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

hle: kernel: Invalidate entire icache in UnmapProcessMemory and UnmapCodeMemory (fixes #8174)
master
bunnei 2022-04-12 11:23:20 +07:00 committed by GitHub
parent fd5e1e80da 3b91d213b1
commit dc2dd5d5a6
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 34 additions and 15 deletions
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11
src/core/hle/kernel/k_page_table.cpp
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@ -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
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@ -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
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@ -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

30
src/core/hle/service/ldr/ldr.cpp
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@ -389,8 +389,12 @@ public:
if (bss_size) {
auto block_guard = detail::ScopeExit([&] {
page_table.UnmapCodeMemory(addr + nro_size, bss_addr, bss_size);
page_table.UnmapCodeMemory(addr, nro_addr, nro_size);
page_table.UnmapCodeMemory(
addr + nro_size, bss_addr, bss_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange);
page_table.UnmapCodeMemory(
addr, nro_addr, nro_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange);
});
const ResultCode result{
@ -570,17 +574,21 @@ public:
auto& page_table{system.CurrentProcess()->PageTable()};
if (info.bss_size != 0) {
CASCADE_CODE(page_table.UnmapCodeMemory(info.nro_address + info.text_size +
info.ro_size + info.data_size,
info.bss_address, info.bss_size));
CASCADE_CODE(page_table.UnmapCodeMemory(
info.nro_address + info.text_size + info.ro_size + info.data_size, info.bss_address,
info.bss_size, Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
}
CASCADE_CODE(page_table.UnmapCodeMemory(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.UnmapCodeMemory(info.nro_address + info.text_size,
info.src_addr + info.text_size, info.ro_size));
CASCADE_CODE(page_table.UnmapCodeMemory(info.nro_address, info.src_addr, info.text_size));
CASCADE_CODE(page_table.UnmapCodeMemory(
info.nro_address + info.text_size + info.ro_size,
info.src_addr + info.text_size + info.ro_size, info.data_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
CASCADE_CODE(page_table.UnmapCodeMemory(
info.nro_address + info.text_size, info.src_addr + info.text_size, info.ro_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
CASCADE_CODE(page_table.UnmapCodeMemory(
info.nro_address, info.src_addr, info.text_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
return ResultSuccess;
}