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Support memory aliasing (#2954)

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* 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 <nastys@users.noreply.github.com>
This commit is contained in:
gdkchan 2022-05-02 20:30:02 -03:00 • committed by GitHub
parent 4a892fbdc9
commit 95017b8c66
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41 changed files with 2373 additions and 2155 deletions
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11
Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs
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@ -5,6 +5,7 @@ using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.Loaders.Executables;
using Ryujinx.Memory;
using System;
using System.Collections.Generic;
using System.IO;
@ -566,6 +567,11 @@ namespace Ryujinx.HLE.HOS.Services.Ro
_owner = context.Process.HandleTable.GetKProcess(context.Request.HandleDesc.ToCopy[0]);
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
if (_owner?.CpuMemory is IRefCounted rc)
{
rc.IncrementReferenceCount();
}
return ResultCode.Success;
}
@ -579,6 +585,11 @@ namespace Ryujinx.HLE.HOS.Services.Ro
}
_nroInfos.Clear();
if (_owner?.CpuMemory is IRefCounted rc)
{
rc.DecrementReferenceCount();
}
}
}
}