout);
// If the passed address is a kernel virtual address, return invalid memory state.
if (Memory::IsKernelVirtualAddress(address)) {
if (Core::Memory::IsKernelVirtualAddress(address)) {
LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address);
return ERR_INVALID_ADDRESS_STATE;
}
@ -1769,7 +1551,7 @@ static ResultCode SignalToAddress(Core::System& system, VAddr address, u32 type,
address, type, value, num_to_wake);
// If the passed address is a kernel virtual address, return invalid memory state.
if (Memory::IsKernelVirtualAddress(address)) {
if (Core::Memory::IsKernelVirtualAddress(address)) {
LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address);
return ERR_INVALID_ADDRESS_STATE;
}
@ -1865,9 +1647,9 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
return ERR_INVALID_ADDRESS_STATE;
}
const auto perms = static_cast<MemoryPermission>(permissions);
if (perms != MemoryPermission::None && perms != MemoryPermission::Read &&
perms != MemoryPermission::ReadWrite) {
const auto perms{static_cast<Memory::MemoryPermission>(permissions)};
if (perms > Memory::MemoryPermission::ReadAndWrite ||
perms == Memory::MemoryPermission::Write) {
LOG_ERROR(Kernel_SVC, "Invalid memory permissions for transfer memory! (perms={:08X})",
permissions);
return ERR_INVALID_MEMORY_PERMISSIONS;
@ -1890,111 +1672,6 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
return RESULT_SUCCESS;
}
static ResultCode MapTransferMemory(Core::System& system, Handle handle, VAddr address, u64 size,
u32 permission_raw) {
LOG_DEBUG(Kernel_SVC,
"called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}, permissions=0x{:08X}",
handle, address, size, permission_raw);
if (!Common::Is4KBAligned(address)) {
LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).",
address);
return ERR_INVALID_ADDRESS;
}
if (size == 0 || !Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC,
"Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).",
size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(address, size)) {
LOG_ERROR(Kernel_SVC,
"Given address and size overflows the 64-bit range (address=0x{:016X}, "
"size=0x{:016X}).",
address, size);
return ERR_INVALID_ADDRESS_STATE;
}
const auto permissions = static_cast<MemoryPermission>(permission_raw);
if (permissions != MemoryPermission::None && permissions != MemoryPermission::Read &&
permissions != MemoryPermission::ReadWrite) {
LOG_ERROR(Kernel_SVC, "Invalid transfer memory permissions given (permissions=0x{:08X}).",
permission_raw);
return ERR_INVALID_STATE;
}
const auto& kernel = system.Kernel();
const auto* const current_process = kernel.CurrentProcess();
const auto& handle_table = current_process->GetHandleTable();
auto transfer_memory = handle_table.Get<TransferMemory>(handle);
if (!transfer_memory) {
LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).",
handle);
return ERR_INVALID_HANDLE;
}
if (!current_process->VMManager().IsWithinASLRRegion(address, size)) {
LOG_ERROR(Kernel_SVC,
"Given address and size don't fully fit within the ASLR region "
"(address=0x{:016X}, size=0x{:016X}).",
address, size);
return ERR_INVALID_MEMORY_RANGE;
}
return transfer_memory->MapMemory(address, size, permissions);
}
static ResultCode UnmapTransferMemory(Core::System& system, Handle handle, VAddr address,
u64 size) {
LOG_DEBUG(Kernel_SVC, "called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}", handle,
address, size);
if (!Common::Is4KBAligned(address)) {
LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).",
address);
return ERR_INVALID_ADDRESS;
}
if (size == 0 || !Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC,
"Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).",
size);
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(address, size)) {
LOG_ERROR(Kernel_SVC,
"Given address and size overflows the 64-bit range (address=0x{:016X}, "
"size=0x{:016X}).",
address, size);
return ERR_INVALID_ADDRESS_STATE;
}
const auto& kernel = system.Kernel();
const auto* const current_process = kernel.CurrentProcess();
const auto& handle_table = current_process->GetHandleTable();
auto transfer_memory = handle_table.Get<TransferMemory>(handle);
if (!transfer_memory) {
LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).",
handle);
return ERR_INVALID_HANDLE;
}
if (!current_process->VMManager().IsWithinASLRRegion(address, size)) {
LOG_ERROR(Kernel_SVC,
"Given address and size don't fully fit within the ASLR region "
"(address=0x{:016X}, size=0x{:016X}).",
address, size);
return ERR_INVALID_MEMORY_RANGE;
}
return transfer_memory->UnmapMemory(address, size);
}
static ResultCode GetThreadCoreMask(Core::System& system, Handle thread_handle, u32* core,
u64* mask) {
LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
@ -2073,52 +1750,6 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle,
return RESULT_SUCCESS;
}
static ResultCode CreateSharedMemory(Core::System& system, Handle* handle, u64 size,
u32 local_permissions, u32 remote_permissions) {
LOG_TRACE(Kernel_SVC, "called, size=0x{:X}, localPerms=0x{:08X}, remotePerms=0x{:08X}", size,
local_permissions, remote_permissions);
if (size == 0) {
LOG_ERROR(Kernel_SVC, "Size is 0");
return ERR_INVALID_SIZE;
}
if (!Common::Is4KBAligned(size)) {
LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:016X}", size);
return ERR_INVALID_SIZE;
}
if (size >= MAIN_MEMORY_SIZE) {
LOG_ERROR(Kernel_SVC, "Size is not less than 8GB, 0x{:016X}", size);
return ERR_INVALID_SIZE;
}
const auto local_perms = static_cast<MemoryPermission>(local_permissions);
if (local_perms != MemoryPermission::Read && local_perms != MemoryPermission::ReadWrite) {
LOG_ERROR(Kernel_SVC,
"Invalid local memory permissions, expected Read or ReadWrite but got "
"local_permissions={}",
static_cast<u32>(local_permissions));
return ERR_INVALID_MEMORY_PERMISSIONS;
}
const auto remote_perms = static_cast<MemoryPermission>(remote_permissions);
if (remote_perms != MemoryPermission::Read && remote_perms != MemoryPermission::ReadWrite &&
remote_perms != MemoryPermission::DontCare) {
LOG_ERROR(Kernel_SVC,
"Invalid remote memory permissions, expected Read, ReadWrite or DontCare but got "
"remote_permissions={}",
static_cast<u32>(remote_permissions));
return ERR_INVALID_MEMORY_PERMISSIONS;
}
auto& kernel = system.Kernel();
auto process = kernel.CurrentProcess();
auto& handle_table = process->GetHandleTable();
auto shared_mem_handle = SharedMemory::Create(kernel, process, size, local_perms, remote_perms);
CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle));
return RESULT_SUCCESS;
}
static ResultCode CreateEvent(Core::System& system, Handle* write_handle, Handle* read_handle) {
LOG_DEBUG(Kernel_SVC, "called");
@ -2305,11 +1936,10 @@ static ResultCode GetProcessList(Core::System& system, u32* out_num_processes,
}
const auto& kernel = system.Kernel();
const auto& vm_manager = kernel.CurrentProcess()->VMManager();
const auto total_copy_size = out_process_ids_size * sizeof(u64);
if (out_process_ids_size > 0 &&
!vm_manager.IsWithinAddressSpace(out_process_ids, total_copy_size)) {
if (out_process_ids_size > 0 && !kernel.CurrentProcess()->PageTable().IsInsideAddressSpace(
out_process_ids, total_copy_size)) {
LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
out_process_ids, out_process_ids + total_copy_size);
return ERR_INVALID_ADDRESS_STATE;
@ -2345,11 +1975,10 @@ static ResultCode GetThreadList(Core::System& system, u32* out_num_threads, VAdd
}
const auto* const current_process = system.Kernel().CurrentProcess();
const auto& vm_manager = current_process->VMManager();
const auto total_copy_size = out_thread_ids_size * sizeof(u64);
if (out_thread_ids_size > 0 &&
!vm_manager.IsWithinAddressSpace(out_thread_ids, total_copy_size)) {
!current_process->PageTable().IsInsideAddressSpace(out_thread_ids, total_copy_size)) {
LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
out_thread_ids, out_thread_ids + total_copy_size);
return ERR_INVALID_ADDRESS_STATE;
@ -2510,7 +2139,7 @@ static const FunctionDef SVC_Table_32[] = {
static const FunctionDef SVC_Table_64[] = {
{0x00, nullptr, "Unknown"},
{0x01, SvcWrap64<SetHeapSize>, "SetHeapSize"},
{0x02, SvcWrap64<SetMemoryPermission>, "SetMemoryPermission"},
{0x02, nullptr, "SetMemoryPermission"},
{0x03, SvcWrap64<SetMemoryAttribute>, "SetMemoryAttribute"},
{0x04, SvcWrap64<MapMemory>, "MapMemory"},
{0x05, SvcWrap64<UnmapMemory>, "UnmapMemory"},
@ -2528,7 +2157,7 @@ static const FunctionDef SVC_Table_64[] = {
{0x11, SvcWrap64<SignalEvent>, "SignalEvent"},
{0x12, SvcWrap64<ClearEvent>, "ClearEvent"},
{0x13, SvcWrap64<MapSharedMemory>, "MapSharedMemory"},
{0x14, SvcWrap64<UnmapSharedMemory>, "UnmapSharedMemory"},
{0x14, nullptr, "UnmapSharedMemory"},
{0x15, SvcWrap64<CreateTransferMemory>, "CreateTransferMemory"},
{0x16, SvcWrap64<CloseHandle>, "CloseHandle"},
{0x17, SvcWrap64<ResetSignal>, "ResetSignal"},
@ -2588,9 +2217,9 @@ static const FunctionDef SVC_Table_64[] = {
{0x4D, nullptr, "SleepSystem"},
{0x4E, nullptr, "ReadWriteRegister"},
{0x4F, nullptr, "SetProcessActivity"},
{0x50, SvcWrap64<CreateSharedMemory>, "CreateSharedMemory"},
{0x51, SvcWrap64<MapTransferMemory>, "MapTransferMemory"},
{0x52, SvcWrap64<UnmapTransferMemory>, "UnmapTransferMemory"},
{0x50, nullptr, "CreateSharedMemory"},
{0x51, nullptr, "MapTransferMemory"},
{0x52, nullptr, "UnmapTransferMemory"},
{0x53, nullptr, "CreateInterruptEvent"},
{0x54, nullptr, "QueryPhysicalAddress"},
{0x55, nullptr, "QueryIoMapping"},
@ -2627,8 +2256,8 @@ static const FunctionDef SVC_Table_64[] = {
{0x74, nullptr, "MapProcessMemory"},
{0x75, nullptr, "UnmapProcessMemory"},
{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
{0x77, SvcWrap64<MapProcessCodeMemory>, "MapProcessCodeMemory"},
{0x78, SvcWrap64<UnmapProcessCodeMemory>, "UnmapProcessCodeMemory"},
{0x77, nullptr, "MapProcessCodeMemory"},
{0x78, nullptr, "UnmapProcessCodeMemory"},
{0x79, nullptr, "CreateProcess"},
{0x7A, nullptr, "StartProcess"},
{0x7B, nullptr, "TerminateProcess"},
@ -2656,7 +2285,7 @@ static const FunctionDef* GetSVCInfo64(u32 func_num) {
MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70));
void CallSVC(Core::System& system, u32 immediate) {
void Call(Core::System& system, u32 immediate) {
MICROPROFILE_SCOPE(Kernel_SVC);
// Lock the global kernel mutex when we enter the kernel HLE.
@ -2675,4 +2304,4 @@ void CallSVC(Core::System& system, u32 immediate) {
}
}
} // namespace Kernel
} // namespace Kernel::Svc

View file

@ -10,8 +10,8 @@ namespace Core {
class System;
}
namespace Kernel {
namespace Kernel::Svc {
void CallSVC(Core::System& system, u32 immediate);
void Call(Core::System& system, u32 immediate);
} // namespace Kernel
} // namespace Kernel::Svc

View file

@ -0,0 +1,68 @@
// Copyright 2020 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Kernel::Svc {
enum class MemoryState : u32 {
Free = 0x00,
Io = 0x01,
Static = 0x02,
Code = 0x03,
CodeData = 0x04,
Normal = 0x05,
Shared = 0x06,
Alias = 0x07,
AliasCode = 0x08,
AliasCodeData = 0x09,
Ipc = 0x0A,
Stack = 0x0B,
ThreadLocal = 0x0C,
Transfered = 0x0D,
SharedTransfered = 0x0E,
SharedCode = 0x0F,
Inaccessible = 0x10,
NonSecureIpc = 0x11,
NonDeviceIpc = 0x12,
Kernel = 0x13,
GeneratedCode = 0x14,
CodeOut = 0x15,
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryState);
enum class MemoryAttribute : u32 {
Locked = (1 << 0),
IpcLocked = (1 << 1),
DeviceShared = (1 << 2),
Uncached = (1 << 3),
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryAttribute);
enum class MemoryPermission : u32 {
None = (0 << 0),
Read = (1 << 0),
Write = (1 << 1),
Execute = (1 << 2),
ReadWrite = Read | Write,
ReadExecute = Read | Execute,
DontCare = (1 << 28),
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission);
struct MemoryInfo {
u64 addr{};
u64 size{};
MemoryState state{};
MemoryAttribute attr{};
MemoryPermission perm{};
u32 ipc_refcount{};
u32 device_refcount{};
u32 padding{};
};
} // namespace Kernel::Svc

