diff options
Diffstat (limited to 'src/core/hle/kernel/k_page_table.cpp')
| -rw-r--r-- | src/core/hle/kernel/k_page_table.cpp | 314 |
1 files changed, 181 insertions, 133 deletions
diff --git a/src/core/hle/kernel/k_page_table.cpp b/src/core/hle/kernel/k_page_table.cpp index 0b0cef984..217ccbae3 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; @@ -1724,29 +1724,43 @@ Result KPageTable::MapPhysicalMemory(KProcessAddress address, size_t size) { PageSize; // While we have pages to map, map them. - while (map_pages > 0) { - // Check if we're at the end of the physical block. - if (pg_pages == 0) { - // Ensure there are more pages to map. - ASSERT(pg_it != pg.end()); - - // Advance our physical block. - ++pg_it; - pg_phys_addr = pg_it->GetAddress(); - pg_pages = pg_it->GetNumPages(); + { + // Create a page group for the current mapping range. + KPageGroup cur_pg(m_kernel, m_block_info_manager); + { + ON_RESULT_FAILURE_2 { + cur_pg.OpenFirst(); + cur_pg.Close(); + }; + + size_t remain_pages = map_pages; + while (remain_pages > 0) { + // Check if we're at the end of the physical block. + if (pg_pages == 0) { + // Ensure there are more pages to map. + ASSERT(pg_it != pg.end()); + + // Advance our physical block. + ++pg_it; + pg_phys_addr = pg_it->GetAddress(); + pg_pages = pg_it->GetNumPages(); + } + + // Add whatever we can to the current block. + const size_t cur_pages = std::min(pg_pages, remain_pages); + R_TRY(cur_pg.AddBlock(pg_phys_addr + + ((pg_pages - cur_pages) * PageSize), + cur_pages)); + + // Advance. + remain_pages -= cur_pages; + pg_pages -= cur_pages; + } } - // Map whatever we can. - const size_t cur_pages = std::min(pg_pages, map_pages); - R_TRY(Operate(cur_address, cur_pages, KMemoryPermission::UserReadWrite, - OperationType::MapFirst, pg_phys_addr)); - - // Advance. - cur_address += cur_pages * PageSize; - map_pages -= cur_pages; - - pg_phys_addr += cur_pages * PageSize; - pg_pages -= cur_pages; + // Map the pages. + R_TRY(this->Operate(cur_address, map_pages, cur_pg, + OperationType::MapFirstGroup)); } } @@ -1770,7 +1784,11 @@ 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 +1886,13 @@ 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 +1930,7 @@ 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(); @@ -2379,8 +2404,7 @@ Result KPageTable::MapPageGroup(KProcessAddress* out_addr, const KPageGroup& pg, KScopedPageTableUpdater updater(this); // Perform mapping operation. - const KPageProperties properties = {perm, state == KMemoryState::Io, false, - DisableMergeAttribute::DisableHead}; + const KPageProperties properties = {perm, false, false, DisableMergeAttribute::DisableHead}; R_TRY(this->MapPageGroupImpl(updater.GetPageList(), addr, pg, properties, false)); // Update the blocks. @@ -2422,8 +2446,7 @@ Result KPageTable::MapPageGroup(KProcessAddress addr, const KPageGroup& pg, KMem KScopedPageTableUpdater updater(this); // Perform mapping operation. - const KPageProperties properties = {perm, state == KMemoryState::Io, false, - DisableMergeAttribute::DisableHead}; + const KPageProperties properties = {perm, false, false, DisableMergeAttribute::DisableHead}; R_TRY(this->MapPageGroupImpl(updater.GetPageList(), addr, pg, properties, false)); // Update the blocks. @@ -2652,11 +2675,18 @@ 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}; @@ -2664,18 +2694,17 @@ 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(); } @@ -2863,7 +2892,8 @@ Result KPageTable::LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress &KMemoryBlock::ShareToDevice, KMemoryPermission::None); // Set whether the locked memory was