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Fix partial unmap reprotection on Windows (#3702)
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parent
8e119a1e96
commit
356e480bf5
1 changed files with 11 additions and 7 deletions
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@ -73,7 +73,7 @@ namespace Ryujinx.Memory.WindowsShared
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lock (_protections)
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{
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_protections.Add(new RangeNode<MemoryPermission>(address, size, MemoryPermission.None));
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_protections.Add(new RangeNode<MemoryPermission>(address, address + size, MemoryPermission.None));
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}
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}
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@ -132,7 +132,7 @@ namespace Ryujinx.Memory.WindowsShared
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try
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{
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UnmapViewInternal(sharedMemory, location, size, owner, updateProtection: false);
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MapViewInternal(sharedMemory, srcOffset, location, size);
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MapViewInternal(sharedMemory, srcOffset, location, size, updateProtection: true);
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}
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finally
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{
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@ -147,8 +147,9 @@ namespace Ryujinx.Memory.WindowsShared
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/// <param name="srcOffset">Offset in the shared memory to map</param>
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/// <param name="location">Address to map the view into</param>
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/// <param name="size">Size of the view in bytes</param>
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/// <param name="updateProtection">Indicates if the memory protections should be updated after the map</param>
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/// <exception cref="WindowsApiException">Thrown when the Windows API returns an error mapping the memory</exception>
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private void MapViewInternal(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size)
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private void MapViewInternal(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, bool updateProtection)
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{
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SplitForMap((ulong)location, (ulong)size, srcOffset);
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@ -168,7 +169,10 @@ namespace Ryujinx.Memory.WindowsShared
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throw new WindowsApiException("MapViewOfFile3");
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}
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UpdateProtection((ulong)location, (ulong)size, MemoryPermission.ReadAndWrite);
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if (updateProtection)
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{
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UpdateProtection((ulong)location, (ulong)size, MemoryPermission.ReadAndWrite);
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}
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}
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/// <summary>
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@ -330,7 +334,7 @@ namespace Ryujinx.Memory.WindowsShared
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{
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ulong remapSize = startAddress - overlap.Start;
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MapViewInternal(sharedMemory, overlap.Value, (IntPtr)overlap.Start, (IntPtr)remapSize);
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MapViewInternal(sharedMemory, overlap.Value, (IntPtr)overlap.Start, (IntPtr)remapSize, updateProtection: false);
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RestoreRangeProtection(overlap.Start, remapSize);
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}
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@ -341,7 +345,7 @@ namespace Ryujinx.Memory.WindowsShared
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ulong remapAddress = overlap.Start + overlappedSize;
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ulong remapSize = overlap.End - endAddress;
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MapViewInternal(sharedMemory, remapBackingOffset, (IntPtr)remapAddress, (IntPtr)remapSize);
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MapViewInternal(sharedMemory, remapBackingOffset, (IntPtr)remapAddress, (IntPtr)remapSize, updateProtection: false);
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RestoreRangeProtection(remapAddress, remapSize);
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}
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}
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@ -606,7 +610,7 @@ namespace Ryujinx.Memory.WindowsShared
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_protections.Remove(protection);
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if (protection.Value == permission)
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if (protPermission == permission)
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{
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if (startAddress > protAddress)
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{
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