View file

@ -2,17 +2,16 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/transfer_memory.h"
#include "core/hle/result.h"
#include "core/memory.h"
namespace Kernel {
TransferMemory::TransferMemory(KernelCore& kernel, Memory::Memory& memory)
TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory)
: Object{kernel}, memory{memory} {}
TransferMemory::~TransferMemory() {
@ -20,14 +19,15 @@ TransferMemory::~TransferMemory() {
Reset();
}
std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, Memory::Memory& memory,
VAddr base_address, u64 size,
MemoryPermission permissions) {
std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel,
Core::Memory::Memory& memory,
VAddr base_address, std::size_t size,
Memory::MemoryPermission permissions) {
std::shared_ptr<TransferMemory> transfer_memory{
std::make_shared<TransferMemory>(kernel, memory)};
transfer_memory->base_address = base_address;
transfer_memory->memory_size = size;
transfer_memory->size = size;
transfer_memory->owner_permissions = permissions;
transfer_memory->owner_process = kernel.CurrentProcess();
@ -38,98 +38,12 @@ const u8* TransferMemory::GetPointer() const {
return memory.GetPointer(base_address);
}
u64 TransferMemory::GetSize() const {
return memory_size;
}
ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission permissions) {
if (memory_size != size) {
return ERR_INVALID_SIZE;
}
if (owner_permissions != permissions) {
return ERR_INVALID_STATE;
}
if (is_mapped) {
return ERR_INVALID_STATE;
}
backing_block = std::make_shared<PhysicalMemory>(size);
const auto map_state = owner_permissions == MemoryPermission::None
? MemoryState::TransferMemoryIsolated
: MemoryState::TransferMemory;
auto& vm_manager = owner_process->VMManager();
const auto map_result = vm_manager.MapMemoryBlock(address, backing_block, 0, size, map_state);
if (map_result.Failed()) {
return map_result.Code();
}
is_mapped = true;
return RESULT_SUCCESS;
}
ResultCode TransferMemory::Reserve() {
auto& vm_manager{owner_process->VMManager()};
const auto check_range_result{vm_manager.CheckRangeState(
base_address, memory_size, MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated,
MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::All,
VMAPermission::ReadWrite, MemoryAttribute::Mask, MemoryAttribute::None,
MemoryAttribute::IpcAndDeviceMapped)};
if (check_range_result.Failed()) {
return check_range_result.Code();
}
auto [state_, permissions_, attribute] = *check_range_result;
if (const auto result{vm_manager.ReprotectRange(
base_address, memory_size, SharedMemory::ConvertPermissions(owner_permissions))};
result.IsError()) {
return result;
}
return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask,
attribute | MemoryAttribute::Locked);
return owner_process->PageTable().ReserveTransferMemory(base_address, size, owner_permissions);
}
ResultCode TransferMemory::Reset() {
auto& vm_manager{owner_process->VMManager()};
if (const auto result{vm_manager.CheckRangeState(
base_address, memory_size,
MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated,
MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::None,
VMAPermission::None, MemoryAttribute::Mask, MemoryAttribute::Locked,
MemoryAttribute::IpcAndDeviceMapped)};
result.Failed()) {
return result.Code();
}
if (const auto result{
vm_manager.ReprotectRange(base_address, memory_size, VMAPermission::ReadWrite)};
result.IsError()) {
return result;
}
return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask,
MemoryAttribute::None);
}
ResultCode TransferMemory::UnmapMemory(VAddr address, u64 size) {
if (memory_size != size) {
return ERR_INVALID_SIZE;
}
auto& vm_manager = owner_process->VMManager();
const auto result = vm_manager.UnmapRange(address, size);
if (result.IsError()) {
return result;
}
is_mapped = false;
return RESULT_SUCCESS;
return owner_process->PageTable().ResetTransferMemory(base_address, size);
}
} // namespace Kernel

View file

@ -6,12 +6,13 @@
#include <memory>
#include "core/hle/kernel/memory/memory_block.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/physical_memory.h"
union ResultCode;
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -20,8 +21,6 @@ namespace Kernel {
class KernelCore;
class Process;
enum class MemoryPermission : u32;
/// Defines the interface for transfer memory objects.
///
/// Transfer memory is typically used for the purpose of
@ -30,14 +29,14 @@ enum class MemoryPermission : u32;
///
class TransferMemory final : public Object {
public:
explicit TransferMemory(KernelCore& kernel, Memory::Memory& memory);
explicit TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory);
~TransferMemory() override;
static constexpr HandleType HANDLE_TYPE = HandleType::TransferMemory;
static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, Memory::Memory& memory,
VAddr base_address, u64 size,
MemoryPermission permissions);
static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, Core::Memory::Memory& memory,
VAddr base_address, std::size_t size,
Memory::MemoryPermission permissions);
TransferMemory(const TransferMemory&) = delete;
TransferMemory& operator=(const TransferMemory&) = delete;
@ -61,29 +60,9 @@ public:
const u8* GetPointer() const;
/// Gets the size of the memory backing this instance in bytes.
u64 GetSize() const;
/// Attempts to map transfer memory with the given range and memory permissions.
///
/// @param address The base address to being mapping memory at.
/// @param size The size of the memory to map, in bytes.
/// @param permissions The memory permissions to check against when mapping memory.
///
/// @pre The given address, size, and memory permissions must all match
/// the same values that were given when creating the transfer memory
/// instance.
///
ResultCode MapMemory(VAddr address, u64 size, MemoryPermission permissions);
/// Unmaps the transfer memory with the given range
///
/// @param address The base address to begin unmapping memory at.
/// @param size The size of the memory to unmap, in bytes.
///
/// @pre The given address and size must be the same as the ones used
/// to create the transfer memory instance.
///
ResultCode UnmapMemory(VAddr address, u64 size);
constexpr std::size_t GetSize() const {
return size;
}
/// Reserves the region to be used for the transfer memory, called after the transfer memory is
/// created.
@ -94,25 +73,19 @@ public:
ResultCode Reset();
private:
/// Memory block backing this instance.
std::shared_ptr<PhysicalMemory> backing_block;
/// The base address for the memory managed by this instance.
VAddr base_address = 0;
VAddr base_address{};
/// Size of the memory, in bytes, that this instance manages.
u64 memory_size = 0;
std::size_t size{};
/// The memory permissions that are applied to this instance.
MemoryPermission owner_permissions{};
Memory::MemoryPermission owner_permissions{};
/// The process that this transfer memory instance was created under.
Process* owner_process = nullptr;
Process* owner_process{};
/// Whether or not this transfer memory instance has mapped memory.
bool is_mapped = false;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
} // namespace Kernel

