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Merge pull request #8178 from tech-ticks/skyline-icache-fix

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hle: kernel: Invalidate entire icache in UnmapProcessMemory and UnmapCodeMemory (fixes #8174)
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bunnei 2022-04-12 11:23:20 -07:00 • committed by GitHub
commit dc2dd5d5a6
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4 changed files with 34 additions and 15 deletions
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11
src/core/hle/kernel/k_page_table.cpp
View file

@ -346,7 +346,8 @@ ResultCode KPageTable::MapCodeMemory(VAddr dst_address, VAddr src_address, std::
return ResultSuccess;
}
ResultCode KPageTable::UnmapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size) {
ResultCode KPageTable::UnmapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size,
ICacheInvalidationStrategy icache_invalidation_strategy) {
// Validate the mapping request.
R_UNLESS(this->CanContain(dst_address, size, KMemoryState::AliasCode),
ResultInvalidMemoryRegion);
@ -396,7 +397,11 @@ ResultCode KPageTable::UnmapCodeMemory(VAddr dst_address, VAddr src_address, std
bool reprotected_pages = false;
SCOPE_EXIT({
if (reprotected_pages && any_code_pages) {
system.InvalidateCpuInstructionCacheRange(dst_address, size);
if (icache_invalidation_strategy == ICacheInvalidationStrategy::InvalidateRange) {
system.InvalidateCpuInstructionCacheRange(dst_address, size);
} else {
system.InvalidateCpuInstructionCaches();
}
}
});
@ -563,6 +568,8 @@ ResultCode KPageTable::UnmapProcessMemory(VAddr dst_addr, std::size_t size,
block_manager->Update(dst_addr, num_pages, KMemoryState::Free, KMemoryPermission::None,
KMemoryAttribute::None);
system.InvalidateCpuInstructionCaches();
return ResultSuccess;
}

5
src/core/hle/kernel/k_page_table.h
View file

@ -26,6 +26,8 @@ class KMemoryBlockManager;
class KPageTable final {
public:
enum class ICacheInvalidationStrategy : u32 { InvalidateRange, InvalidateAll };
YUZU_NON_COPYABLE(KPageTable);
YUZU_NON_MOVEABLE(KPageTable);
@ -38,7 +40,8 @@ public:
ResultCode MapProcessCode(VAddr addr, std::size_t pages_count, KMemoryState state,
KMemoryPermission perm);
ResultCode MapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size);
ResultCode UnmapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size);
ResultCode UnmapCodeMemory(VAddr dst_address, VAddr src_address, std::size_t size,
ICacheInvalidationStrategy icache_invalidation_strategy);
ResultCode UnmapProcessMemory(VAddr dst_addr, std::size_t size, KPageTable& src_page_table,
VAddr src_addr);
ResultCode MapPhysicalMemory(VAddr addr, std::size_t size);

3
src/core/hle/kernel/svc.cpp
View file

@ -1713,7 +1713,8 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
return ResultInvalidMemoryRegion;
}
return page_table.UnmapCodeMemory(dst_address, src_address, size);
return page_table.UnmapCodeMemory(dst_address, src_address, size,
KPageTable::ICacheInvalidationStrategy::InvalidateAll);
}
/// Exits the current process