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Merge pull request #4433 from wwylele/vmmanager-simple

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VMManager: remove shared_ptr<vector> backing type
This commit is contained in:
Weiyi Wang 2018-11-19 11:13:22 -05:00 committed by GitHub
commit 2b768da531
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 110 additions and 204 deletions
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144
src/core/hle/kernel/ipc.cpp
View file

@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/alignment.h"
#include "core/hle/ipc.h"
#include "core/hle/kernel/handle_table.h"
@ -14,70 +15,10 @@
namespace Kernel {
void ScanForAndUnmapBuffer(std::array<u32, IPC::COMMAND_BUFFER_LENGTH>& dst_cmd_buf,
const std::size_t dst_command_size, std::size_t& target_index,
SharedPtr<Process> src_process, SharedPtr<Process> dst_process,
const VAddr source_address, const VAddr page_start, const u32 num_pages,
const u32 size, const IPC::MappedBufferPermissions permissions) {
while (target_index < dst_command_size) {
u32 desc = dst_cmd_buf[target_index++];
if (IPC::GetDescriptorType(desc) == IPC::DescriptorType::CopyHandle ||
IPC::GetDescriptorType(desc) == IPC::DescriptorType::MoveHandle) {
u32 num_handles = IPC::HandleNumberFromDesc(desc);
for (u32 j = 0; j < num_handles; ++j) {
target_index += 1;
}
continue;
}
if (IPC::GetDescriptorType(desc) == IPC::DescriptorType::CallingPid ||
IPC::GetDescriptorType(desc) == IPC::DescriptorType::StaticBuffer) {
target_index += 1;
continue;
}
if (IPC::GetDescriptorType(desc) == IPC::DescriptorType::MappedBuffer) {
VAddr dest_address = dst_cmd_buf[target_index];
IPC::MappedBufferDescInfo dest_descInfo{desc};
u32 dest_size = static_cast<u32>(dest_descInfo.size);
IPC::MappedBufferPermissions dest_permissions = dest_descInfo.perms;
if (dest_size == 0) {
target_index += 1;
continue;
}
ASSERT(permissions == dest_permissions && size == dest_size);
// Readonly buffers do not need to be copied over to the target
// process again because they were (presumably) not modified. This
// behavior is consistent with the real kernel.
if (permissions != IPC::MappedBufferPermissions::R) {
// Copy the modified buffer back into the target process
Memory::CopyBlock(*src_process, *dst_process, source_address, dest_address, size);
}
VAddr prev_reserve = page_start - Memory::PAGE_SIZE;
VAddr next_reserve = page_start + num_pages * Memory::PAGE_SIZE;
auto& prev_vma = src_process->vm_manager.FindVMA(prev_reserve)->second;
auto& next_vma = src_process->vm_manager.FindVMA(next_reserve)->second;
ASSERT(prev_vma.meminfo_state == MemoryState::Reserved &&
next_vma.meminfo_state == MemoryState::Reserved);
// Unmap the buffer and guard pages from the source process
ResultCode result = src_process->vm_manager.UnmapRange(
page_start - Memory::PAGE_SIZE, (num_pages + 2) * Memory::PAGE_SIZE);
ASSERT(result == RESULT_SUCCESS);
target_index += 1;
break;
}
}
}
ResultCode TranslateCommandBuffer(SharedPtr<Thread> src_thread, SharedPtr<Thread> dst_thread,
VAddr src_address, VAddr dst_address, bool reply) {
VAddr src_address, VAddr dst_address,
std::vector<MappedBufferContext>& mapped_buffer_context,
bool reply) {
auto& src_process = src_thread->owner_process;
auto& dst_process = dst_thread->owner_process;
@ -95,18 +36,6 @@ ResultCode TranslateCommandBuffer(SharedPtr<Thread> src_thread, SharedPtr<Thread
std::array<u32, IPC::COMMAND_BUFFER_LENGTH> cmd_buf;
Memory::ReadBlock(*src_process, src_address, cmd_buf.data(), command_size * sizeof(u32));
// Create a copy of the target's command buffer
IPC::Header dst_header;
Memory::ReadBlock(*dst_process, dst_address, &dst_header.raw, sizeof(dst_header.raw));
std::size_t dst_untranslated_size = 1u + dst_header.normal_params_size;
std::size_t dst_command_size = dst_untranslated_size + dst_header.translate_params_size;
std::size_t target_index = dst_untranslated_size;
std::array<u32, IPC::COMMAND_BUFFER_LENGTH> dst_cmd_buf;
