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early-access version 2520

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pineappleEA 2022-02-28 04:09:43 +01:00
parent 09cf05ab91
commit a1e50a2b0d
5 changed files with 114 additions and 44 deletions
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2
README.md
View file

@ -1,7 +1,7 @@
yuzu emulator early access
=============
This is the source code for early-access 2519.
This is the source code for early-access 2520.
## Legal Notice

2
src/core/hle/kernel/k_memory_manager.cpp
View file

@ -31,7 +31,7 @@ constexpr KMemoryManager::Pool GetPoolFromMemoryRegionType(u32 type) {
} else if ((type | KMemoryRegionType_DramSystemNonSecurePool) == type) {
return KMemoryManager::Pool::SystemNonSecure;
} else {
ASSERT_MSG("InvalidMemoryRegionType for conversion to Pool");
UNREACHABLE_MSG("InvalidMemoryRegionType for conversion to Pool");
return {};
}
}

75
src/core/hle/kernel/k_page_table.cpp
View file

@ -322,7 +322,12 @@ ResultCode KPageTable::MapCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t
return ResultSuccess;
}
ResultCode KPageTable::UnmapCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size) {
ResultCode KPageTable::UnmapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size) {
// Validate the mapping request.
R_UNLESS(this->CanContain(dst_address, size, KMemoryState::AliasCode),
ResultInvalidMemoryRegion);
// Lock the table.
KScopedLightLock lk(general_lock);
if (!size) {
@ -331,26 +336,66 @@ ResultCode KPageTable::UnmapCodeMemory(VAddr dst_addr, VAddr src_addr, std::size
const std::size_t num_pages{size / PageSize};
CASCADE_CODE(CheckMemoryState(nullptr, nullptr, nullptr, nullptr, src_addr, size,
// Verify that the source memory is locked normal heap.
std::size_t num_src_allocator_blocks{};
R_TRY(this->CheckMemoryState(std::addressof(num_src_allocator_blocks), src_address, size,
KMemoryState::All, KMemoryState::Normal, KMemoryPermission::None,
KMemoryPermission::None, KMemoryAttribute::Mask,
KMemoryAttribute::Locked, KMemoryAttribute::IpcAndDeviceMapped));
KMemoryPermission::None, KMemoryAttribute::All,
KMemoryAttribute::Locked));
KMemoryState state{};
CASCADE_CODE(CheckMemoryState(
&state, nullptr, nullptr, nullptr, dst_addr, PageSize, KMemoryState::FlagCanCodeAlias,
// Verify that the destination memory is aliasable code.
std::size_t num_dst_allocator_blocks{};
R_TRY(this->CheckMemoryStateContiguous(
std::addressof(num_dst_allocator_blocks), dst_address, size, KMemoryState::FlagCanCodeAlias,
KMemoryState::FlagCanCodeAlias, KMemoryPermission::None, KMemoryPermission::None,
KMemoryAttribute::Mask, KMemoryAttribute::None, KMemoryAttribute::IpcAndDeviceMapped));
CASCADE_CODE(CheckMemoryState(dst_addr, size, KMemoryState::All, state, KMemoryPermission::None,
KMemoryPermission::None, KMemoryAttribute::Mask,
KMemoryAttribute::None));
CASCADE_CODE(Operate(dst_addr, num_pages, KMemoryPermission::None, OperationType::Unmap));
KMemoryAttribute::All, KMemoryAttribute::None));
block_manager->Update(dst_addr, num_pages, KMemoryState::Free);
block_manager->Update(src_addr, num_pages, KMemoryState::Normal,
// Determine whether any pages being unmapped are code.
bool any_code_pages = false;
{
KMemoryBlockManager::const_iterator it = block_manager->FindIterator(dst_address);
while (true) {
// Get the memory info.
const KMemoryInfo info = it->GetMemoryInfo();
// Check if the memory has code flag.
if ((info.GetState() & KMemoryState::FlagCode) != KMemoryState::None) {
any_code_pages = true;
break;
}
// Check if we're done.
if (dst_address + size - 1 <= info.GetLastAddress()) {
break;
}
// Advance.
++it;
}
}
// Ensure that we maintain the instruction cache.
bool reprotected_pages = false;
SCOPE_EXIT({
if (reprotected_pages && any_code_pages) {
system.InvalidateCpuInstructionCacheRange(dst_address, size);
}
});
// Unmap.
{
// TODO(bunnei): We free the virtual address space, but do not nullptr the pointers in the
// backing page table. This is a workaround because of an issue where CPU emulation may have
// not quite finished running code when NROs are unloaded.
// Apply the memory block updates.
block_manager->Update(dst_address, num_pages, KMemoryState::None);
block_manager->Update(src_address, num_pages, KMemoryState::Normal,
KMemoryPermission::UserReadWrite);
system.InvalidateCpuInstructionCacheRange(dst_addr, size);
// Note that we reprotected pages.
reprotected_pages = true;
}
return ResultSuccess;
}