File diff suppressed because it is too large Load diff

View file

@ -1,796 +0,0 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <map>
#include <memory>
#include <tuple>
#include <vector>
#include "common/common_types.h"
#include "common/memory_hook.h"
#include "common/page_table.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/result.h"
#include "core/memory.h"
namespace Core {
class System;
}
namespace FileSys {
enum class ProgramAddressSpaceType : u8;
}
namespace Kernel {
enum class VMAType : u8 {
/// VMA represents an unmapped region of the address space.
Free,
/// VMA is backed by a ref-counted allocate memory block.
AllocatedMemoryBlock,
/// VMA is backed by a raw, unmanaged pointer.
BackingMemory,
/// VMA is mapped to MMIO registers at a fixed PAddr.
MMIO,
// TODO(yuriks): Implement MemoryAlias to support MAP/UNMAP
};
/// Permissions for mapped memory blocks
enum class VMAPermission : u8 {
None = 0,
Read = 1,
Write = 2,
Execute = 4,
ReadWrite = Read | Write,
ReadExecute = Read | Execute,
WriteExecute = Write | Execute,
ReadWriteExecute = Read | Write | Execute,
// Used as a wildcard when checking permissions across memory ranges
All = 0xFF,
};
constexpr VMAPermission operator|(VMAPermission lhs, VMAPermission rhs) {
return static_cast<VMAPermission>(u32(lhs) | u32(rhs));
}
constexpr VMAPermission operator&(VMAPermission lhs, VMAPermission rhs) {
return static_cast<VMAPermission>(u32(lhs) & u32(rhs));
}
constexpr VMAPermission operator^(VMAPermission lhs, VMAPermission rhs) {
return static_cast<VMAPermission>(u32(lhs) ^ u32(rhs));
}
constexpr VMAPermission operator~(VMAPermission permission) {
return static_cast<VMAPermission>(~u32(permission));
}
constexpr VMAPermission& operator|=(VMAPermission& lhs, VMAPermission rhs) {
lhs = lhs | rhs;
return lhs;
}
constexpr VMAPermission& operator&=(VMAPermission& lhs, VMAPermission rhs) {
lhs = lhs & rhs;
return lhs;
}
constexpr VMAPermission& operator^=(VMAPermission& lhs, VMAPermission rhs) {
lhs = lhs ^ rhs;
return lhs;
}
/// Attribute flags that can be applied to a VMA
enum class MemoryAttribute : u32 {
Mask = 0xFF,
/// No particular qualities
None = 0,
/// Memory locked/borrowed for use. e.g. This would be used by transfer memory.
Locked = 1,
/// Memory locked for use by IPC-related internals.
LockedForIPC = 2,
/// Mapped as part of the device address space.
DeviceMapped = 4,
/// Uncached memory
Uncached = 8,
IpcAndDeviceMapped = LockedForIPC | DeviceMapped,
};
constexpr MemoryAttribute operator|(MemoryAttribute lhs, MemoryAttribute rhs) {
return static_cast<MemoryAttribute>(u32(lhs) | u32(rhs));
}
constexpr MemoryAttribute operator&(MemoryAttribute lhs, MemoryAttribute rhs) {
return static_cast<MemoryAttribute>(u32(lhs) & u32(rhs));
}
constexpr MemoryAttribute operator^(MemoryAttribute lhs, MemoryAttribute rhs) {
return static_cast<MemoryAttribute>(u32(lhs) ^ u32(rhs));
}
constexpr MemoryAttribute operator~(MemoryAttribute attribute) {
return static_cast<MemoryAttribute>(~u32(attribute));
}
constexpr MemoryAttribute& operator|=(MemoryAttribute& lhs, MemoryAttribute rhs) {
lhs = lhs | rhs;
return lhs;
}
constexpr MemoryAttribute& operator&=(MemoryAttribute& lhs, MemoryAttribute rhs) {
lhs = lhs & rhs;
return lhs;
}
constexpr MemoryAttribute& operator^=(MemoryAttribute& lhs, MemoryAttribute rhs) {
lhs = lhs ^ rhs;
return lhs;
}
constexpr u32 ToSvcMemoryAttribute(MemoryAttribute attribute) {
return static_cast<u32>(attribute & MemoryAttribute::Mask);
}
// clang-format off
/// Represents memory states and any relevant flags, as used by the kernel.
/// svcQueryMemory interprets these by masking away all but the first eight
/// bits when storing memory state into a MemoryInfo instance.
enum class MemoryState : u32 {
Mask = 0xFF,
FlagProtect = 1U << 8,
FlagDebug = 1U << 9,
FlagIPC0 = 1U << 10,
FlagIPC3 = 1U << 11,
FlagIPC1 = 1U << 12,
FlagMapped = 1U << 13,
FlagCode = 1U << 14,
FlagAlias = 1U << 15,
FlagModule = 1U << 16,
FlagTransfer = 1U << 17,
FlagQueryPhysicalAddressAllowed = 1U << 18,
FlagSharedDevice = 1U << 19,
FlagSharedDeviceAligned = 1U << 20,
FlagIPCBuffer = 1U << 21,
FlagMemoryPoolAllocated = 1U << 22,
FlagMapProcess = 1U << 23,
FlagUncached = 1U << 24,
FlagCodeMemory = 1U << 25,
// Wildcard used in range checking to indicate all states.
All = 0xFFFFFFFF,
// Convenience flag sets to reduce repetition
IPCFlags = FlagIPC0 | FlagIPC3 | FlagIPC1,
CodeFlags = FlagDebug | IPCFlags | FlagMapped | FlagCode | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
DataFlags = FlagProtect | IPCFlags | FlagMapped | FlagAlias | FlagTransfer |
FlagQueryPhysicalAddressAllowed | FlagSharedDevice | FlagSharedDeviceAligned |
FlagMemoryPoolAllocated | FlagIPCBuffer | FlagUncached,
Unmapped = 0x00,
Io = 0x01 | FlagMapped,
Normal = 0x02 | FlagMapped | FlagQueryPhysicalAddressAllowed,
Code = 0x03 | CodeFlags | FlagMapProcess,
CodeData = 0x04 | DataFlags | FlagMapProcess | FlagCodeMemory,
Heap = 0x05 | DataFlags | FlagCodeMemory,
Shared = 0x06 | FlagMapped | FlagMemoryPoolAllocated,
ModuleCode = 0x08 | CodeFlags | FlagModule | FlagMapProcess,
ModuleCodeData = 0x09 | DataFlags | FlagModule | FlagMapProcess | FlagCodeMemory,
IpcBuffer0 = 0x0A | FlagMapped | FlagQueryPhysicalAddressAllowed | FlagMemoryPoolAllocated |
IPCFlags | FlagSharedDevice | FlagSharedDeviceAligned,
Stack = 0x0B | FlagMapped | IPCFlags | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
ThreadLocal = 0x0C | FlagMapped | FlagMemoryPoolAllocated,
TransferMemoryIsolated = 0x0D | IPCFlags | FlagMapped | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated |
FlagUncached,
TransferMemory = 0x0E | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
ProcessMemory = 0x0F | FlagIPC3 | FlagIPC1 | FlagMapped | FlagMemoryPoolAllocated,
// Used to signify an inaccessible or invalid memory region with memory queries
Inaccessible = 0x10,
IpcBuffer1 = 0x11 | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
IpcBuffer3 = 0x12 | FlagIPC3 | FlagMapped | FlagQueryPhysicalAddressAllowed |
FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
KernelStack = 0x13 | FlagMapped,
};
// clang-format on
constexpr MemoryState operator|(MemoryState lhs, MemoryState rhs) {
return static_cast<MemoryState>(u32(lhs) | u32(rhs));
}
constexpr MemoryState operator&(MemoryState lhs, MemoryState rhs) {
return static_cast<MemoryState>(u32(lhs) & u32(rhs));
}
constexpr MemoryState operator^(MemoryState lhs, MemoryState rhs) {
return static_cast<MemoryState>(u32(lhs) ^ u32(rhs));
}
constexpr MemoryState operator~(MemoryState lhs) {
return static_cast<MemoryState>(~u32(lhs));
}
constexpr MemoryState& operator|=(MemoryState& lhs, MemoryState rhs) {
lhs = lhs | rhs;
return lhs;
}
constexpr MemoryState& operator&=(MemoryState& lhs, MemoryState rhs) {
lhs = lhs & rhs;
return lhs;
}
constexpr MemoryState& operator^=(MemoryState& lhs, MemoryState rhs) {
lhs = lhs ^ rhs;
return lhs;
}
constexpr u32 ToSvcMemoryState(MemoryState state) {
return static_cast<u32>(state & MemoryState::Mask);
}
struct MemoryInfo {
u64 base_address;
u64 size;
u32 state;
u32 attributes;
u32 permission;
u32 ipc_ref_count;
u32 device_ref_count;
};
static_assert(sizeof(MemoryInfo) == 0x28, "MemoryInfo has incorrect size.");
struct PageInfo {
u32 flags;
};
/**
* Represents a VMA in an address space. A VMA is a contiguous region of virtual addressing space
* with homogeneous attributes across its extents. In this particular implementation each VMA is
* also backed by a single host memory allocation.
*/
struct VirtualMemoryArea {
/// Gets the starting (base) address of this VMA.
VAddr StartAddress() const {
return base;
}
/// Gets the ending address of this VMA.
VAddr EndAddress() const {
return base + size - 1;
}
/// Virtual base address of the region.
VAddr base = 0;
/// Size of the region.
u64 size = 0;
VMAType type = VMAType::Free;
VMAPermission permissions = VMAPermission::None;
MemoryState state = MemoryState::Unmapped;
MemoryAttribute attribute = MemoryAttribute::None;
// Settings for type = AllocatedMemoryBlock
/// Memory block backing this VMA.
std::shared_ptr<PhysicalMemory> backing_block = nullptr;
/// Offset into the backing_memory the mapping starts from.
std::size_t offset = 0;
// Settings for type = BackingMemory
/// Pointer backing this VMA. It will not be destroyed or freed when the VMA is removed.
u8* backing_memory = nullptr;
// Settings for type = MMIO
/// Physical address of the register area this VMA maps to.
PAddr paddr = 0;
Common::MemoryHookPointer mmio_handler = nullptr;
/// Tests if this area can be merged to the right with `next`.
bool CanBeMergedWith(const VirtualMemoryArea& next) const;
};
/**
* Manages a process' virtual addressing space. This class maintains a list of allocated and free
* regions in the address space, along with their attributes, and allows kernel clients to
* manipulate it, adjusting the page table to match.
*
* This is similar in idea and purpose to the VM manager present in operating system kernels, with
* the main difference being that it doesn't have to support swapping or memory mapping of files.
* The implementation is also simplified by not having to allocate page frames. See these articles
* about the Linux kernel for an explantion of the concept and implementation:
* - http://duartes.org/gustavo/blog/post/how-the-kernel-manages-your-memory/
* - http://duartes.org/gustavo/blog/post/page-cache-the-affair-between-memory-and-files/
*/
class VMManager final {
using VMAMap = std::map<VAddr, VirtualMemoryArea>;
public:
using VMAHandle = VMAMap::const_iterator;
explicit VMManager(Core::System& system);
~VMManager();
/// Clears the address space map, re-initializing with a single free area.
void Reset(FileSys::ProgramAddressSpaceType type);
/// Finds the VMA in which the given address is included in, or `vma_map.end()`.
VMAHandle FindVMA(VAddr target) const;
/// Indicates whether or not the given handle is within the VMA map.
bool IsValidHandle(VMAHandle handle) const;
// TODO(yuriks): Should these functions actually return the handle?
/**
* Maps part of a ref-counted block of memory at a given address.
*
* @param target The guest address to start the mapping at.
* @param block The block to be mapped.
* @param offset Offset into `block` to map from.
* @param size Size of the mapping.
* @param state MemoryState tag to attach to the VMA.
*/
ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<PhysicalMemory> block,
std::size_t offset, u64 size, MemoryState state,
VMAPermission perm = VMAPermission::ReadWrite);
/**
* Maps an unmanaged host memory pointer at a given address.
*
* @param target The guest address to start the mapping at.
* @param memory The memory to be mapped.
* @param size Size of the mapping.
* @param state MemoryState tag to attach to the VMA.
*/
ResultVal<VMAHandle> MapBackingMemory(VAddr target, u8* memory, u64 size, MemoryState state);
/**
* Finds the first free memory region of the given size within
* the user-addressable ASLR memory region.
*
* @param size The size of the desired region in bytes.
*
* @returns If successful, the base address of the free region with
* the given size.
*/
ResultVal<VAddr> FindFreeRegion(u64 size) const;
/**
* Finds the first free address range that can hold a region of the desired size
*
* @param begin The starting address of the range.
* This is treated as an inclusive beginning address.
*
* @param end The ending address of the range.
* This is treated as an exclusive ending address.
*
* @param size The size of the free region to attempt to locate,
* in bytes.
*
* @returns If successful, the base address of the free region with
* the given size.
*
* @returns If unsuccessful, a result containing an error code.
*
* @pre The starting address must be less than the ending address.
* @pre The size must not exceed the address range itself.
*/
ResultVal<VAddr> FindFreeRegion(VAddr begin, VAddr end, u64 size) const;
/**
* Maps a memory-mapped IO region at a given address.
*
* @param target The guest address to start the mapping at.
* @param paddr The physical address where the registers are present.
* @param size Size of the mapping.
* @param state MemoryState tag to attach to the VMA.
* @param mmio_handler The handler that will implement read and write for this MMIO region.
*/
ResultVal<VMAHandle> MapMMIO(VAddr target, PAddr paddr, u64 size, MemoryState state,
Common::MemoryHookPointer mmio_handler);
/// Unmaps a range of addresses, splitting VMAs as necessary.
ResultCode UnmapRange(VAddr target, u64 size);
/// Changes the permissions of the given VMA.
VMAHandle Reprotect(VMAHandle vma, VMAPermission new_perms);
/// Changes the permissions of a range of addresses, splitting VMAs as necessary.
ResultCode ReprotectRange(VAddr target, u64 size, VMAPermission new_perms);
ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state);
/// Attempts to allocate a heap with the given size.
///
/// @param size The size of the heap to allocate in bytes.
///
/// @note If a heap is currently allocated, and this is called
/// with a size that is equal to the size of the current heap,
/// then this function will do nothing and return the current
/// heap's starting address, as there's no need to perform
/// any additional heap allocation work.
///
/// @note If a heap is currently allocated, and this is called
/// with a size less than the current heap's size, then
/// this function will attempt to shrink the heap.
///
/// @note If a heap is currently allocated, and this is called
/// with a size larger than the current heap's size, then
/// this function will attempt to extend the size of the heap.
///
/// @returns A result indicating either success or failure.
/// <p>
/// If successful, this function will return a result
/// containing the starting address to the allocated heap.
/// <p>
/// If unsuccessful, this function will return a result
/// containing an error code.
///
/// @pre The given size must lie within the allowable heap
/// memory region managed by this VMManager instance.
/// Failure to abide by this will result in ERR_OUT_OF_MEMORY
/// being returned as the result.
///
ResultVal<VAddr> SetHeapSize(u64 size);
/// Maps memory at a given address.
///
/// @param target The virtual address to map memory at.
/// @param size The amount of memory to map.
///
/// @note The destination address must lie within the Map region.
///
/// @note This function requires that SystemResourceSize be non-zero,
/// however, this is just because if it were not then the
/// resulting page tables could be exploited on hardware by
/// a malicious program. SystemResource usage does not need
/// to be explicitly checked or updated here.
ResultCode MapPhysicalMemory(VAddr target, u64 size);
/// Unmaps memory at a given address.
///
/// @param target The virtual address to unmap memory at.
/// @param size The amount of memory to unmap.
///
/// @note The destination address must lie within the Map region.
///
/// @note This function requires that SystemResourceSize be non-zero,
/// however, this is just because if it were not then the
/// resulting page tables could be exploited on hardware by
/// a malicious program. SystemResource usage does not need
/// to be explicitly checked or updated here.
ResultCode UnmapPhysicalMemory(VAddr target, u64 size);
/// Maps a region of memory as code memory.
///
/// @param dst_address The base address of the region to create the aliasing memory region.
/// @param src_address The base address of the region to be aliased.
/// @param size The total amount of memory to map in bytes.
///
/// @pre Both memory regions lie within the actual addressable address space.
///
/// @post After this function finishes execution, assuming success, then the address range
/// [dst_address, dst_address+size) will alias the memory region,
/// [src_address, src_address+size).
/// <p>
/// What this also entails is as follows:
/// 1. The aliased region gains the Locked memory attribute.
/// 2. The aliased region becomes read-only.
/// 3. The aliasing region becomes read-only.
/// 4. The aliasing region is created with a memory state of MemoryState::CodeModule.
///
ResultCode MapCodeMemory(VAddr dst_address, VAddr src_address, u64 size);
/// Unmaps a region of memory designated as code module memory.
///
/// @param dst_address The base address of the memory region aliasing the source memory region.
/// @param src_address The base address of the memory region being aliased.
/// @param size The size of the memory region to unmap in bytes.
///
/// @pre Both memory ranges lie within the actual addressable address space.
///
/// @pre The memory region being unmapped has been previously been mapped
/// by a call to MapCodeMemory.
///
/// @post After execution of the function, if successful. the aliasing memory region
/// will be unmapped and the aliased region will have various traits about it
/// restored to what they were prior to the original mapping call preceding
/// this function call.
/// <p>
/// What this also entails is as follows:
/// 1. The state of the memory region will now indicate a general heap region.
/// 2. All memory attributes for the memory region are cleared.
/// 3. Memory permissions for the region are restored to user read/write.
///
ResultCode UnmapCodeMemory(VAddr dst_address, VAddr src_address, u64 size);
/// Queries the memory manager for information about the given address.
///
/// @param address The address to query the memory manager about for information.
///
/// @return A MemoryInfo instance containing information about the given address.
///
MemoryInfo QueryMemory(VAddr address) const;
/// Sets an attribute across the given address range.
///
/// @param address The starting address
/// @param size The size of the range to set the attribute on.
/// @param mask The attribute mask
/// @param attribute The attribute to set across the given address range
///
/// @returns RESULT_SUCCESS if successful
/// @returns ERR_INVALID_ADDRESS_STATE if the attribute could not be set.
///
ResultCode SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask,
MemoryAttribute attribute);
/**
* Scans all VMAs and updates the page table range of any that use the given vector as backing
* memory. This should be called after any operation that causes reallocation of the vector.
*/
void RefreshMemoryBlockMappings(const PhysicalMemory* block);
/// Dumps the address space layout to the log, for debugging
void LogLayout() const;
/// Gets the total memory usage, used by svcGetInfo
u64 GetTotalPhysicalMemoryAvailable() const;
/// Gets the address space base address
VAddr GetAddressSpaceBaseAddress() const;
/// Gets the address space end address
VAddr GetAddressSpaceEndAddress() const;
/// Gets the total address space address size in bytes
u64 GetAddressSpaceSize() const;
/// Gets the address space width in bits.
u64 GetAddressSpaceWidth() const;
/// Determines whether or not the given address range lies within the address space.
bool IsWithinAddressSpace(VAddr address, u64 size) const;
/// Gets the base address of the ASLR region.
VAddr GetASLRRegionBaseAddress() const;
/// Gets the end address of the ASLR region.
VAddr GetASLRRegionEndAddress() const;
/// Gets the size of the ASLR region
u64 GetASLRRegionSize() const;
/// Determines whether or not the specified address range is within the ASLR region.
bool IsWithinASLRRegion(VAddr address, u64 size) const;
/// Gets the base address of the code region.
VAddr GetCodeRegionBaseAddress() const;
/// Gets the end address of the code region.
VAddr GetCodeRegionEndAddress() const;
/// Gets the total size of the code region in bytes.
u64 GetCodeRegionSize() const;
/// Determines whether or not the specified range is within the code region.
bool IsWithinCodeRegion(VAddr address, u64 size) const;
/// Gets the base address of the heap region.
VAddr GetHeapRegionBaseAddress() const;
/// Gets the end address of the heap region;
VAddr GetHeapRegionEndAddress() const;
/// Gets the total size of the heap region in bytes.
u64 GetHeapRegionSize() const;
/// Gets the total size of the current heap in bytes.
///
/// @note This is the current allocated heap size, not the size
/// of the region it's allowed to exist within.
///
u64 GetCurrentHeapSize() const;
/// Determines whether or not the specified range is within the heap region.
bool IsWithinHeapRegion(VAddr address, u64 size) const;
/// Gets the base address of the map region.
VAddr GetMapRegionBaseAddress() const;
/// Gets the end address of the map region.
VAddr GetMapRegionEndAddress() const;
/// Gets the total size of the map region in bytes.
u64 GetMapRegionSize() const;
/// Determines whether or not the specified range is within the map region.
bool IsWithinMapRegion(VAddr address, u64 size) const;
/// Gets the base address of the stack region.
VAddr GetStackRegionBaseAddress() const;
/// Gets the end address of the stack region.
VAddr GetStackRegionEndAddress() const;
/// Gets the total size of the stack region in bytes.
u64 GetStackRegionSize() const;
/// Determines whether or not the given address range is within the stack region
bool IsWithinStackRegion(VAddr address, u64 size) const;
/// Gets the base address of the TLS IO region.
VAddr GetTLSIORegionBaseAddress() const;
/// Gets the end address of the TLS IO region.
VAddr GetTLSIORegionEndAddress() const;
/// Gets the total size of the TLS IO region in bytes.
u64 GetTLSIORegionSize() const;
/// Determines if the given address range is within the TLS IO region.
bool IsWithinTLSIORegion(VAddr address, u64 size) const;
/// Each VMManager has its own page table, which is set as the main one when the owning process
/// is scheduled.
Common::PageTable page_table{Memory::PAGE_BITS};
using CheckResults = ResultVal<std::tuple<MemoryState, VMAPermission, MemoryAttribute>>;
/// Checks if an address range adheres to the specified states provided.
///
/// @param address The starting address of the address range.
/// @param size The size of the address range.
/// @param state_mask The memory state mask.
/// @param state The state to compare the individual VMA states against,
/// which is done in the form of: (vma.state & state_mask) != state.
/// @param permission_mask The memory permissions mask.
/// @param permissions The permission to compare the individual VMA permissions against,
/// which is done in the form of:
/// (vma.permission & permission_mask) != permission.
/// @param attribute_mask The memory attribute mask.
/// @param attribute The memory attributes to compare the individual VMA attributes
/// against, which is done in the form of:
/// (vma.attributes & attribute_mask) != attribute.
/// @param ignore_mask The memory attributes to ignore during the check.
///
/// @returns If successful, returns a tuple containing the memory attributes
/// (with ignored bits specified by ignore_mask unset), memory permissions, and
/// memory state across the memory range.
/// @returns If not successful, returns ERR_INVALID_ADDRESS_STATE.
///
CheckResults CheckRangeState(VAddr address, u64 size, MemoryState state_mask, MemoryState state,
VMAPermission permission_mask, VMAPermission permissions,
MemoryAttribute attribute_mask, MemoryAttribute attribute,
MemoryAttribute ignore_mask) const;
private:
using VMAIter = VMAMap::iterator;
/// Converts a VMAHandle to a mutable VMAIter.
VMAIter StripIterConstness(const VMAHandle& iter);
/// Unmaps the given VMA.
VMAIter Unmap(VMAIter vma);
/**
* Carves a VMA of a specific size at the specified address by splitting Free VMAs while doing
* the appropriate error checking.
*/
ResultVal<VMAIter> CarveVMA(VAddr base, u64 size);
/**
* Splits the edges of the given range of non-Free VMAs so that there is a VMA split at each
* end of the range.
*/
ResultVal<VMAIter> CarveVMARange(VAddr base, u64 size);
/**
* Splits a VMA in two, at the specified offset.
* @returns the right side of the split, with the original iterator becoming the left side.
*/
VMAIter SplitVMA(VMAIter vma, u64 offset_in_vma);
/**
* Checks for and merges the specified VMA with adjacent ones if possible.
* @returns the merged VMA or the original if no merging was possible.
*/
VMAIter MergeAdjacent(VMAIter vma);
/**
* Merges two adjacent VMAs.
*/
void MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryArea& right);
/// Updates the pages corresponding to this VMA so they match the VMA's attributes.
void UpdatePageTableForVMA(const VirtualMemoryArea& vma);
/// Initializes memory region ranges to adhere to a given address space type.
void InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType type);
/// Clears the underlying map and page table.
void Clear();
/// Clears out the VMA map, unmapping any previously mapped ranges.
void ClearVMAMap();
/// Clears out the page table
void ClearPageTable();
/// Gets the amount of memory currently mapped (state != Unmapped) in a range.
ResultVal<std::size_t> SizeOfAllocatedVMAsInRange(VAddr address, std::size_t size) const;
/// Gets the amount of memory unmappable by UnmapPhysicalMemory in a range.
ResultVal<std::size_t> SizeOfUnmappablePhysicalMemoryInRange(VAddr address,
std::size_t size) const;
/**
* A map covering the entirety of the managed address space, keyed by the `base` field of each
* VMA. It must always be modified by splitting or merging VMAs, so that the invariant
* `elem.base + elem.size == next.base` is preserved, and mergeable regions must always be
* merged when possible so that no two similar and adjacent regions exist that have not been
* merged.
*/
VMAMap vma_map;
u32 address_space_width = 0;
VAddr address_space_base = 0;
VAddr address_space_end = 0;
VAddr aslr_region_base = 0;
VAddr aslr_region_end = 0;
VAddr code_region_base = 0;
VAddr code_region_end = 0;
VAddr heap_region_base = 0;
VAddr heap_region_end = 0;
VAddr map_region_base = 0;
VAddr map_region_end = 0;
VAddr stack_region_base = 0;
VAddr stack_region_end = 0;
VAddr tls_io_region_base = 0;
VAddr tls_io_region_end = 0;
// Memory used to back the allocations in the regular heap. A single vector is used to cover
// the entire virtual address space extents that bound the allocations, including any holes.
// This makes deallocation and reallocation of holes fast and keeps process memory contiguous
// in the emulator address space, allowing Memory::GetPointer to be reasonably safe.
std::shared_ptr<PhysicalMemory> heap_memory;
// The end of the currently allocated heap. This is not an inclusive
// end of the range. This is essentially 'base_address + current_size'.
VAddr heap_end = 0;
// The current amount of memory mapped via MapPhysicalMemory.
// This is used here (and in Nintendo's kernel) only for debugging, and does not impact
// any behavior.
u64 physical_memory_mapped = 0;
Core::System& system;
};
} // namespace Kernel

