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core: hle: kernel: KPageTable: MapProcessCode: Various cleanup.
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1 changed files with 12 additions and 11 deletions
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@ -276,22 +276,23 @@ ResultCode KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_
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ResultCode KPageTable::MapProcessCode(VAddr addr, std::size_t num_pages, KMemoryState state,
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KMemoryPermission perm) {
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std::lock_guard lock{page_table_lock};
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const u64 size{num_pages * PageSize};
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if (!CanContain(addr, size, state)) {
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return ResultInvalidCurrentMemory;
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}
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// Validate the mapping request.
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R_UNLESS(this->CanContain(addr, size, state), ResultInvalidCurrentMemory);
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if (IsRegionMapped(addr, size)) {
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return ResultInvalidCurrentMemory;
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}
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// Lock the table.
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std::lock_guard lock{page_table_lock};
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// Verify that the destination memory is unmapped.
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R_TRY(this->CheckMemoryState(addr, size, KMemoryState::All, KMemoryState::Free,
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KMemoryPermission::None, KMemoryPermission::None,
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KMemoryAttribute::None, KMemoryAttribute::None));
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KPageLinkedList page_linked_list;
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CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool,
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allocation_option));
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CASCADE_CODE(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup));
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R_TRY(system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool,
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allocation_option));
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R_TRY(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup));
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block_manager->Update(addr, num_pages, state, perm);
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