io. - *out_is_io = old_state == KMemoryState::Io; + *out_is_io = + static_cast<Svc::MemoryState>(old_state & KMemoryState::Mask) == Svc::MemoryState::Io; R_SUCCEED(); } @@ -3021,9 +3051,10 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, const KPageGr ASSERT(num_pages == page_group.GetNumPages()); switch (operation) { - case OperationType::MapGroup: { + case OperationType::MapGroup: + case OperationType::MapFirstGroup: { // We want to maintain a new reference to every page in the group. - KScopedPageGroup spg(page_group); + KScopedPageGroup spg(page_group, operation != OperationType::MapFirstGroup); for (const auto& node : page_group) { const size_t size{node.GetNumPages() * PageSize}; @@ -3065,7 +3096,6 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis m_memory->UnmapRegion(*m_page_table_impl, addr, num_pages * PageSize); break; } - case OperationType::MapFirst: case OperationType::Map: { ASSERT(map_addr); ASSERT(Common::IsAligned(GetInteger(map_addr), PageSize)); @@ -3073,11 +3103,7 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis // Open references to pages, if we should. if (IsHeapPhysicalAddress(m_kernel.MemoryLayout(), map_addr)) { - if (operation == OperationType::MapFirst) { - m_kernel.MemoryManager().OpenFirst(map_addr, num_pages); - } else { - m_kernel.MemoryManager().Open(map_addr, num_pages); - } + m_kernel.MemoryManager().Open(map_addr, num_pages); } break; } @@ -3087,6 +3113,7 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis } case OperationType::ChangePermissions: case OperationType::ChangePermissionsAndRefresh: + case OperationType::ChangePermissionsAndRefreshAndFlush: break; default: ASSERT(false); @@ -3106,79 +3133,79 @@ void KPageTable::FinalizeUpdate(PageLinkedList* page_list) { } } -KProcessAddress KPageTable::GetRegionAddress(KMemoryState state) const { +KProcessAddress KPageTable::GetRegionAddress(Svc::MemoryState state) const { switch (state) { - case KMemoryState::Free: - case KMemoryState::Kernel: + case Svc::MemoryState::Free: + case Svc::MemoryState::Kernel: return m_address_space_start; - case KMemoryState::Normal: + case Svc::MemoryState::Normal: return m_heap_region_start; - case KMemoryState::Ipc: - case KMemoryState::NonSecureIpc: - case KMemoryState::NonDeviceIpc: + case Svc::MemoryState::Ipc: + case Svc::MemoryState::NonSecureIpc: + case Svc::MemoryState::NonDeviceIpc: return m_alias_region_start; - case KMemoryState::Stack: + case Svc::MemoryState::Stack: return m_stack_region_start; - case KMemoryState::Static: - case KMemoryState::ThreadLocal: + case Svc::MemoryState::Static: + case Svc::MemoryState::ThreadLocal: return m_kernel_map_region_start; - case KMemoryState::Io: - case KMemoryState::Shared: - case KMemoryState::AliasCode: - case KMemoryState::AliasCodeData: - case KMemoryState::Transfered: - case KMemoryState::SharedTransfered: - case KMemoryState::SharedCode: - case KMemoryState::GeneratedCode: - case KMemoryState::CodeOut: - case KMemoryState::Coverage: - case KMemoryState::Insecure: + case Svc::MemoryState::Io: + case Svc::MemoryState::Shared: + case Svc::MemoryState::AliasCode: + case Svc::MemoryState::AliasCodeData: + case Svc::MemoryState::Transfered: + case Svc::MemoryState::SharedTransfered: + case Svc::MemoryState::SharedCode: + case Svc::MemoryState::GeneratedCode: + case Svc::MemoryState::CodeOut: + case Svc::MemoryState::Coverage: + case Svc::MemoryState::Insecure: return m_alias_code_region_start; - case KMemoryState::Code: - case KMemoryState::CodeData: + case Svc::MemoryState::Code: + case Svc::MemoryState::CodeData: return m_code_region_start; default: