vm_manager: Amend the returned values for invalid memory queries in QueryMemory()
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.
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@ -28,7 +28,7 @@ static const char* GetMemoryStateName(MemoryState state) {
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"IpcBuffer0", "Stack",
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"ThreadLocal", "TransferMemoryIsolated",
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"TransferMemory", "ProcessMemory",
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"Unknown2", "IpcBuffer1",
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"Inaccessible", "IpcBuffer1",
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"IpcBuffer3", "KernelStack",
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};
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@ -312,10 +312,10 @@ MemoryInfo VMManager::QueryMemory(VAddr address) const {
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memory_info.size = vma->second.size;
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memory_info.state = ToSvcMemoryState(vma->second.meminfo_state);
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} else {
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memory_info.base_address = 0;
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memory_info.base_address = address_space_end;
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memory_info.permission = static_cast<u32>(VMAPermission::None);
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memory_info.size = 0;
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memory_info.state = static_cast<u32>(MemoryState::Unmapped);
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memory_info.size = 0 - address_space_end;
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memory_info.state = static_cast<u32>(MemoryState::Inaccessible);
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}
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return memory_info;
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@ -105,6 +105,9 @@ enum class MemoryState : u32 {
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ProcessMemory = 0x0F | FlagIPC3 | FlagIPC1 | FlagMapped | FlagMemoryPoolAllocated,
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// Used to signify an inaccessible or invalid memory region with memory queries
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Inaccessible = 0x10,
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IpcBuffer1 = 0x11 | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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