View file

@ -210,7 +210,7 @@ private:
/// This is the event handle used to check if the audio buffer was released
Kernel::EventPair buffer_event;
Memory::Memory& main_memory;
Core::Memory::Memory& main_memory;
};
AudOutU::AudOutU(Core::System& system_) : ServiceFramework("audout:u"), system{system_} {

View file

@ -14,6 +14,7 @@
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/readable_event.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/writable_event.h"
@ -53,9 +54,7 @@ IAppletResource::IAppletResource(Core::System& system)
RegisterHandlers(functions);
auto& kernel = system.Kernel();
shared_mem = Kernel::SharedMemory::Create(
kernel, nullptr, SHARED_MEMORY_SIZE, Kernel::MemoryPermission::ReadWrite,
Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "HID:SharedMemory");
shared_mem = SharedFrom(&kernel.GetHidSharedMem());
MakeController<Controller_DebugPad>(HidController::DebugPad);
MakeController<Controller_Touchscreen>(HidController::Touchscreen);

View file

@ -6,6 +6,7 @@
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/hid/irs.h"
@ -38,9 +39,8 @@ IRS::IRS(Core::System& system) : ServiceFramework{"irs"}, system(system) {
RegisterHandlers(functions);
auto& kernel = system.Kernel();
shared_mem = Kernel::SharedMemory::Create(
kernel, nullptr, 0x8000, Kernel::MemoryPermission::ReadWrite,
Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "IRS:SharedMemory");
shared_mem = SharedFrom(&kernel.GetIrsSharedMem());
}
void IRS::ActivateIrsensor(Kernel::HLERequestContext& ctx) {