UNREACHABLE(); } } -size_t KPageTable::GetRegionSize(KMemoryState state) const { +size_t KPageTable::GetRegionSize(Svc::MemoryState state) const { switch (state) { - case KMemoryState::Free: - case KMemoryState::Kernel: + case Svc::MemoryState::Free: + case Svc::MemoryState::Kernel: return m_address_space_end - m_address_space_start; - case KMemoryState::Normal: + case Svc::MemoryState::Normal: return m_heap_region_end - m_heap_region_start; - case KMemoryState::Ipc: - case KMemoryState::NonSecureIpc: - case KMemoryState::NonDeviceIpc: + case Svc::MemoryState::Ipc: + case Svc::MemoryState::NonSecureIpc: + case Svc::MemoryState::NonDeviceIpc: return m_alias_region_end - m_alias_region_start; - case KMemoryState::Stack: + case Svc::MemoryState::Stack: return m_stack_region_end - m_stack_region_start; - case KMemoryState::Static: - case KMemoryState::ThreadLocal: + case Svc::MemoryState::Static: + case Svc::MemoryState::ThreadLocal: return m_kernel_map_region_end - m_kernel_map_region_start; - case KMemoryState::Io: - case KMemoryState::Shared: - case KMemoryState::AliasCode: - case KMemoryState::AliasCodeData: - case KMemoryState::Transfered: - case KMemoryState::SharedTransfered: - case KMemoryState::SharedCode: - case KMemoryState::GeneratedCode: - case KMemoryState::CodeOut: - case KMemoryState::Coverage: - case KMemoryState::Insecure: + case Svc::MemoryState::Io: + case Svc::MemoryState::Shared: + case Svc::MemoryState::AliasCode: + case Svc::MemoryState::AliasCodeData: + case Svc::MemoryState::Transfered: + case Svc::MemoryState::SharedTransfered: + case Svc::MemoryState::SharedCode: + case Svc::MemoryState::GeneratedCode: + case Svc::MemoryState::CodeOut: + case Svc::MemoryState::Coverage: + case Svc::MemoryState::Insecure: return m_alias_code_region_end - m_alias_code_region_start; - case KMemoryState::Code: - case KMemoryState::CodeData: + case Svc::MemoryState::Code: + case Svc::MemoryState::CodeData: return m_code_region_end - m_code_region_start; default: UNREACHABLE(); } } -bool KPageTable::CanContain(KProcessAddress addr, size_t size, KMemoryState state) const { +bool KPageTable::CanContain(KProcessAddress addr, size_t size, Svc::MemoryState state) const { const KProcessAddress end = addr + size; const KProcessAddress last = end - 1; @@ -3192,32 +3219,32 @@ bool KPageTable::CanContain(KProcessAddress addr, size_t size, KMemoryState stat const bool is_in_alias = !(end <= m_alias_region_start || m_alias_region_end <= addr || m_alias_region_start == m_alias_region_end); switch (state) { - case KMemoryState::Free: - case KMemoryState::Kernel: + case Svc::MemoryState::Free: + case Svc::MemoryState::Kernel: return is_in_region; - case KMemoryState::Io: - case KMemoryState::Static: - case KMemoryState::Code: - case KMemoryState::CodeData: - case KMemoryState::Shared: - case KMemoryState::AliasCode: - case KMemoryState::AliasCodeData: - case KMemoryState::Stack: - case KMemoryState::ThreadLocal: - case KMemoryState::Transfered: - case KMemoryState::SharedTransfered: - case KMemoryState::SharedCode: - case KMemoryState::GeneratedCode: - case KMemoryState::CodeOut: - case KMemoryState::Coverage: - case KMemoryState::Insecure: + case Svc::MemoryState::Io: + case Svc::MemoryState::Static: + case Svc::MemoryState::Code: + case Svc::MemoryState::CodeData: + case Svc::MemoryState::Shared: + case Svc::MemoryState::AliasCode: + case Svc::MemoryState::AliasCodeData: + case Svc::MemoryState::Stack: + case Svc::MemoryState::ThreadLocal: + case Svc::MemoryState::Transfered: + case Svc::MemoryState::SharedTransfered: + case Svc::MemoryState::SharedCode: + case