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Code Issues Releases Activity

k_page_table: use more precise icache invalidates

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This commit is contained in:
Liam 2023-11-07 20:42:22 -05:00
parent 2a255b2d61
commit b16fefa106
1 changed files with 9 additions and 4 deletions
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13
src/core/hle/kernel/k_page_table_base.cpp
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@ -72,6 +72,11 @@ void InvalidateEntireInstructionCache(Core::System& system) {
system.InvalidateCpuInstructionCaches();
}
template <typename AddressType>
void InvalidateInstructionCache(Core::System& system, AddressType addr, u64 size) {
system.InvalidateCpuInstructionCacheRange(GetInteger(addr), size);
}
template <typename AddressType>
Result InvalidateDataCache(AddressType addr, u64 size) {
R_SUCCEED();
@ -1245,7 +1250,7 @@ Result KPageTableBase::UnmapCodeMemory(KProcessAddress dst_address, KProcessAddr
bool reprotected_pages = false;
SCOPE_EXIT({
if (reprotected_pages && any_code_pages) {
InvalidateEntireInstructionCache(m_system);
InvalidateInstructionCache(m_system, dst_address, size);
}
});
@ -1981,7 +1986,7 @@ Result KPageTableBase::SetProcessMemoryPermission(KProcessAddress addr, size_t s
for (const auto& block : pg) {
StoreDataCache(GetHeapVirtualPointer(m_kernel, block.GetAddress()), block.GetSize());
}
InvalidateEntireInstructionCache(m_system);
InvalidateInstructionCache(m_system, addr, size);
}
R_SUCCEED();
@ -3222,8 +3227,8 @@ Result KPageTableBase::WriteDebugMemory(KProcessAddress dst_address, KProcessAdd
// Perform copy for the last block.
R_TRY(PerformCopy());
// Invalidate the entire instruction cache, as this svc allows modifying executable pages.
InvalidateEntireInstructionCache(m_system);
// Invalidate the instruction cache, as this svc allows modifying executable pages.
InvalidateInstructionCache(m_system, dst_address, size);
R_SUCCEED();
}