View file

@ -8,14 +8,21 @@
#include "common/alignment.h"
#include "common/hex_util.h"
#include "common/scope_exit.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/memory/system_control.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/ldr/ldr.h"
#include "core/hle/service/service.h"
#include "core/loader/nro.h"
#include "core/memory.h"
namespace Service::LDR {
constexpr ResultCode ERROR_INSUFFICIENT_ADDRESS_SPACE{ErrorModule::RO, 2};
constexpr ResultCode ERROR_INVALID_MEMORY_STATE{ErrorModule::Loader, 51};
constexpr ResultCode ERROR_INVALID_NRO{ErrorModule::Loader, 52};
constexpr ResultCode ERROR_INVALID_NRR{ErrorModule::Loader, 53};
@ -29,7 +36,61 @@ constexpr ResultCode ERROR_INVALID_NRO_ADDRESS{ErrorModule::Loader, 84};
constexpr ResultCode ERROR_INVALID_NRR_ADDRESS{ErrorModule::Loader, 85};
constexpr ResultCode ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87};
constexpr u64 MAXIMUM_LOADED_RO = 0x40;
constexpr std::size_t MAXIMUM_LOADED_RO{0x40};
constexpr std::size_t MAXIMUM_MAP_RETRIES{0x200};
struct NRRHeader {
u32_le magic;
INSERT_PADDING_BYTES(12);
u64_le title_id_mask;
u64_le title_id_pattern;
INSERT_PADDING_BYTES(16);
std::array<u8, 0x100> modulus;
std::array<u8, 0x100> signature_1;
std::array<u8, 0x100> signature_2;
u64_le title_id;
u32_le size;
INSERT_PADDING_BYTES(4);
u32_le hash_offset;
u32_le hash_count;
INSERT_PADDING_BYTES(8);
};
static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has incorrect size.");
struct NROHeader {
INSERT_PADDING_WORDS(1);
u32_le mod_offset;
INSERT_PADDING_WORDS(2);
u32_le magic;
u32_le version;
u32_le nro_size;
u32_le flags;
u32_le text_offset;
u32_le text_size;
u32_le ro_offset;
u32_le ro_size;
u32_le rw_offset;
u32_le rw_size;
u32_le bss_size;
INSERT_PADDING_WORDS(1);
std::array<u8, 0x20> build_id;
INSERT_PADDING_BYTES(0x20);
};
static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size.");
using SHA256Hash = std::array<u8, 0x20>;
struct NROInfo {
SHA256Hash hash{};
VAddr nro_address{};
std::size_t nro_size{};
VAddr bss_address{};
std::size_t bss_size{};
std::size_t text_size{};
std::size_t ro_size{};
std::size_t data_size{};
VAddr src_addr{};
};
class DebugMonitor final : public ServiceFramework<DebugMonitor> {
public:
@ -84,7 +145,7 @@ public:
{0, &RelocatableObject::LoadNro, "LoadNro"},
{1, &RelocatableObject::UnloadNro, "UnloadNro"},
{2, &RelocatableObject::LoadNrr, "LoadNrr"},
{3, &RelocatableObject::UnloadNrr, "UnloadNrr"},
{3, nullptr, "UnloadNrr"},
{4, &RelocatableObject::Initialize, "Initialize"},
{10, nullptr, "LoadNrrEx"},
};
@ -190,46 +251,125 @@ public:
rb.Push(RESULT_SUCCESS);
}
void UnloadNrr(Kernel::HLERequestContext& ctx) {
if (!initialized) {
LOG_ERROR(Service_LDR, "LDR:RO not initialized before use!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_NOT_INITIALIZED);
return;
bool ValidateRegionForMap(Kernel::Memory::PageTable& page_table, VAddr start,
std::size_t size) const {
constexpr std::size_t padding_size{4 * Kernel::Memory::PageSize};
const auto start_info{page_table.QueryInfo(start - 1)};
if (start_info.state != Kernel::Memory::MemoryState::Free) {
return {};
}
struct Parameters {
u64_le process_id;
u64_le nrr_address;
};
IPC::RequestParser rp{ctx};
const auto [process_id, nrr_address] = rp.PopRaw<Parameters>();
LOG_DEBUG(Service_LDR, "called with process_id={:016X}, nrr_addr={:016X}", process_id,
nrr_address);
if (!Common::Is4KBAligned(nrr_address)) {
LOG_ERROR(Service_LDR, "NRR Address has invalid alignment (actual {:016X})!",
nrr_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_ALIGNMENT);
return;
if (start_info.GetAddress() > (start - padding_size)) {
return {};
}
const auto iter = nrr.find(nrr_address);
if (iter == nrr.end()) {
LOG_ERROR(Service_LDR,
"Attempting to unload NRR which has not been loaded! (addr={:016X})",
nrr_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_NRR_ADDRESS);
return;
const auto end_info{page_table.QueryInfo(start + size)};
if (end_info.state != Kernel::Memory::MemoryState::Free) {
return {};
}
nrr.erase(iter);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
return (start + size + padding_size) <= (end_info.GetAddress() + end_info.GetSize());
}
VAddr GetRandomMapRegion(const Kernel::Memory::PageTable& page_table, std::size_t size) const {
VAddr addr{};
const std::size_t end_pages{(page_table.GetAliasCodeRegionSize() - size) >>
Kernel::Memory::PageBits};
do {
addr = page_table.GetAliasCodeRegionStart() +
(Kernel::Memory::SystemControl::GenerateRandomRange(0, end_pages)
<< Kernel::Memory::PageBits);
} while (!page_table.IsInsideAddressSpace(addr, size) ||
page_table.IsInsideHeapRegion(addr, size) ||
page_table.IsInsideAliasRegion(addr, size));
return addr;
}
ResultVal<VAddr> MapProcessCodeMemory(Kernel::Process* process, VAddr baseAddress,
u64 size) const {
for (int retry{}; retry < MAXIMUM_MAP_RETRIES; retry++) {
auto& page_table{process->PageTable()};
const VAddr addr{GetRandomMapRegion(page_table, size)};
const ResultCode result{page_table.MapProcessCodeMemory(addr, baseAddress, size)};
if (result == Kernel::ERR_INVALID_ADDRESS_STATE) {
continue;
}
CASCADE_CODE(result);
if (ValidateRegionForMap(page_table, addr, size)) {
return MakeResult<VAddr>(addr);
}
}
return ERROR_INSUFFICIENT_ADDRESS_SPACE;
}
ResultVal<VAddr> MapNro(Kernel::Process* process, VAddr nro_addr, std::size_t nro_size,
VAddr bss_addr, std::size_t bss_size, std::size_t size) const {
for (int retry{}; retry < MAXIMUM_MAP_RETRIES; retry++) {
auto& page_table{process->PageTable()};
VAddr addr{};
CASCADE_RESULT(addr, MapProcessCodeMemory(process, nro_addr, nro_size));
if (bss_size) {
auto block_guard = detail::ScopeExit([&] {
page_table.UnmapProcessCodeMemory(addr + nro_size, bss_addr, bss_size);
page_table.UnmapProcessCodeMemory(addr, nro_addr, nro_size);
});
const ResultCode result{
page_table.MapProcessCodeMemory(addr + nro_size, bss_addr, bss_size)};
if (result == Kernel::ERR_INVALID_ADDRESS_STATE) {
continue;
}
if (result.IsError()) {
return result;
}
block_guard.Cancel();
}
if (ValidateRegionForMap(page_table, addr, size)) {
return MakeResult<VAddr>(addr);
}
}
return ERROR_INSUFFICIENT_ADDRESS_SPACE;
}
ResultCode LoadNro(Kernel::Process* process, const NROHeader& nro_header, VAddr nro_addr,
VAddr start) const {
const VAddr text_start{start + nro_header.text_offset};
const VAddr ro_start{start + nro_header.ro_offset};
const VAddr data_start{start + nro_header.rw_offset};
const VAddr bss_start{data_start + nro_header.rw_size};
const VAddr bss_end_addr{
Common::AlignUp(bss_start + nro_header.bss_size, Kernel::Memory::PageSize)};
auto CopyCode{[&](VAddr src_addr, VAddr dst_addr, u64 size) {
std::vector<u8> source_data(size);
system.Memory().ReadBlock(src_addr, source_data.data(), source_data.size());
system.Memory().WriteBlock(dst_addr, source_data.data(), source_data.size());
}};
CopyCode(nro_addr + nro_header.text_offset, text_start, nro_header.text_size);
CopyCode(nro_addr + nro_header.ro_offset, ro_start, nro_header.ro_size);
CopyCode(nro_addr + nro_header.rw_offset, data_start, nro_header.rw_size);
CASCADE_CODE(process->PageTable().SetCodeMemoryPermission(
text_start, ro_start - text_start, Kernel::Memory::MemoryPermission::ReadAndExecute));
CASCADE_CODE(process->PageTable().SetCodeMemoryPermission(
ro_start, data_start - ro_start, Kernel::Memory::MemoryPermission::Read));
return process->PageTable().SetCodeMemoryPermission(
data_start, bss_end_addr - data_start, Kernel::Memory::MemoryPermission::ReadAndWrite);
}
void LoadNro(Kernel::HLERequestContext& ctx) {
@ -317,9 +457,9 @@ public:
return;
}
NROHeader header;
// Load and validate the NRO header
NROHeader header{};
std::memcpy(&header, nro_data.data(), sizeof(NROHeader));
if (!IsValidNRO(header, nro_size, bss_size)) {
LOG_ERROR(Service_LDR, "NRO was invalid!");
IPC::ResponseBuilder rb{ctx, 2};
@ -327,62 +467,48 @@ public:
return;
}
// Load NRO as new executable module
auto* process = system.CurrentProcess();
auto& vm_manager = process->VMManager();
auto map_address = vm_manager.FindFreeRegion(nro_size + bss_size);
if (!map_address.Succeeded() ||
*map_address + nro_size + bss_size > vm_manager.GetAddressSpaceEndAddress()) {
LOG_ERROR(Service_LDR,
"General error while allocation memory or no available memory to allocate!");
// Map memory for the NRO
const auto map_result{MapNro(system.CurrentProcess(), nro_address, nro_size, bss_address,
bss_size, nro_size + bss_size)};
if (map_result.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_MEMORY_STATE);
return;
rb.Push(map_result.Code());
}
// Mark text and read-only region as ModuleCode
ASSERT(vm_manager
.MirrorMemory(*map_address, nro_address, header.text_size + header.ro_size,
Kernel::MemoryState::ModuleCode)
.IsSuccess());
// Mark read/write region as ModuleCodeData, which is necessary if this region is used for
// TransferMemory (e.g. Final Fantasy VIII Remastered does this)
ASSERT(vm_manager
.MirrorMemory(*map_address + header.rw_offset, nro_address + header.rw_offset,
header.rw_size, Kernel::MemoryState::ModuleCodeData)
.IsSuccess());
// Revoke permissions from the old memory region
ASSERT(vm_manager.ReprotectRange(nro_address, nro_size, Kernel::VMAPermission::None)
.IsSuccess());
if (bss_size > 0) {
// Mark BSS region as ModuleCodeData, which is necessary if this region is used for
// TransferMemory (e.g. Final Fantasy VIII Remastered does this)
ASSERT(vm_manager
.MirrorMemory(*map_address + nro_size, bss_address, bss_size,
Kernel::MemoryState::ModuleCodeData)
.IsSuccess());
ASSERT(vm_manager.ReprotectRange(bss_address, bss_size, Kernel::VMAPermission::None)
.IsSuccess());
// Load the NRO into the mapped memory
if (const auto result{LoadNro(system.CurrentProcess(), header, nro_address, *map_result)};
result.IsError()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(map_result.Code());
}
vm_manager.ReprotectRange(*map_address, header.text_size,
Kernel::VMAPermission::ReadExecute);
vm_manager.ReprotectRange(*map_address + header.ro_offset, header.ro_size,
Kernel::VMAPermission::Read);
vm_manager.ReprotectRange(*map_address + header.rw_offset, header.rw_size,
Kernel::VMAPermission::ReadWrite);
// Track the loaded NRO
nro.insert_or_assign(*map_result, NROInfo{hash, *map_result, nro_size, bss_address,
bss_size, header.text_size, header.ro_size,
header.rw_size, nro_address});
// Invalidate JIT caches for the newly mapped process code
system.InvalidateCpuInstructionCaches();
nro.insert_or_assign(*map_address,
NROInfo{hash, nro_address, nro_size, bss_address, bss_size});
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
rb.Push(*map_address);
rb.Push(*map_result);
}
ResultCode UnmapNro(const NROInfo& info) {
// Each region must be unmapped separately to validate memory state
auto& page_table{system.CurrentProcess()->PageTable()};
CASCADE_CODE(page_table.UnmapProcessCodeMemory(info.nro_address + info.text_size +
info.ro_size + info.data_size,
info.bss_address, info.bss_size));
CASCADE_CODE(page_table.UnmapProcessCodeMemory(
info.nro_address + info.text_size + info.ro_size,
info.src_addr + info.text_size + info.ro_size, info.data_size));
CASCADE_CODE(page_table.UnmapProcessCodeMemory(
info.nro_address + info.text_size, info.src_addr + info.text_size, info.ro_size));
CASCADE_CODE(
page_table.UnmapProcessCodeMemory(info.nro_address, info.src_addr, info.text_size));
return RESULT_SUCCESS;
}
void UnloadNro(Kernel::HLERequestContext& ctx) {
@ -422,30 +548,15 @@ public:
return;
}
auto& vm_manager = system.CurrentProcess()->VMManager();
const auto& nro_info = iter->second;
// Unmap the mirrored memory
ASSERT(
vm_manager.UnmapRange(nro_address, nro_info.nro_size + nro_info.bss_size).IsSuccess());
// Reprotect the source memory
ASSERT(vm_manager
.ReprotectRange(nro_info.nro_address, nro_info.nro_size,
Kernel::VMAPermission::ReadWrite)
.IsSuccess());
if (nro_info.bss_size > 0) {
ASSERT(vm_manager
.ReprotectRange(nro_info.bss_address, nro_info.bss_size,
Kernel::VMAPermission::ReadWrite)
.IsSuccess());
}
const auto result{UnmapNro(iter->second)};
system.InvalidateCpuInstructionCaches();
nro.erase(iter);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
rb.Push(result);
}
void Initialize(Kernel::HLERequestContext& ctx) {
@ -458,56 +569,7 @@ public:
}
private:
using SHA256Hash = std::array<u8, 0x20>;
struct NROHeader {
INSERT_PADDING_WORDS(1);
u32_le mod_offset;
INSERT_PADDING_WORDS(2);
u32_le magic;
u32_le version;
u32_le nro_size;
u32_le flags;
u32_le text_offset;
u32_le text_size;
u32_le ro_offset;
u32_le ro_size;
u32_le rw_offset;
u32_le rw_size;
u32_le bss_size;
INSERT_PADDING_WORDS(1);
std::array<u8, 0x20> build_id;
INSERT_PADDING_BYTES(0x20);
};
static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size.");
struct NRRHeader {
u32_le magic;
INSERT_PADDING_BYTES(12);
u64_le title_id_mask;
u64_le title_id_pattern;
INSERT_PADDING_BYTES(16);
std::array<u8, 0x100> modulus;
std::array<u8, 0x100> signature_1;
std::array<u8, 0x100> signature_2;
u64_le title_id;
u32_le size;
INSERT_PADDING_BYTES(4);
u32_le hash_offset;
u32_le hash_count;
INSERT_PADDING_BYTES(8);
};
static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has incorrect size.");
struct NROInfo {
SHA256Hash hash;
VAddr nro_address;
u64 nro_size;
VAddr bss_address;
u64 bss_size;
};
bool initialized = false;
bool initialized{};
std::map<VAddr, NROInfo> nro;
std::map<VAddr, std::vector<SHA256Hash>> nrr;

View file

@ -17,7 +17,7 @@ namespace Service::LM {
class ILogger final : public ServiceFramework<ILogger> {
public:
explicit ILogger(Manager& manager_, Memory::Memory& memory_)
explicit ILogger(Manager& manager_, Core::Memory::Memory& memory_)
: ServiceFramework("ILogger"), manager{manager_}, memory{memory_} {
static const FunctionInfo functions[] = {
{0, &ILogger::Log, "Log"},
@ -75,12 +75,12 @@ private:
}
Manager& manager;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
class LM final : public ServiceFramework<LM> {
public:
explicit LM(Manager& manager_, Memory::Memory& memory_)
explicit LM(Manager& manager_, Core::Memory::Memory& memory_)
: ServiceFramework{"lm"}, manager{manager_}, memory{memory_} {
// clang-format off
static const FunctionInfo functions[] = {
@ -101,7 +101,7 @@ private:
}
Manager& manager;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
void InstallInterfaces(Core::System& system) {

View file

@ -19,6 +19,7 @@
#include "core/file_sys/romfs.h"
#include "core/file_sys/system_archive/system_archive.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/filesystem/filesystem.h"
@ -265,16 +266,13 @@ void PL_U::GetSharedMemoryAddressOffset(Kernel::HLERequestContext& ctx) {
void PL_U::GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx) {
// Map backing memory for the font data
LOG_DEBUG(Service_NS, "called");
system.CurrentProcess()->VMManager().MapMemoryBlock(SHARED_FONT_MEM_VADDR, impl->shared_font, 0,
SHARED_FONT_MEM_SIZE,
Kernel::MemoryState::Shared);
// Create shared font memory object
auto& kernel = system.Kernel();
impl->shared_font_mem = Kernel::SharedMemory::Create(
kernel, system.CurrentProcess(), SHARED_FONT_MEM_SIZE, Kernel::MemoryPermission::ReadWrite,
Kernel::MemoryPermission::Read, SHARED_FONT_MEM_VADDR, Kernel::MemoryRegion::BASE,
"PL_U:shared_font_mem");
impl->shared_font_mem = SharedFrom(&kernel.GetFontSharedMem());
std::memcpy(impl->shared_font_mem->GetPointer(), impl->shared_font->data(),
impl->shared_font->size());
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);