Svc::MemoryState::GeneratedCode: + case Svc::MemoryState::CodeOut: + case Svc::MemoryState::Coverage: + case Svc::MemoryState::Insecure: return is_in_region && !is_in_heap && !is_in_alias; - case KMemoryState::Normal: + case Svc::MemoryState::Normal: ASSERT(is_in_heap); return is_in_region && !is_in_alias; - case KMemoryState::Ipc: - case KMemoryState::NonSecureIpc: - case KMemoryState::NonDeviceIpc: + case Svc::MemoryState::Ipc: + case Svc::MemoryState::NonSecureIpc: + case Svc::MemoryState::NonDeviceIpc: ASSERT(is_in_alias); return is_in_region && !is_in_heap; default: @@ -3281,21 +3308,16 @@ Result KPageTable::CheckMemoryStateContiguous(size_t* out_blocks_needed, KProces Result KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm, KMemoryAttribute* out_attr, size_t* out_blocks_needed, - KProcessAddress addr, size_t size, KMemoryState state_mask, + KMemoryBlockManager::const_iterator it, + KProcessAddress last_addr, KMemoryState state_mask, KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm, KMemoryAttribute attr_mask, KMemoryAttribute attr, KMemoryAttribute ignore_attr) const { ASSERT(this->IsLockedByCurrentThread()); // Get information about the first block. - const KProcessAddress last_addr = addr + size - 1; - KMemoryBlockManager::const_iterator it = m_memory_block_manager.FindIterator(addr); KMemoryInfo info = it->GetMemoryInfo(); - // If the start address isn't aligned, we need a block. - const size_t blocks_for_start_align = - (Common::AlignDown(GetInteger(addr), PageSize) != info.GetAddress()) ? 1 : 0; - // Validate all blocks in the range have correct state. const KMemoryState first_state = info.m_state; const KMemoryPermission first_perm = info.m_permission; @@ -3321,10 +3343,6 @@ Result KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermission* info = it->GetMemoryInfo(); } - // If the end address isn't aligned, we need a block. - const size_t blocks_for_end_align = - (Common::AlignUp(GetInteger(addr) + size, PageSize) != info.GetEndAddress()) ? 1 : 0; - // Write output state. if (out_state != nullptr) { *out_state = first_state; @@ -3335,9 +3353,39 @@ Result KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermission* if (out_attr != nullptr) { *out_attr = static_cast<KMemoryAttribute>(first_attr & ~ignore_attr); } + + // If the end address isn't aligned, we need a block. if (out_blocks_needed != nullptr) { - *out_blocks_needed = blocks_for_start_align + blocks_for_end_align; + const size_t blocks_for_end_align = + (Common::AlignDown(GetInteger(last_addr), PageSize) + PageSize != info.GetEndAddress()) + ? 1 + : 0; + *out_blocks_needed = blocks_for_end_align; + } + + R_SUCCEED(); +} + +Result KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm, + KMemoryAttribute* out_attr, size_t* out_blocks_needed, + KProcessAddress addr, size_t size, KMemoryState state_mask, + KMemoryState state, KMemoryPermission perm_mask, + KMemoryPermission perm, KMemoryAttribute attr_mask, + KMemoryAttribute attr, KMemoryAttribute ignore_attr) const { + ASSERT(this->IsLockedByCurrentThread()); + + // Check memory state. + const KProcessAddress last_addr = addr + size - 1; + KMemoryBlockManager::const_iterator it = m_memory_block_manager.FindIterator(addr); + R_TRY(this->CheckMemoryState(out_state, out_perm, out_attr, out_blocks_needed, it, last_addr, + state_mask, state, perm_mask, perm, attr_mask, attr, ignore_attr)); + + // If the start address isn't aligned, we need a block. + if (out_blocks_needed != nullptr && + Common::AlignDown(GetInteger(addr), PageSize) != it->GetAddress()) { + ++(*out_blocks_needed); } + R_SUCCEED(); } |