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core: hle: kernel: KPageTable: MapProcessCode: Various cleanup.

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This commit is contained in:
bunnei 2022-01-14 23:27:36 -08:00
parent ee25e0a40b
commit 07add23251
1 changed files with 12 additions and 11 deletions
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23
src/core/hle/kernel/k_page_table.cpp
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@ -276,22 +276,23 @@ ResultCode KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_
ResultCode KPageTable::MapProcessCode(VAddr addr, std::size_t num_pages, KMemoryState state,
KMemoryPermission perm) {
std::lock_guard lock{page_table_lock};
const u64 size{num_pages * PageSize};
if (!CanContain(addr, size, state)) {
return ResultInvalidCurrentMemory;
}
// Validate the mapping request.
R_UNLESS(this->CanContain(addr, size, state), ResultInvalidCurrentMemory);
if (IsRegionMapped(addr, size)) {
return ResultInvalidCurrentMemory;
}
// Lock the table.
std::lock_guard lock{page_table_lock};
// Verify that the destination memory is unmapped.
R_TRY(this->CheckMemoryState(addr, size, KMemoryState::All, KMemoryState::Free,
KMemoryPermission::None, KMemoryPermission::None,
KMemoryAttribute::None, KMemoryAttribute::None));
KPageLinkedList page_linked_list;
CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool,
allocation_option));
CASCADE_CODE(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup));
R_TRY(system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool,
allocation_option));
R_TRY(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup));
block_manager->Update(addr, num_pages, state, perm);