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Code Issues Releases Activity

vm_manager: Amend the returned values for invalid memory queries in QueryMemory()

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The kernel returns a memory info instance with the base address set to
the end of the address space, and the size of said block as
0 - address_space_end, it doesn't set both of said members to zero.
This commit is contained in:
Lioncash 2018-12-12 13:26:33 -05:00
parent a8cc03502b
commit eb5f3f67f6
2 changed files with 7 additions and 4 deletions
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8
src/core/hle/kernel/vm_manager.cpp
View file

@ -28,7 +28,7 @@ static const char* GetMemoryStateName(MemoryState state) {
"IpcBuffer0", "Stack",
"ThreadLocal", "TransferMemoryIsolated",
"TransferMemory", "ProcessMemory",
"Unknown2", "IpcBuffer1",
"Inaccessible", "IpcBuffer1",
"IpcBuffer3", "KernelStack",
};
@ -312,10 +312,10 @@ MemoryInfo VMManager::QueryMemory(VAddr address) const {
memory_info.size = vma->second.size;
memory_info.state = ToSvcMemoryState(vma->second.meminfo_state);
} else {
memory_info.base_address = 0;
memory_info.base_address = address_space_end;
memory_info.permission = static_cast<u32>(VMAPermission::None);
memory_info.size = 0;
memory_info.state = static_cast<u32>(MemoryState::Unmapped);
memory_info.size = 0 - address_space_end;
memory_info.state = static_cast<u32>(MemoryState::Inaccessible);
}
return memory_info;

3
src/core/hle/kernel/vm_manager.h
View file

@ -105,6 +105,9 @@ enum class MemoryState : u32 {
ProcessMemory = 0x0F | FlagIPC3 | FlagIPC1 | FlagMapped | FlagMemoryPoolAllocated,
// Used to signify an inaccessible or invalid memory region with memory queries
Inaccessible = 0x10,
IpcBuffer1 = 0x11 | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,