diff options
Diffstat (limited to 'src/core/hle/kernel/k_page_table.cpp')
| -rw-r--r-- | src/core/hle/kernel/k_page_table.cpp | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/src/core/hle/kernel/k_page_table.cpp b/src/core/hle/kernel/k_page_table.cpp index ebc540316..387f2c962 100644 --- a/src/core/hle/kernel/k_page_table.cpp +++ b/src/core/hle/kernel/k_page_table.cpp @@ -505,7 +505,7 @@ Result KPageTable::UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress R_TRY(this->CheckMemoryStateContiguous( std::addressof(num_dst_allocator_blocks), dst_address, size, KMemoryState::FlagCanCodeAlias, KMemoryState::FlagCanCodeAlias, KMemoryPermission::None, KMemoryPermission::None, - KMemoryAttribute::All, KMemoryAttribute::None)); + KMemoryAttribute::All & ~KMemoryAttribute::PermissionLocked, KMemoryAttribute::None)); // Determine whether any pages being unmapped are code. bool any_code_pages = false; @@ -1770,7 +1770,11 @@ Result KPageTable::MapPhysicalMemory(KProcessAddress address, size_t size) { m_memory_block_manager.UpdateIfMatch( std::addressof(allocator), address, size / PageSize, KMemoryState::Free, KMemoryPermission::None, KMemoryAttribute::None, KMemoryState::Normal, - KMemoryPermission::UserReadWrite, KMemoryAttribute::None); + KMemoryPermission::UserReadWrite, KMemoryAttribute::None, + address == this->GetAliasRegionStart() + ? KMemoryBlockDisableMergeAttribute::Normal + : KMemoryBlockDisableMergeAttribute::None, + KMemoryBlockDisableMergeAttribute::None); R_SUCCEED(); } @@ -1868,6 +1872,13 @@ Result KPageTable::UnmapPhysicalMemory(KProcessAddress address, size_t size) { // Iterate over the memory, unmapping as we go. auto it = m_memory_block_manager.FindIterator(cur_address); + + const auto clear_merge_attr = + (it->GetState() == KMemoryState::Normal && + it->GetAddress() == this->GetAliasRegionStart() && it->GetAddress() == address) + ? KMemoryBlockDisableMergeAttribute::Normal + : KMemoryBlockDisableMergeAttribute::None; + while (true) { // Check that the iterator is valid. ASSERT(it != m_memory_block_manager.end()); @@ -1905,7 +1916,7 @@ Result KPageTable::UnmapPhysicalMemory(KProcessAddress address, size_t size) { m_memory_block_manager.Update(std::addressof(allocator), address, size / PageSize, KMemoryState::Free, KMemoryPermission::None, KMemoryAttribute::None, KMemoryBlockDisableMergeAttribute::None, - KMemoryBlockDisableMergeAttribute::None); + clear_merge_attr); // We succeeded. R_SUCCEED(); @@ -2650,11 +2661,18 @@ Result KPageTable::SetMemoryAttribute(KProcessAddress addr, size_t size, u32 mas size_t num_allocator_blocks; constexpr auto AttributeTestMask = ~(KMemoryAttribute::SetMask | KMemoryAttribute::DeviceShared); - R_TRY(this->CheckMemoryState( - std::addressof(old_state), std::addressof(old_perm), std::addressof(old_attr), - std::addressof(num_allocator_blocks), addr, size, KMemoryState::FlagCanChangeAttribute, - KMemoryState::FlagCanChangeAttribute, KMemoryPermission::None, KMemoryPermission::None, - AttributeTestMask, KMemoryAttribute::None, ~AttributeTestMask)); + const KMemoryState state_test_mask = + static_cast<KMemoryState>(((mask & static_cast<u32>(KMemoryAttribute::Uncached)) + ? static_cast<u32>(KMemoryState::FlagCanChangeAttribute) + : 0) | + ((mask & static_cast<u32>(KMemoryAttribute::PermissionLocked)) + ? static_cast<u32>(KMemoryState::FlagCanPermissionLock) + : 0)); + R_TRY(this->CheckMemoryState(std::addressof(old_state), std::addressof(old_perm), + std::addressof(old_attr), std::addressof(num_allocator_blocks), + addr, size, state_test_mask, state_test_mask, + KMemoryPermission::None, KMemoryPermission::None, + AttributeTestMask, KMemoryAttribute::None, ~AttributeTestMask)); // Create an update allocator. Result allocator_result{ResultSuccess}; @@ -2662,18 +2680,17 @@ Result KPageTable::SetMemoryAttribute(KProcessAddress addr, size_t size, u32 mas m_memory_block_slab_manager, num_allocator_blocks); R_TRY(allocator_result); - // Determine the new attribute. - const KMemoryAttribute new_attr = - static_cast<KMemoryAttribute>(((old_attr & static_cast<KMemoryAttribute>(~mask)) | - static_cast<KMemoryAttribute>(attr & mask))); - - // Perform operation. - this->Operate(addr, num_pages, old_perm, OperationType::ChangePermissionsAndRefresh); + // If we need to, perform a change attribute operation. + if (True(KMemoryAttribute::Uncached & static_cast<KMemoryAttribute>(mask))) { + // Perform operation. + R_TRY(this->Operate(addr, num_pages, old_perm, + OperationType::ChangePermissionsAndRefreshAndFlush, 0)); + } // Update the blocks. - m_memory_block_manager.Update(std::addressof(allocator), addr, num_pages, old_state, old_perm, - new_attr, KMemoryBlockDisableMergeAttribute::None, - KMemoryBlockDisableMergeAttribute::None); + m_memory_block_manager.UpdateAttribute(std::addressof(allocator), addr, num_pages, + static_cast<KMemoryAttribute>(mask), + static_cast<KMemoryAttribute>(attr)); R_SUCCEED(); } @@ -3086,6 +3103,7 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis } case OperationType::ChangePermissions: case OperationType::ChangePermissionsAndRefresh: + case OperationType::ChangePermissionsAndRefreshAndFlush: break; default: ASSERT(false); |