Memory::ReadBlock(*dst_process, dst_address, dst_cmd_buf.data(),
dst_command_size * sizeof(u32));
std::size_t i = untranslated_size;
while (i < command_size) {
u32 descriptor = cmd_buf[i];
@ -212,9 +141,36 @@ ResultCode TranslateCommandBuffer(SharedPtr<Thread> src_thread, SharedPtr<Thread
if (reply) {
// Scan the target's command buffer for the matching mapped buffer.
// The real kernel panics if you try to reply with an unsolicited MappedBuffer.
ScanForAndUnmapBuffer(dst_cmd_buf, dst_command_size, target_index, src_process,
dst_process, source_address, page_start, num_pages, size,
permissions);
auto found = std::find_if(
mapped_buffer_context.begin(), mapped_buffer_context.end(),
[permissions, size, source_address](const MappedBufferContext& context) {
// Note: reply's source_address is request's target_address
return context.permissions == permissions && context.size == size &&
context.target_address == source_address;
});
ASSERT(found != mapped_buffer_context.end());
if (permissions != IPC::MappedBufferPermissions::R) {
// Copy the modified buffer back into the target process
Memory::CopyBlock(*src_process, *dst_process, found->target_address,
found->source_address, size);
}
VAddr prev_reserve = page_start - Memory::PAGE_SIZE;
VAddr next_reserve = page_start + num_pages * Memory::PAGE_SIZE;
auto& prev_vma = src_process->vm_manager.FindVMA(prev_reserve)->second;
auto& next_vma = src_process->vm_manager.FindVMA(next_reserve)->second;
ASSERT(prev_vma.meminfo_state == MemoryState::Reserved &&
next_vma.meminfo_state == MemoryState::Reserved);
// Unmap the buffer and guard pages from the source process
ResultCode result = src_process->vm_manager.UnmapRange(
page_start - Memory::PAGE_SIZE, (num_pages + 2) * Memory::PAGE_SIZE);
ASSERT(result == RESULT_SUCCESS);
mapped_buffer_context.erase(found);
i += 1;
break;
@ -225,27 +181,33 @@ ResultCode TranslateCommandBuffer(SharedPtr<Thread> src_thread, SharedPtr<Thread
// TODO(Subv): Perform permission checks.
// Reserve a page of memory before the mapped buffer
auto reserve_buffer = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
dst_process->vm_manager.MapMemoryBlockToBase(
Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE, reserve_buffer, 0,
static_cast<u32>(reserve_buffer->size()), Kernel::MemoryState::Reserved);
auto reserve_buffer = std::make_unique<u8[]>(Memory::PAGE_SIZE);
dst_process->vm_manager.MapBackingMemoryToBase(
Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE, reserve_buffer.get(),
Memory::PAGE_SIZE, Kernel::MemoryState::Reserved);
auto buffer = std::make_shared<std::vector<u8>>(num_pages * Memory::PAGE_SIZE);
Memory::ReadBlock(*src_process, source_address, buffer->data() + page_offset, size);
auto buffer = std::make_unique<u8[]>(num_pages * Memory::PAGE_SIZE);
Memory::ReadBlock(*src_process, source_address, buffer.get() + page_offset, size);
// Map the page(s) into the target process' address space.
target_address = dst_process->vm_manager
.MapMemoryBlockToBase(
Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE, buffer, 0,
static_cast<u32>(buffer->size()), Kernel::MemoryState::Shared)
target_address =
dst_process->vm_manager
.MapBackingMemoryToBase(Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE,
buffer.get(), num_pages * Memory::PAGE_SIZE,
Kernel::MemoryState::Shared)
.Unwrap();
cmd_buf[i++] = target_address + page_offset;
// Reserve a page of memory after the mapped buffer
dst_process->vm_manager.MapMemoryBlockToBase(
Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE, reserve_buffer, 0,
static_cast<u32>(reserve_buffer->size()), Kernel::MemoryState::Reserved);
dst_process->vm_manager.MapBackingMemoryToBase(
Memory::IPC_MAPPING_VADDR, Memory::IPC_MAPPING_SIZE, reserve_buffer.get(),
Memory::PAGE_SIZE, Kernel::MemoryState::Reserved);
mapped_buffer_context.push_back({permissions, size, source_address,
target_address + page_offset, std::move(buffer),
std::move(reserve_buffer)});
break;
}
default:

