From 95017b8c66f70406e926b278ecdd6d4ec0a93110 Mon Sep 17 00:00:00 2001 From: gdkchan Date: Mon, 2 May 2022 20:30:02 -0300 Subject: Support memory aliasing (#2954) * Back to the origins: Make memory manager take guest PA rather than host address once again * Direct mapping with alias support on Windows * Fixes and remove more of the emulated shared memory * Linux support * Make shared and transfer memory not depend on SharedMemoryStorage * More efficient view mapping on Windows (no more restricted to 4KB pages at a time) * Handle potential access violations caused by partial unmap * Implement host mapping using shared memory on Linux * Add new GetPhysicalAddressChecked method, used to ensure the virtual address is mapped before address translation Also align GetRef behaviour with software memory manager * We don't need a mirrorable memory block for software memory manager mode * Disable memory aliasing tests while we don't have shared memory support on Mac * Shared memory & SIGBUS handler for macOS * Fix typo + nits + re-enable memory tests * Set MAP_JIT_DARWIN on x86 Mac too * Add back the address space mirror * Only set MAP_JIT_DARWIN if we are mapping as executable * Disable aliasing tests again (still fails on Mac) * Fix UnmapView4KB (by not casting size to int) * Use ref counting on memory blocks to delay closing the shared memory handle until all blocks using it are disposed * Address PR feedback * Make RO hold a reference to the guest process memory manager to avoid early disposal Co-authored-by: nastys --- .../WindowsShared/WindowsApiException.cs | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Ryujinx.Memory/WindowsShared/WindowsApiException.cs (limited to 'Ryujinx.Memory/WindowsShared/WindowsApiException.cs') diff --git a/Ryujinx.Memory/WindowsShared/WindowsApiException.cs b/Ryujinx.Memory/WindowsShared/WindowsApiException.cs new file mode 100644 index 00000000..3140d705 --- /dev/null +++ b/Ryujinx.Memory/WindowsShared/WindowsApiException.cs @@ -0,0 +1,24 @@ +using System; + +namespace Ryujinx.Memory.WindowsShared +{ + class WindowsApiException : Exception + { + public WindowsApiException() + { + } + + public WindowsApiException(string functionName) : base(CreateMessage(functionName)) + { + } + + public WindowsApiException(string functionName, Exception inner) : base(CreateMessage(functionName), inner) + { + } + + private static string CreateMessage(string functionName) + { + return $"{functionName} returned error code 0x{WindowsApi.GetLastError():X}."; + } + } +} \ No newline at end of file -- cgit v1.2.3