8
src/core/hle/kernel/k_page_table.h
View file

@ -253,7 +253,9 @@ public:
constexpr bool IsInsideASLRRegion(VAddr address, std::size_t size) const {
return !IsOutsideASLRRegion(address, size);
}
constexpr std::size_t GetNumGuardPages() const {
return IsKernel() ? 1 : 4;
}
PAddr GetPhysicalAddr(VAddr addr) const {
const auto backing_addr = page_table_impl.backing_addr[addr >> PageBits];
ASSERT(backing_addr);
@ -275,10 +277,6 @@ private:
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) &&

67
src/core/hle/service/ldr/ldr.cpp
View file

@ -288,7 +288,7 @@ public:
}
bool ValidateRegionForMap(Kernel::KPageTable& page_table, VAddr start, std::size_t size) const {
constexpr std::size_t padding_size{4 * Kernel::PageSize};
const std::size_t padding_size{page_table.GetNumGuardPages() * Kernel::PageSize};
const auto start_info{page_table.QueryInfo(start - 1)};
if (start_info.state != Kernel::KMemoryState::Free) {
@ -308,31 +308,56 @@ public:
return (start + size + padding_size) <= (end_info.GetAddress() + end_info.GetSize());
}
VAddr GetRandomMapRegion(const Kernel::KPageTable& page_table, std::size_t size) const {
VAddr addr{};
const std::size_t end_pages{(page_table.GetAliasCodeRegionSize() - size) >>
Kernel::PageBits};
do {
addr = page_table.GetAliasCodeRegionStart() +
(Kernel::KSystemControl::GenerateRandomRange(0, end_pages) << Kernel::PageBits);
} while (!page_table.IsInsideAddressSpace(addr, size) ||
page_table.IsInsideHeapRegion(addr, size) ||
page_table.IsInsideAliasRegion(addr, size));
return addr;
ResultCode GetAvailableMapRegion(Kernel::KPageTable& page_table, u64 size, VAddr& out_addr) {
size = Common::AlignUp(size, Kernel::PageSize);
size += page_table.GetNumGuardPages() * Kernel::PageSize * 2;
auto is_region_available = [&](VAddr addr) {
const auto end_addr = addr + size;
while (addr < end_addr) {
if (system.Memory().IsValidVirtualAddress(addr)) {
return false;
}
addr += Kernel::PageSize;
}
return true;
};
bool succeeded = false;
const auto map_region_end =
page_table.GetAliasCodeRegionStart() + page_table.GetAliasCodeRegionSize();
while (current_map_addr < map_region_end) {
if (is_region_available(current_map_addr)) {
succeeded = true;
break;
}
current_map_addr += 0x100000;
}
ResultVal<VAddr> MapProcessCodeMemory(Kernel::KProcess* process, VAddr baseAddress,
u64 size) const {
for (std::size_t retry = 0; retry < MAXIMUM_MAP_RETRIES; retry++) {
auto& page_table{process->PageTable()};
const VAddr addr{GetRandomMapRegion(page_table, size)};
const ResultCode result{page_table.MapCodeMemory(addr, baseAddress, size)};
if (!succeeded) {
UNREACHABLE_MSG("Out of address space!");
return Kernel::ResultOutOfMemory;
}
out_addr = current_map_addr;
current_map_addr += size;
return ResultSuccess;
}
ResultVal<VAddr> MapProcessCodeMemory(Kernel::KProcess* process, VAddr base_addr, u64 size) {
auto& page_table{process->PageTable()};
VAddr addr{};
for (std::size_t retry = 0; retry < MAXIMUM_MAP_RETRIES; retry++) {
R_TRY(GetAvailableMapRegion(page_table, size, addr));
const ResultCode result{page_table.MapCodeMemory(addr, base_addr, size)};
if (result == Kernel::ResultInvalidCurrentMemory) {
continue;
}
CASCADE_CODE(result);
R_TRY(result);
if (ValidateRegionForMap(page_table, addr, size)) {
return addr;
@ -343,7 +368,7 @@ public:
}
ResultVal<VAddr> MapNro(Kernel::KProcess* process, VAddr nro_addr, std::size_t nro_size,
VAddr bss_addr, std::size_t bss_size, std::size_t size) const {
VAddr bss_addr, std::size_t bss_size, std::size_t size) {
for (std::size_t retry = 0; retry < MAXIMUM_MAP_RETRIES; retry++) {
auto& page_table{process->PageTable()};
VAddr addr{};
@ -597,6 +622,7 @@ public:
LOG_WARNING(Service_LDR, "(STUBBED) called");
initialized = true;
current_map_addr = system.CurrentProcess()->PageTable().GetAliasCodeRegionStart();
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
@ -607,6 +633,7 @@ private:
std::map<VAddr, NROInfo> nro;
std::map<VAddr, std::vector<SHA256Hash>> nrr;
VAddr current_map_addr{};
bool IsValidNROHash(const SHA256Hash& hash) const {
return std::any_of(nrr.begin(), nrr.end(), [&hash](const auto& p) {