View file

@ -6,6 +6,7 @@
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/service/time/clock_types.h"
#include "core/hle/service/time/steady_clock_core.h"
#include "core/hle/service/time/time_sharedmemory.h"
@ -15,9 +16,7 @@ namespace Service::Time {
static constexpr std::size_t SHARED_MEMORY_SIZE{0x1000};
SharedMemory::SharedMemory(Core::System& system) : system(system) {
shared_memory_holder = Kernel::SharedMemory::Create(
system.Kernel(), nullptr, SHARED_MEMORY_SIZE, Kernel::MemoryPermission::ReadWrite,
Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "Time:SharedMemory");
shared_memory_holder = SharedFrom(&system.Kernel().GetTimeSharedMem());
std::memset(shared_memory_holder->GetPointer(), 0, SHARED_MEMORY_SIZE);
}

View file

@ -14,6 +14,7 @@
#include "core/file_sys/romfs_factory.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
@ -129,27 +130,47 @@ AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirect
}
metadata.Print();
if (process.LoadFromMetadata(metadata).IsError()) {
return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
}
const auto static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"};
const FileSys::PatchManager pm(metadata.GetTitleID());
// Load NSO modules
modules.clear();
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
VAddr next_load_addr = base_address;
for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
const FileSys::VirtualFile module_file = dir->GetFile(module);
if (module_file == nullptr) {
// Use the NSO module loader to figure out the code layout
std::size_t code_size{};
for (const auto& module : static_modules) {
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
}
const VAddr load_addr = next_load_addr;
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
const auto tentative_next_load_addr =
AppLoader_NSO::LoadModule(process, *module_file, load_addr, should_pass_arguments, pm);
const bool should_pass_arguments{std::strcmp(module, "rtld") == 0};
const auto tentative_next_load_addr{AppLoader_NSO::LoadModule(
process, *module_file, code_size, should_pass_arguments, false)};
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
code_size = *tentative_next_load_addr;
}
// Setup the process code layout
if (process.LoadFromMetadata(metadata, code_size).IsError()) {
return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
}
// Load NSO modules
modules.clear();
const VAddr base_address{process.PageTable().GetCodeRegionStart()};
VAddr next_load_addr{base_address};
const FileSys::PatchManager pm{metadata.GetTitleID()};
for (const auto& module : static_modules) {
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
}
const VAddr load_addr{next_load_addr};
const bool should_pass_arguments{std::strcmp(module, "rtld") == 0};
const auto tentative_next_load_addr{AppLoader_NSO::LoadModule(
process, *module_file, load_addr, should_pass_arguments, true, pm)};
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}

View file

@ -10,8 +10,8 @@
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/elf.h"
#include "core/memory.h"
@ -393,7 +393,7 @@ AppLoader_ELF::LoadResult AppLoader_ELF::Load(Kernel::Process& process) {
return {ResultStatus::ErrorIncorrectELFFileSize, {}};
}
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
const VAddr base_address = process.PageTable().GetCodeRegionStart();
ElfReader elf_reader(&buffer[0]);
Kernel::CodeSet codeset = elf_reader.LoadInto(base_address);
const VAddr entry_point = codeset.entrypoint;
@ -401,7 +401,7 @@ AppLoader_ELF::LoadResult AppLoader_ELF::Load(Kernel::Process& process) {
process.LoadModule(std::move(codeset), entry_point);
is_loaded = true;
return {ResultStatus::Success, LoadParameters{48, Memory::DEFAULT_STACK_SIZE}};
return {ResultStatus::Success, LoadParameters{48, Core::Memory::DEFAULT_STACK_SIZE}};
}
} // namespace Loader

View file

@ -7,14 +7,16 @@
#include "core/file_sys/program_metadata.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/loader/kip.h"
#include "core/memory.h"
namespace Loader {
namespace {
constexpr u32 PageAlignSize(u32 size) {
return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
return (size + Core::Memory::PAGE_MASK) & ~Core::Memory::PAGE_MASK;
}
} // Anonymous namespace
@ -68,7 +70,7 @@ AppLoader::LoadResult AppLoader_KIP::Load(Kernel::Process& process) {
kip->GetMainThreadCpuCore(), kip->GetMainThreadStackSize(),
kip->GetTitleID(), 0xFFFFFFFFFFFFFFFF, kip->GetKernelCapabilities());
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
const VAddr base_address = process.PageTable().GetCodeRegionStart();
Kernel::CodeSet codeset;
Kernel::PhysicalMemory program_image;

View file

@ -16,8 +16,8 @@
#include "core/file_sys/vfs_offset.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/nro.h"
#include "core/loader/nso.h"
@ -127,7 +127,7 @@ FileType AppLoader_NRO::IdentifyType(const FileSys::VirtualFile& file) {
}
static constexpr u32 PageAlignSize(u32 size) {
return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
return (size + Core::Memory::PAGE_MASK) & ~Core::Memory::PAGE_MASK;
}
static bool LoadNroImpl(Kernel::Process& process, const std::vector<u8>& data,
@ -208,7 +208,7 @@ AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::Process& process) {
}
// Load NRO
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
const VAddr base_address = process.PageTable().GetCodeRegionStart();
if (!LoadNro(process, *file, base_address)) {
return {ResultStatus::ErrorLoadingNRO, {}};
@ -221,7 +221,7 @@ AppLoader_NRO::LoadResult AppLoader_NRO::Load(Kernel::Process& process) {
is_loaded = true;
return {ResultStatus::Success,
LoadParameters{Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE}};
LoadParameters{Kernel::THREADPRIO_DEFAULT, Core::Memory::DEFAULT_STACK_SIZE}};
}
ResultStatus AppLoader_NRO::ReadIcon(std::vector<u8>& buffer) {

View file

@ -16,8 +16,8 @@
#include "core/file_sys/patch_manager.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nso.h"
#include "core/memory.h"
#include "core/settings.h"
@ -47,7 +47,7 @@ std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
}
constexpr u32 PageAlignSize(u32 size) {
return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
return (size + Core::Memory::PAGE_MASK) & ~Core::Memory::PAGE_MASK;
}
} // Anonymous namespace
@ -73,7 +73,7 @@ FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) {
std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
const FileSys::VfsFile& file, VAddr load_base,
bool should_pass_arguments,
bool should_pass_arguments, bool load_into_process,
std::optional<FileSys::PatchManager> pm) {
if (file.GetSize() < sizeof(NSOHeader)) {
return {};
@ -97,21 +97,17 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
if (nso_header.IsSegmentCompressed(i)) {
data = DecompressSegment(data, nso_header.segments[i]);
}
program_image.resize(nso_header.segments[i].location +
PageAlignSize(static_cast<u32>(data.size())));
program_image.resize(nso_header.segments[i].location + static_cast<u32>(data.size()));
std::memcpy(program_image.data() + nso_header.segments[i].location, data.data(),
data.size());
codeset.segments[i].addr = nso_header.segments[i].location;
codeset.segments[i].offset = nso_header.segments[i].location;
codeset.segments[i].size = PageAlignSize(static_cast<u32>(data.size()));
codeset.segments[i].size = nso_header.segments[i].size;
}
if (should_pass_arguments) {
std::vector<u8> arg_data{Settings::values.program_args.begin(),
Settings::values.program_args.end()};
if (arg_data.empty()) {
arg_data.resize(NSO_ARGUMENT_DEFAULT_SIZE);
}
if (should_pass_arguments && !Settings::values.program_args.empty()) {
const auto arg_data{Settings::values.program_args};
codeset.DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
NSOArgumentHeader args_header{
NSO_ARGUMENT_DATA_ALLOCATION_SIZE, static_cast<u32_le>(arg_data.size()), {}};
@ -123,24 +119,15 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
arg_data.size());
}
// MOD header pointer is at .text offset + 4
u32 module_offset;
std::memcpy(&module_offset, program_image.data() + 4, sizeof(u32));
// Read MOD header
MODHeader mod_header{};
// Default .bss to size in segment header if MOD0 section doesn't exist
u32 bss_size{PageAlignSize(nso_header.segments[2].bss_size)};
std::memcpy(&mod_header, program_image.data() + module_offset, sizeof(MODHeader));
const bool has_mod_header{mod_header.magic == Common::MakeMagic('M', 'O', 'D', '0')};
if (has_mod_header) {
// Resize program image to include .bss section and page align each section
bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
}
codeset.DataSegment().size += bss_size;
const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)};
codeset.DataSegment().size += nso_header.segments[2].bss_size;
const u32 image_size{
PageAlignSize(static_cast<u32>(program_image.size()) + nso_header.segments[2].bss_size)};
program_image.resize(image_size);
for (std::size_t i = 0; i < nso_header.segments.size(); ++i) {
codeset.segments[i].size = PageAlignSize(codeset.segments[i].size);
}
// Apply patches if necessary
if (pm && (pm->HasNSOPatch(nso_header.build_id) || Settings::values.dump_nso)) {
std::vector<u8> pi_header;
@ -154,6 +141,11 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
std::copy(pi_header.begin() + sizeof(NSOHeader), pi_header.end(), program_image.data());
}
// If we aren't actually loading (i.e. just computing the process code layout), we are done
if (!load_into_process) {
return load_base + image_size;
}
// Apply cheats if they exist and the program has a valid title ID
if (pm) {
auto& system = Core::System::GetInstance();
@ -182,8 +174,8 @@ AppLoader_NSO::LoadResult AppLoader_NSO::Load(Kernel::Process& process) {
modules.clear();
// Load module
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
if (!LoadModule(process, *file, base_address, true)) {
const VAddr base_address = process.PageTable().GetCodeRegionStart();
if (!LoadModule(process, *file, base_address, true, true)) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
@ -192,7 +184,7 @@ AppLoader_NSO::LoadResult AppLoader_NSO::Load(Kernel::Process& process) {
is_loaded = true;
return {ResultStatus::Success,
LoadParameters{Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE}};
LoadParameters{Kernel::THREADPRIO_DEFAULT, Core::Memory::DEFAULT_STACK_SIZE}};
}
ResultStatus AppLoader_NSO::ReadNSOModules(Modules& modules) {

View file

@ -56,8 +56,6 @@ static_assert(sizeof(NSOHeader) == 0x100, "NSOHeader has incorrect size.");
static_assert(std::is_trivially_copyable_v<NSOHeader>, "NSOHeader must be trivially copyable.");
constexpr u64 NSO_ARGUMENT_DATA_ALLOCATION_SIZE = 0x9000;
// NOTE: Official software default argument state is unverified.
constexpr u64 NSO_ARGUMENT_DEFAULT_SIZE = 1;
struct NSOArgumentHeader {
u32_le allocated_size;
@ -84,6 +82,7 @@ public:
static std::optional<VAddr> LoadModule(Kernel::Process& process, const FileSys::VfsFile& file,
VAddr load_base, bool should_pass_arguments,
bool load_into_process,
std::optional<FileSys::PatchManager> pm = {});
LoadResult Load(Kernel::Process& process) override;