18
src/core/hle/kernel/ipc.h
View file

@ -4,11 +4,27 @@
#pragma once
#include <memory>
#include <vector>
#include "common/common_types.h"
#include "core/hle/ipc.h"
#include "core/hle/kernel/thread.h"
namespace Kernel {
struct MappedBufferContext {
IPC::MappedBufferPermissions permissions;
u32 size;
VAddr source_address;
VAddr target_address;
std::unique_ptr<u8[]> buffer;
std::unique_ptr<u8[]> reserve_buffer;
};
/// Performs IPC command buffer translation from one process to another.
ResultCode TranslateCommandBuffer(SharedPtr<Thread> src_thread, SharedPtr<Thread> dst_thread,
VAddr src_address, VAddr dst_address, bool reply);
VAddr src_address, VAddr dst_address,
std::vector<MappedBufferContext>& mapped_buffer_context,
bool reply);
} // namespace Kernel

4
src/core/hle/kernel/server_session.h
View file

@ -8,6 +8,7 @@
#include <string>
#include "common/assert.h"
#include "common/common_types.h"
#include "core/hle/kernel/ipc.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/wait_object.h"
#include "core/hle/result.h"
@ -83,6 +84,9 @@ public:
/// TODO(Subv): Find a better name for this.
SharedPtr<Thread> currently_handling;
/// A temporary list holding mapped buffer info from IPC request, used for during IPC reply
std::vector<MappedBufferContext> mapped_buffer_context;
private:
explicit ServerSession(KernelSystem& kernel);
~ServerSession() override;

8
src/core/hle/kernel/svc.cpp
View file

@ -600,8 +600,9 @@ static ResultCode ReceiveIPCRequest(SharedPtr<ServerSession> server_session,
VAddr target_address = thread->GetCommandBufferAddress();
VAddr source_address = server_session->currently_handling->GetCommandBufferAddress();
ResultCode translation_result = TranslateCommandBuffer(
server_session->currently_handling, thread, source_address, target_address, false);
ResultCode translation_result =
TranslateCommandBuffer(server_session->currently_handling, thread, source_address,
target_address, server_session->mapped_buffer_context, false);
// If a translation error occurred, immediately resume the client thread.
if (translation_result.IsError()) {
@ -667,7 +668,8 @@ ResultCode SVC::ReplyAndReceive(s32* index, VAddr handles_address, s32 handle_co
VAddr target_address = request_thread->GetCommandBufferAddress();
ResultCode translation_result =
TranslateCommandBuffer(thread, request_thread, source_address, target_address, true);
TranslateCommandBuffer(thread, request_thread, source_address, target_address,
session->mapped_buffer_context, true);
// Note: The real kernel seems to always panic if the Server->Client buffer translation
// fails for whatever reason.