View file

@ -14,13 +14,14 @@
#include "common/swap.h"
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/device_memory.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
#include "video_core/gpu.h"
namespace Memory {
namespace Core::Memory {
// Implementation class used to keep the specifics of the memory subsystem hidden
// from outside classes. This also allows modification to the internals of the memory
@ -29,9 +30,9 @@ struct Memory::Impl {
explicit Impl(Core::System& system_) : system{system_} {}
void SetCurrentPageTable(Kernel::Process& process) {
current_page_table = &process.VMManager().page_table;
current_page_table = &process.PageTable().PageTableImpl();
const std::size_t address_space_width = process.VMManager().GetAddressSpaceWidth();
const std::size_t address_space_width = process.PageTable().GetAddressSpaceWidth();
system.ArmInterface(0).PageTableChanged(*current_page_table, address_space_width);
system.ArmInterface(1).PageTableChanged(*current_page_table, address_space_width);
@ -39,12 +40,7 @@ struct Memory::Impl {
system.ArmInterface(3).PageTableChanged(*current_page_table, address_space_width);
}
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size,
Kernel::PhysicalMemory& memory, VAddr offset) {
MapMemoryRegion(page_table, base, size, memory.data() + offset);
}
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) {
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory);
@ -52,46 +48,27 @@ struct Memory::Impl {
void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr,
Common::PageType::Special);
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::IODevice,
std::move(mmio_handler)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
UNIMPLEMENTED();
}
void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr,
Common::PageType::Unmapped);
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
page_table.special_regions.erase(interval);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, 0, Common::PageType::Unmapped);
}
void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
UNIMPLEMENTED();
}
void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.subtract(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
UNIMPLEMENTED();
}
bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) const {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
const u8* const page_pointer = page_table.pointers[vaddr >> PAGE_BITS];
if (page_pointer != nullptr) {
@ -113,55 +90,28 @@ struct Memory::Impl {
return IsValidVirtualAddress(*system.CurrentProcess(), vaddr);
}
/**
* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
* using a VMA from the current process
*/
u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
const auto& vm_manager = process.VMManager();
u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const {
const PAddr paddr{current_page_table->backing_addr[vaddr >> PAGE_BITS]};
const auto it = vm_manager.FindVMA(vaddr);
DEBUG_ASSERT(vm_manager.IsValidHandle(it));
u8* direct_pointer = nullptr;
const auto& vma = it->second;
switch (vma.type) {
case Kernel::VMAType::AllocatedMemoryBlock:
direct_pointer = vma.backing_block->data() + vma.offset;
break;
case Kernel::VMAType::BackingMemory:
direct_pointer = vma.backing_memory;
break;
case Kernel::VMAType::Free:
return nullptr;
default:
UNREACHABLE();
if (!paddr) {
return {};
}
return direct_pointer + (vaddr - vma.base);
return system.DeviceMemory().GetPointer(paddr) + vaddr;
}
/**
* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
* using a VMA from the current process.
*/
u8* GetPointerFromVMA(VAddr vaddr) {
return GetPointerFromVMA(*system.CurrentProcess(), vaddr);
}
u8* GetPointer(const VAddr vaddr) {
u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
if (page_pointer != nullptr) {
u8* GetPointer(const VAddr vaddr) const {
u8* const page_pointer{current_page_table->pointers[vaddr >> PAGE_BITS]};
if (page_pointer) {
return page_pointer + vaddr;
}
if (current_page_table->attributes[vaddr >> PAGE_BITS] ==
Common::PageType::RasterizerCachedMemory) {
return GetPointerFromVMA(vaddr);
return GetPointerFromRasterizerCachedMemory(vaddr);
}
LOG_ERROR(HW_Memory, "Unknown GetPointer @ 0x{:016X}", vaddr);
return nullptr;
return {};
}
u8 Read8(const VAddr addr) {
@ -169,15 +119,33 @@ struct Memory::Impl {
}
u16 Read16(const VAddr addr) {
if ((addr & 1) == 0) {
return Read<u16_le>(addr);
} else {
const u8 a{Read<u8>(addr)};
const u8 b{Read<u8>(addr + sizeof(u8))};
return (static_cast<u16>(b) << 8) | a;
}
}
u32 Read32(const VAddr addr) {
if ((addr & 3) == 0) {
return Read<u32_le>(addr);
} else {
const u16 a{Read16(addr)};
const u16 b{Read16(addr + sizeof(u16))};
return (static_cast<u32>(b) << 16) | a;
}
}
u64 Read64(const VAddr addr) {
if ((addr & 7) == 0) {
return Read<u64_le>(addr);
} else {
const u32 a{Read32(addr)};
const u32 b{Read32(addr + sizeof(u32))};
return (static_cast<u64>(b) << 32) | a;
}
}
void Write8(const VAddr addr, const u8 data) {
@ -185,15 +153,30 @@ struct Memory::Impl {
}
void Write16(const VAddr addr, const u16 data) {
if ((addr & 1) == 0) {
Write<u16_le>(addr, data);
} else {
Write<u8>(addr, static_cast<u8>(data));
Write<u8>(addr + sizeof(u8), static_cast<u8>(data >> 8));
}
}
void Write32(const VAddr addr, const u32 data) {
if ((addr & 3) == 0) {
Write<u32_le>(addr, data);
} else {
Write16(addr, static_cast<u16>(data));
Write16(addr + sizeof(u16), static_cast<u16>(data >> 16));
}
}
void Write64(const VAddr addr, const u64 data) {
if ((addr & 7) == 0) {
Write<u64_le>(addr, data);
} else {
Write32(addr, static_cast<u32>(data));
Write32(addr + sizeof(u32), static_cast<u32>(data >> 32));
}
}
std::string ReadCString(VAddr vaddr, std::size_t max_length) {
@ -213,7 +196,7 @@ struct Memory::Impl {
void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = src_addr >> PAGE_BITS;
@ -241,7 +224,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
const u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
system.GPU().FlushRegion(current_vaddr, copy_amount);
std::memcpy(dest_buffer, host_ptr, copy_amount);
break;
@ -259,7 +242,7 @@ struct Memory::Impl {
void ReadBlockUnsafe(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = src_addr >> PAGE_BITS;
@ -287,7 +270,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
const u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
std::memcpy(dest_buffer, host_ptr, copy_amount);
break;
}
@ -312,7 +295,7 @@ struct Memory::Impl {
void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = dest_addr >> PAGE_BITS;
std::size_t page_offset = dest_addr & PAGE_MASK;
@ -338,7 +321,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
system.GPU().InvalidateRegion(current_vaddr, copy_amount);
std::memcpy(host_ptr, src_buffer, copy_amount);
break;
@ -356,7 +339,7 @@ struct Memory::Impl {
void WriteBlockUnsafe(const Kernel::Process& process, const VAddr dest_addr,
const void* src_buffer, const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = dest_addr >> PAGE_BITS;
std::size_t page_offset = dest_addr & PAGE_MASK;
@ -382,7 +365,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
std::memcpy(host_ptr, src_buffer, copy_amount);
break;
}
@ -406,7 +389,7 @@ struct Memory::Impl {
}
void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = dest_addr >> PAGE_BITS;
std::size_t page_offset = dest_addr & PAGE_MASK;
@ -432,7 +415,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
system.GPU().InvalidateRegion(current_vaddr, copy_amount);
std::memset(host_ptr, 0, copy_amount);
break;
@ -453,7 +436,7 @@ struct Memory::Impl {
void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
const auto& page_table = process.PageTable().PageTableImpl();
std::size_t remaining_size = size;
std::size_t page_index = src_addr >> PAGE_BITS;
std::size_t page_offset = src_addr & PAGE_MASK;
@ -479,7 +462,7 @@ struct Memory::Impl {
break;
}
case Common::PageType::RasterizerCachedMemory: {
const u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
system.GPU().FlushRegion(current_vaddr, copy_amount);
WriteBlock(process, dest_addr, host_ptr, copy_amount);
break;
@ -512,7 +495,7 @@ struct Memory::Impl {
u64 num_pages = ((vaddr + size - 1) >> PAGE_BITS) - (vaddr >> PAGE_BITS) + 1;
for (unsigned i = 0; i < num_pages; ++i, vaddr += PAGE_SIZE) {
Common::PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS];
Common::PageType& page_type{current_page_table->attributes[vaddr >> PAGE_BITS]};
if (cached) {
// Switch page type to cached if now cached
@ -544,7 +527,7 @@ struct Memory::Impl {
// that this area is already unmarked as cached.
break;
case Common::PageType::RasterizerCachedMemory: {
u8* pointer = GetPointerFromVMA(vaddr & ~PAGE_MASK);
u8* pointer{GetPointerFromRasterizerCachedMemory(vaddr & ~PAGE_MASK)};
if (pointer == nullptr) {
// It's possible that this function has been called while updating the
// pagetable after unmapping a VMA. In that case the underlying VMA will no
@ -573,9 +556,9 @@ struct Memory::Impl {
* @param memory The memory to map.
* @param type The page type to map the memory as.
*/
void MapPages(Common::PageTable& page_table, VAddr base, u64 size, u8* memory,
void MapPages(Common::PageTable& page_table, VAddr base, u64 size, PAddr target,
Common::PageType type) {
LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE,
LOG_DEBUG(HW_Memory, "Mapping {:016X} onto {:016X}-{:016X}", target, base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
// During boot, current_page_table might not be set yet, in which case we need not flush
@ -593,19 +576,26 @@ struct Memory::Impl {
ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
base + page_table.pointers.size());
std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type);
if (!target) {
while (base != end) {
page_table.pointers[base] = nullptr;
page_table.attributes[base] = type;
page_table.backing_addr[base] = 0;
if (memory == nullptr) {
std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end,
memory);
base += 1;
}
} else {
while (base != end) {
page_table.pointers[base] = memory - (base << PAGE_BITS);
page_table.pointers[base] =
system.DeviceMemory().GetPointer(target) - (base << PAGE_BITS);
page_table.attributes[base] = type;
page_table.backing_addr[base] = target - (base << PAGE_BITS);
ASSERT_MSG(page_table.pointers[base],
"memory mapping base yield a nullptr within the table");
base += 1;
memory += PAGE_SIZE;
target += PAGE_SIZE;
}
}
}
@ -640,7 +630,7 @@ struct Memory::Impl {
ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
break;
case Common::PageType::RasterizerCachedMemory: {
const u8* const host_ptr = GetPointerFromVMA(vaddr);
const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)};
system.GPU().FlushRegion(vaddr, sizeof(T));
T value;
std::memcpy(&value, host_ptr, sizeof(T));
@ -682,7 +672,7 @@ struct Memory::Impl {
ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
break;
case Common::PageType::RasterizerCachedMemory: {
u8* const host_ptr{GetPointerFromVMA(vaddr)};
u8* const host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)};
system.GPU().InvalidateRegion(vaddr, sizeof(T));
std::memcpy(host_ptr, &data, sizeof(T));
break;
@ -703,12 +693,7 @@ void Memory::SetCurrentPageTable(Kernel::Process& process) {
impl->SetCurrentPageTable(process);
}
void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size,
Kernel::PhysicalMemory& memory, VAddr offset) {
impl->MapMemoryRegion(page_table, base, size, memory, offset);
}
void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) {
void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) {
impl->MapMemoryRegion(page_table, base, size, target);
}
@ -845,4 +830,4 @@ bool IsKernelVirtualAddress(const VAddr vaddr) {
return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END;
}
} // namespace Memory
} // namespace Core::Memory

View file

@ -23,7 +23,7 @@ class PhysicalMemory;
class Process;
} // namespace Kernel
namespace Memory {
namespace Core::Memory {
/**
* Page size used by the ARM architecture. This is the smallest granularity with which memory can
@ -66,19 +66,6 @@ public:
*/
void SetCurrentPageTable(Kernel::Process& process);
/**
* Maps an physical buffer onto a region of the emulated process address space.
*
* @param page_table The page table of the emulated process.
* @param base The address to start mapping at. Must be page-aligned.
* @param size The amount of bytes to map. Must be page-aligned.
* @param memory Physical buffer with the memory backing the mapping. Must be of length
* at least `size + offset`.
* @param offset The offset within the physical memory. Must be page-aligned.
*/
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size,
Kernel::PhysicalMemory& memory, VAddr offset);
/**
* Maps an allocated buffer onto a region of the emulated process address space.
*
@ -88,7 +75,7 @@ public:
* @param target Buffer with the memory backing the mapping. Must be of length at least
* `size`.
*/
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target);
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target);
/**
* Maps a region of the emulated process address space as a IO region.
@ -503,4 +490,4 @@ private:
/// Determines if the given VAddr is a kernel address
bool IsKernelVirtualAddress(VAddr vaddr);
} // namespace Memory
} // namespace Core::Memory

View file

@ -10,13 +10,15 @@
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/hid/controllers/npad.h"
#include "core/hle/service/hid/hid.h"
#include "core/hle/service/sm/sm.h"
#include "core/memory.h"
#include "core/memory/cheat_engine.h"
namespace Memory {
namespace Core::Memory {
constexpr s64 CHEAT_ENGINE_TICKS = static_cast<s64>(Core::Hardware::BASE_CLOCK_RATE / 12);
constexpr u32 KEYPAD_BITMASK = 0x3FFFFFF;
@ -194,11 +196,12 @@ void CheatEngine::Initialize() {
metadata.process_id = system.CurrentProcess()->GetProcessID();
metadata.title_id = system.CurrentProcess()->GetTitleID();
const auto& vm_manager = system.CurrentProcess()->VMManager();
metadata.heap_extents = {vm_manager.GetHeapRegionBaseAddress(), vm_manager.GetHeapRegionSize()};
metadata.address_space_extents = {vm_manager.GetAddressSpaceBaseAddress(),
vm_manager.GetAddressSpaceSize()};
metadata.alias_extents = {vm_manager.GetMapRegionBaseAddress(), vm_manager.GetMapRegionSize()};
const auto& page_table = system.CurrentProcess()->PageTable();
metadata.heap_extents = {page_table.GetHeapRegionStart(), page_table.GetHeapRegionSize()};
metadata.address_space_extents = {page_table.GetAddressSpaceStart(),
page_table.GetAddressSpaceSize()};
metadata.alias_extents = {page_table.GetAliasCodeRegionStart(),
page_table.GetAliasCodeRegionSize()};
is_pending_reload.exchange(true);
}
@ -230,4 +233,4 @@ void CheatEngine::FrameCallback(u64 userdata, s64 cycles_late) {
core_timing.ScheduleEvent(CHEAT_ENGINE_TICKS - cycles_late, event);
}
} // namespace Memory
} // namespace Core::Memory

View file

@ -20,7 +20,7 @@ class CoreTiming;
struct EventType;
} // namespace Core::Timing
namespace Memory {
namespace Core::Memory {
class StandardVmCallbacks : public DmntCheatVm::Callbacks {
public:
@ -84,4 +84,4 @@ private:
Core::System& system;
};
} // namespace Memory
} // namespace Core::Memory

View file

@ -26,7 +26,7 @@
#include "common/common_types.h"
namespace Memory {
namespace Core::Memory {
struct MemoryRegionExtents {
u64 base{};
@ -55,4 +55,4 @@ struct CheatEntry {
CheatDefinition definition{};
};
} // namespace Memory
} // namespace Core::Memory

View file

@ -27,7 +27,7 @@
#include "core/memory/dmnt_cheat_types.h"
#include "core/memory/dmnt_cheat_vm.h"
namespace Memory {
namespace Core::Memory {
DmntCheatVm::DmntCheatVm(std::unique_ptr<Callbacks> callbacks) : callbacks(std::move(callbacks)) {}
@ -1210,4 +1210,4 @@ void DmntCheatVm::Execute(const CheatProcessMetadata& metadata) {
}
}
} // namespace Memory
} // namespace Core::Memory

View file

@ -30,7 +30,7 @@
#include "common/common_types.h"
#include "core/memory/dmnt_cheat_types.h"
namespace Memory {
namespace Core::Memory {
enum class CheatVmOpcodeType : u32 {
StoreStatic = 0,
@ -318,4 +318,4 @@ private:
MemoryAccessType mem_type, u64 rel_address);
};
}; // namespace Memory
}; // namespace Core::Memory

View file

@ -16,9 +16,11 @@
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/result.h"
#include "core/hle/service/lm/manager.h"
#include "core/memory.h"
#include "core/reporter.h"
#include "core/settings.h"
@ -108,14 +110,13 @@ json GetProcessorStateData(const std::string& architecture, u64 entry_point, u64
json GetProcessorStateDataAuto(Core::System& system) {
const auto* process{system.CurrentProcess()};
const auto& vm_manager{process->VMManager()};
auto& arm{system.CurrentArmInterface()};
Core::ARM_Interface::ThreadContext64 context{};
arm.SaveContext(context);
return GetProcessorStateData(process->Is64BitProcess() ? "AArch64" : "AArch32",
vm_manager.GetCodeRegionBaseAddress(), context.sp, context.pc,
process->PageTable().GetCodeRegionStart(), context.sp, context.pc,
context.pstate, context.cpu_registers);
}
@ -147,7 +148,8 @@ json GetFullDataAuto(const std::string& timestamp, u64 title_id, Core::System& s
}
template <bool read_value, typename DescriptorType>
json GetHLEBufferDescriptorData(const std::vector<DescriptorType>& buffer, Memory::Memory& memory) {
json GetHLEBufferDescriptorData(const std::vector<DescriptorType>& buffer,
Core::Memory::Memory& memory) {
auto buffer_out = json::array();
for (const auto& desc : buffer) {
auto entry = json{
@ -167,7 +169,7 @@ json GetHLEBufferDescriptorData(const std::vector<DescriptorType>& buffer, Memor
return buffer_out;
}
json GetHLERequestContextData(Kernel::HLERequestContext& ctx, Memory::Memory& memory) {
json GetHLERequestContextData(Kernel::HLERequestContext& ctx, Core::Memory::Memory& memory) {
json out;
auto cmd_buf = json::array();

View file

@ -16,7 +16,7 @@ namespace {
constexpr s64 MEMORY_FREEZER_TICKS = static_cast<s64>(Core::Hardware::BASE_CLOCK_RATE / 60);
u64 MemoryReadWidth(Memory::Memory& memory, u32 width, VAddr addr) {
u64 MemoryReadWidth(Core::Memory::Memory& memory, u32 width, VAddr addr) {
switch (width) {
case 1:
return memory.Read8(addr);
@ -32,7 +32,7 @@ u64 MemoryReadWidth(Memory::Memory& memory, u32 width, VAddr addr) {
}
}
void MemoryWriteWidth(Memory::Memory& memory, u32 width, VAddr addr, u64 value) {
void MemoryWriteWidth(Core::Memory::Memory& memory, u32 width, VAddr addr, u64 value) {
switch (width) {
case 1:
memory.Write8(addr, static_cast<u8>(value));
@ -53,7 +53,7 @@ void MemoryWriteWidth(Memory::Memory& memory, u32 width, VAddr addr, u64 value)
} // Anonymous namespace
Freezer::Freezer(Core::Timing::CoreTiming& core_timing_, Memory::Memory& memory_)
Freezer::Freezer(Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_)
: core_timing{core_timing_}, memory{memory_} {
event = Core::Timing::CreateEvent(
"MemoryFreezer::FrameCallback",

View file

@ -16,7 +16,7 @@ class CoreTiming;
struct EventType;
} // namespace Core::Timing
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -38,7 +38,7 @@ public:
u64 value;
};
explicit Freezer(Core::Timing::CoreTiming& core_timing_, Memory::Memory& memory_);
explicit Freezer(Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_);
~Freezer();
// Enables or disables the entire memory freezer.
@ -82,7 +82,7 @@ private:
std::shared_ptr<Core::Timing::EventType> event;
Core::Timing::CoreTiming& core_timing;
Memory::Memory& memory;
Core::Memory::Memory& memory;
};
} // namespace Tools

View file

@ -6,6 +6,7 @@
#include "common/page_table.h"
#include "core/core.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/memory.h"
#include "tests/core/arm/arm_test_common.h"
@ -18,12 +19,7 @@ TestEnvironment::TestEnvironment(bool mutable_memory_)
auto& system = Core::System::GetInstance();
auto process = Kernel::Process::Create(system, "", Kernel::Process::ProcessType::Userland);
page_table = &process->VMManager().page_table;
std::fill(page_table->pointers.begin(), page_table->pointers.end(), nullptr);
page_table->special_regions.clear();
std::fill(page_table->attributes.begin(), page_table->attributes.end(),
Common::PageType::Unmapped);
page_table = &process->PageTable().PageTableImpl();
system.Memory().MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
system.Memory().MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);

View file

@ -6,8 +6,8 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
@ -17,10 +17,7 @@ namespace Tegra {
MemoryManager::MemoryManager(Core::System& system, VideoCore::RasterizerInterface& rasterizer)
: rasterizer{rasterizer}, system{system} {
std::fill(page_table.pointers.begin(), page_table.pointers.end(), nullptr);
std::fill(page_table.attributes.begin(), page_table.attributes.end(),
Common::PageType::Unmapped);
page_table.Resize(address_space_width);
page_table.Resize(address_space_width, page_bits, false);
// Initialize the map with a single free region covering the entire managed space.
VirtualMemoryArea initial_vma;
@ -55,9 +52,9 @@ GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, u64 size) {
MapBackingMemory(gpu_addr, system.Memory().GetPointer(cpu_addr), aligned_size, cpu_addr);
ASSERT(system.CurrentProcess()
->VMManager()
.SetMemoryAttribute(cpu_addr, size, Kernel::MemoryAttribute::DeviceMapped,
Kernel::MemoryAttribute::DeviceMapped)
->PageTable()
.SetMemoryAttribute(cpu_addr, size, Kernel::Memory::MemoryAttribute::DeviceShared,
Kernel::Memory::MemoryAttribute::DeviceShared)
.IsSuccess());
return gpu_addr;
@ -70,9 +67,9 @@ GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, GPUVAddr gpu_addr, u64 size)
MapBackingMemory(gpu_addr, system.Memory().GetPointer(cpu_addr), aligned_size, cpu_addr);
ASSERT(system.CurrentProcess()
->VMManager()
.SetMemoryAttribute(cpu_addr, size, Kernel::MemoryAttribute::DeviceMapped,
Kernel::MemoryAttribute::DeviceMapped)
->PageTable()
.SetMemoryAttribute(cpu_addr, size, Kernel::Memory::MemoryAttribute::DeviceShared,
Kernel::Memory::MemoryAttribute::DeviceShared)
.IsSuccess());
return gpu_addr;
}
@ -89,9 +86,10 @@ GPUVAddr MemoryManager::UnmapBuffer(GPUVAddr gpu_addr, u64 size) {
UnmapRange(gpu_addr, aligned_size);
ASSERT(system.CurrentProcess()
->VMManager()
.SetMemoryAttribute(cpu_addr.value(), size, Kernel::MemoryAttribute::DeviceMapped,
Kernel::MemoryAttribute::None)
->PageTable()
.SetMemoryAttribute(cpu_addr.value(), size,
Kernel::Memory::MemoryAttribute::DeviceShared,
Kernel::Memory::MemoryAttribute::None)
.IsSuccess());
return gpu_addr;
@ -147,16 +145,8 @@ T MemoryManager::Read(GPUVAddr addr) const {
return value;
}
switch (page_table.attributes[addr >> page_bits]) {
case Common::PageType::Unmapped:
LOG_ERROR(HW_GPU, "Unmapped Read{} @ 0x{:08X}", sizeof(T) * 8, addr);
return 0;
case Common::PageType::Memory:
ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", addr);
break;
default:
UNREACHABLE();
}
return {};
}
@ -173,17 +163,7 @@ void MemoryManager::Write(GPUVAddr addr, T data) {
return;
}
switch (page_table.attributes[addr >> page_bits]) {
case Common::PageType::Unmapped:
LOG_ERROR(HW_GPU, "Unmapped Write{} 0x{:08X} @ 0x{:016X}", sizeof(data) * 8,
static_cast<u32>(data), addr);
return;
case Common::PageType::Memory:
ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", addr);
break;
default:
UNREACHABLE();
}
}
template u8 MemoryManager::Read<u8>(GPUVAddr addr) const;
@ -249,18 +229,11 @@ void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, const std::s
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
switch (page_table.attributes[page_index]) {
case Common::PageType::Memory: {
const VAddr src_addr{page_table.backing_addr[page_index] + page_offset};
// Flush must happen on the rasterizer interface, such that memory is always synchronous
// when it is read (even when in asynchronous GPU mode). Fixes Dead Cells title menu.
rasterizer.FlushRegion(src_addr, copy_amount);
memory.ReadBlockUnsafe(src_addr, dest_buffer, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
@ -305,18 +278,11 @@ void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, const
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
switch (page_table.attributes[page_index]) {
case Common::PageType::Memory: {
const VAddr dest_addr{page_table.backing_addr[page_index] + page_offset};
// Invalidate must happen on the rasterizer interface, such that memory is always
// synchronous when it is written (even when in asynchronous GPU mode).
rasterizer.InvalidateRegion(dest_addr, copy_amount);
memory.WriteBlockUnsafe(dest_addr, src_buffer, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
@ -362,8 +328,8 @@ void MemoryManager::CopyBlockUnsafe(GPUVAddr dest_addr, GPUVAddr src_addr, const
bool MemoryManager::IsGranularRange(GPUVAddr gpu_addr, std::size_t size) {
const VAddr addr = page_table.backing_addr[gpu_addr >> page_bits];
const std::size_t page = (addr & Memory::PAGE_MASK) + size;
return page <= Memory::PAGE_SIZE;
const std::size_t page = (addr & Core::Memory::PAGE_MASK) + size;
return page <= Core::Memory::PAGE_SIZE;
}
void MemoryManager::MapPages(GPUVAddr base, u64 size, u8* memory, Common::PageType type,
@ -375,12 +341,13 @@ void MemoryManager::MapPages(GPUVAddr base, u64 size, u8* memory, Common::PageTy
ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
base + page_table.pointers.size());
std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type);
if (memory == nullptr) {
std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end, memory);
std::fill(page_table.backing_addr.begin() + base, page_table.backing_addr.begin() + end,
backing_addr);
while (base != end) {
page_table.pointers[base] = nullptr;
page_table.backing_addr[base] = 0;
base += 1;
}
} else {
while (base != end) {
page_table.pointers[base] = memory;

View file

@ -179,7 +179,7 @@ private:
/// End of address space, based on address space in bits.
static constexpr GPUVAddr address_space_end{1ULL << address_space_width};
Common::BackingPageTable page_table{page_bits};
Common::PageTable page_table;
VMAMap vma_map;
VideoCore::RasterizerInterface& rasterizer;

View file

@ -23,15 +23,15 @@ constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
} // Anonymous namespace
RasterizerAccelerated::RasterizerAccelerated(Memory::Memory& cpu_memory_)
RasterizerAccelerated::RasterizerAccelerated(Core::Memory::Memory& cpu_memory_)
: cpu_memory{cpu_memory_} {}
RasterizerAccelerated::~RasterizerAccelerated() = default;
void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
std::lock_guard lock{pages_mutex};
const u64 page_start{addr >> Memory::PAGE_BITS};
const u64 page_end{(addr + size + Memory::PAGE_SIZE - 1) >> Memory::PAGE_BITS};
const u64 page_start{addr >> Core::Memory::PAGE_BITS};
const u64 page_end{(addr + size + Core::Memory::PAGE_SIZE - 1) >> Core::Memory::PAGE_BITS};
// Interval maps will erase segments if count reaches 0, so if delta is negative we have to
// subtract after iterating
@ -44,8 +44,8 @@ void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int del
const auto interval = pair.first & pages_interval;
const int count = pair.second;
const VAddr interval_start_addr = boost::icl::first(interval) << Memory::PAGE_BITS;
const VAddr interval_end_addr = boost::icl::last_next(interval) << Memory::PAGE_BITS;
const VAddr interval_start_addr = boost::icl::first(interval) << Core::Memory::PAGE_BITS;
const VAddr interval_end_addr = boost::icl::last_next(interval) << Core::Memory::PAGE_BITS;
const u64 interval_size = interval_end_addr - interval_start_addr;
if (delta > 0 && count == delta) {

View file

@ -11,7 +11,7 @@
#include "common/common_types.h"
#include "video_core/rasterizer_interface.h"
namespace Memory {
namespace Core::Memory {
class Memory;
}
@ -20,7 +20,7 @@ namespace VideoCore {
/// Implements the shared part in GPU accelerated rasterizers in RasterizerInterface.
class RasterizerAccelerated : public RasterizerInterface {
public:
explicit RasterizerAccelerated(Memory::Memory& cpu_memory_);
explicit RasterizerAccelerated(Core::Memory::Memory& cpu_memory_);
~RasterizerAccelerated() override;
void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
@ -30,7 +30,7 @@ private:
CachedPageMap cached_pages;
std::mutex pages_mutex;
Memory::Memory& cpu_memory;
Core::Memory::Memory& cpu_memory;
};
} // namespace VideoCore