53
src/core/hle/kernel/vm_manager.cpp
View file

@ -28,10 +28,6 @@ bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
type != next.type) {
return false;
}
if (type == VMAType::AllocatedMemoryBlock &&
(backing_block != next.backing_block || offset + size != next.offset)) {
return false;
}
if (type == VMAType::BackingMemory && backing_memory + size != next.backing_memory) {
return false;
}
@ -71,31 +67,8 @@ VMManager::VMAHandle VMManager::FindVMA(VAddr target) const {
}
}
ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target,
std::shared_ptr<std::vector<u8>> block,
std::size_t offset, u32 size,
MemoryState state) {
ASSERT(block != nullptr);
ASSERT(offset + size <= block->size());
// This is the appropriately sized VMA that will turn into our allocation.
CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size));
VirtualMemoryArea& final_vma = vma_handle->second;
ASSERT(final_vma.size == size);
final_vma.type = VMAType::AllocatedMemoryBlock;
final_vma.permissions = VMAPermission::ReadWrite;
final_vma.meminfo_state = state;
final_vma.backing_block = block;
final_vma.offset = offset;
UpdatePageTableForVMA(final_vma);
return MakeResult<VMAHandle>(MergeAdjacent(vma_handle));
}
ResultVal<VAddr> VMManager::MapMemoryBlockToBase(VAddr base, u32 region_size,
std::shared_ptr<std::vector<u8>> block,
std::size_t offset, u32 size, MemoryState state) {
ResultVal<VAddr> VMManager::MapBackingMemoryToBase(VAddr base, u32 region_size, u8* memory,
u32 size, MemoryState state) {
// Find the first Free VMA.
VMAHandle vma_handle = std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) {
@ -115,7 +88,7 @@ ResultVal<VAddr> VMManager::MapMemoryBlockToBase(VAddr base, u32 region_size,
ErrorSummary::OutOfResource, ErrorLevel::Permanent);
}
auto result = MapMemoryBlock(target, block, offset, size, state);
auto result = MapBackingMemory(target, memory, size, state);
if (result.Failed())
return result.Code();
@ -198,8 +171,6 @@ VMManager::VMAIter VMManager::Unmap(VMAIter vma_handle) {
vma.permissions = VMAPermission::None;
vma.meminfo_state = MemoryState::Free;
vma.backing_block = nullptr;
vma.offset = 0;
vma.backing_memory = nullptr;
vma.paddr = 0;
@ -247,17 +218,6 @@ ResultCode VMManager::ReprotectRange(VAddr target, u32 size, VMAPermission new_p
return RESULT_SUCCESS;
}
void VMManager::RefreshMemoryBlockMappings(const std::vector<u8>* block) {
// If this ever proves to have a noticeable performance impact, allow users of the function to
// specify a specific range of addresses to limit the scan to.
for (const auto& p : vma_map) {
const VirtualMemoryArea& vma = p.second;
if (block == vma.backing_block.get()) {
UpdatePageTableForVMA(vma);
}
}
}
void VMManager::LogLayout(Log::Level log_level) const {
for (const auto& p : vma_map) {
const VirtualMemoryArea& vma = p.second;
@ -356,9 +316,6 @@ VMManager::VMAIter VMManager::SplitVMA(VMAIter vma_handle, u32 offset_in_vma) {
switch (new_vma.type) {
case VMAType::Free:
break;
case VMAType::AllocatedMemoryBlock:
new_vma.offset += offset_in_vma;
break;
case VMAType::BackingMemory:
new_vma.backing_memory += offset_in_vma;
break;
@ -396,10 +353,6 @@ void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
case VMAType::Free:
Memory::UnmapRegion(page_table, vma.base, vma.size);
break;
case VMAType::AllocatedMemoryBlock:
Memory::MapMemoryRegion(page_table, vma.base, vma.size,
vma.backing_block->data() + vma.offset);
break;
case VMAType::BackingMemory:
Memory::MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory);
break;

35
src/core/hle/kernel/vm_manager.h
View file

@ -18,13 +18,10 @@ 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
@ -72,12 +69,6 @@ struct VirtualMemoryArea {
/// Tag returned by svcQueryMemory. Not otherwise used.
MemoryState meminfo_state = MemoryState::Free;
// Settings for type = AllocatedMemoryBlock
/// Memory block backing this VMA.
std::shared_ptr<std::vector<u8>> 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;
@ -133,32 +124,18 @@ public:
// 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<std::vector<u8>> block,
std::size_t offset, u32 size, MemoryState state);
/**
* Maps part of a ref-counted block of memory at the first free address after the given base.
*
* @param base The base address to start the mapping at.
* @param region_size The max size of the region from where we'll try to find an address.
* @param block The block to be mapped.
* @param offset Offset into `block` to map from.
* @param memory The memory to be mapped.
* @param size Size of the mapping.
* @param state MemoryState tag to attach to the VMA.
* @returns The address at which the memory was mapped.
*/
ResultVal<VAddr> MapMemoryBlockToBase(VAddr base, u32 region_size,
std::shared_ptr<std::vector<u8>> block,
std::size_t offset, u32 size, MemoryState state);
ResultVal<VAddr> MapBackingMemoryToBase(VAddr base, u32 region_size, u8* memory, u32 size,
MemoryState state);
/**
* Maps an unmanaged host memory pointer at a given address.
*
@ -205,12 +182,6 @@ public:
/// Changes the permissions of a range of addresses, splitting VMAs as necessary.
ResultCode ReprotectRange(VAddr target, u32 size, VMAPermission new_perms);
/**
* 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 std::vector<u8>* block);
/// Dumps the address space layout to the log, for debugging
void LogLayout(Log::Level log_level) const;

3
src/core/memory.cpp
View file

@ -92,9 +92,6 @@ static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
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;

23
src/tests/core/hle/kernel/hle_ipc.cpp
View file

@ -139,8 +139,8 @@ TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel
std::fill(buffer->begin(), buffer->end(), 0xAB);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(target_address, buffer, 0, buffer->size(),
MemoryState::Private);
auto result = process->vm_manager.MapBackingMemory(target_address, buffer->data(),
buffer->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
const u32_le input[]{
@ -161,8 +161,8 @@ TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel
std::fill(buffer->begin(), buffer->end(), 0xCD);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(target_address, buffer, 0, buffer->size(),
MemoryState::Private);
auto result = process->vm_manager.MapBackingMemory(target_address, buffer->data(),
buffer->size(), MemoryState::Private);
const u32_le input[]{
IPC::MakeHeader(0, 0, 2),
@ -188,12 +188,13 @@ TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel
std::fill(buffer_mapped->begin(), buffer_mapped->end(), 0xDF);
VAddr target_address_static = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(
target_address_static, buffer_static, 0, buffer_static->size(), MemoryState::Private);
auto result =
process->vm_manager.MapBackingMemory(target_address_static, buffer_static->data(),
buffer_static->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
VAddr target_address_mapped = 0x20000000;
result = process->vm_manager.MapMemoryBlock(target_address_mapped, buffer_mapped, 0,
result = process->vm_manager.MapBackingMemory(target_address_mapped, buffer_mapped->data(),
buffer_mapped->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
@ -315,8 +316,8 @@ TEST_CASE("HLERequestContext::WriteToOutgoingCommandBuffer", "[core][kernel]") {
auto output_buffer = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(
target_address, output_buffer, 0, output_buffer->size(), MemoryState::Private);
auto result = process->vm_manager.MapBackingMemory(
target_address, output_buffer->data(), output_buffer->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
input[0] = IPC::MakeHeader(0, 0, 2);
@ -344,8 +345,8 @@ TEST_CASE("HLERequestContext::WriteToOutgoingCommandBuffer", "[core][kernel]") {
auto output_buffer = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(
target_address, output_buffer, 0, output_buffer->size(), MemoryState::Private);
auto result = process->vm_manager.MapBackingMemory(
target_address, output_buffer->data(), output_buffer->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
const u32_le input_cmdbuff[]{

14
src/tests/core/memory/vm_manager.cpp
View file

@ -14,22 +14,22 @@ TEST_CASE("Memory Basics", "[kernel][memory]") {
SECTION("mapping memory") {
// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
auto manager = std::make_unique<Kernel::VMManager>();
auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
auto result = manager->MapBackingMemory(Memory::HEAP_VADDR, block->data(), block->size(),
Kernel::MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
auto vma = manager->FindVMA(Memory::HEAP_VADDR);
CHECK(vma != manager->vma_map.end());
CHECK(vma->second.size == block->size());
CHECK(vma->second.type == Kernel::VMAType::AllocatedMemoryBlock);
CHECK(vma->second.backing_block == block);
CHECK(vma->second.type == Kernel::VMAType::BackingMemory);
CHECK(vma->second.backing_memory == block->data());
CHECK(vma->second.meminfo_state == Kernel::MemoryState::Private);
}
SECTION("unmapping memory") {
// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
auto manager = std::make_unique<Kernel::VMManager>();
auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
auto result = manager->MapBackingMemory(Memory::HEAP_VADDR, block->data(), block->size(),
Kernel::MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
@ -39,13 +39,13 @@ TEST_CASE("Memory Basics", "[kernel][memory]") {
auto vma = manager->FindVMA(Memory::HEAP_VADDR);
CHECK(vma != manager->vma_map.end());
CHECK(vma->second.type == Kernel::VMAType::Free);
CHECK(vma->second.backing_block == nullptr);
CHECK(vma->second.backing_memory == nullptr);
}
SECTION("changing memory permissions") {
// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
auto manager = std::make_unique<Kernel::VMManager>();
auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
auto result = manager->MapBackingMemory(Memory::HEAP_VADDR, block->data(), block->size(),
Kernel::MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
@ -64,7 +64,7 @@ TEST_CASE("Memory Basics", "[kernel][memory]") {
SECTION("changing memory state") {
// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
auto manager = std::make_unique<Kernel::VMManager>();
auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
auto result = manager->MapBackingMemory(Memory::HEAP_VADDR, block->data(), block->size(),
Kernel::MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);