b323a01738
* Add host tracked memory manager mode * Skipping flush is no longer needed * Formatting + revert unrelated change * LightningJit: Ensure that dest register is saved for load ops that do partial updates * avoid allocations when doing address space lookup Add missing improvement * IsRmwMemory -> IsPartialRegisterUpdateMemory * Ensure we iterate all private allocations in range * PR feedback and potential fixes * Simplified bridges a lot * Skip calling SignalMappingChanged if Guest is true * Late map bridge too * Force address masking for prefetch instructions * Reprotection for bridges * Move partition list validation to separate debug method * Move host tracked related classes to HostTracked folder * New HostTracked namespace * Move host tracked modes to the end of enum to avoid PPTC invalidation --------- Co-authored-by: riperiperi <rhy3756547@hotmail.com>
86 lines
3.0 KiB
C#
86 lines
3.0 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Cpu.Signal;
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using Ryujinx.Memory;
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using Ryujinx.Memory.Tracking;
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using System;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Cpu
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{
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public class MemoryEhMeilleure : IDisposable
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{
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public delegate ulong TrackingEventDelegate(ulong address, ulong size, bool write);
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private readonly MemoryTracking _tracking;
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private readonly TrackingEventDelegate _trackingEvent;
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private readonly ulong _pageSize;
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private readonly ulong _baseAddress;
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private readonly ulong _mirrorAddress;
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public MemoryEhMeilleure(MemoryBlock addressSpace, MemoryBlock addressSpaceMirror, MemoryTracking tracking, TrackingEventDelegate trackingEvent = null)
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{
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_baseAddress = (ulong)addressSpace.Pointer;
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ulong endAddress = _baseAddress + addressSpace.Size;
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_tracking = tracking;
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_trackingEvent = trackingEvent ?? VirtualMemoryEvent;
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_pageSize = MemoryBlock.GetPageSize();
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bool added = NativeSignalHandler.AddTrackedRegion((nuint)_baseAddress, (nuint)endAddress, Marshal.GetFunctionPointerForDelegate(_trackingEvent));
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if (!added)
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{
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throw new InvalidOperationException("Number of allowed tracked regions exceeded.");
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}
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if (OperatingSystem.IsWindows() && addressSpaceMirror != null)
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{
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// Add a tracking event with no signal handler for the mirror on Windows.
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// The native handler has its own code to check for the partial overlap race when regions are protected by accident,
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// and when there is no signal handler present.
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_mirrorAddress = (ulong)addressSpaceMirror.Pointer;
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ulong endAddressMirror = _mirrorAddress + addressSpace.Size;
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bool addedMirror = NativeSignalHandler.AddTrackedRegion((nuint)_mirrorAddress, (nuint)endAddressMirror, IntPtr.Zero);
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if (!addedMirror)
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{
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throw new InvalidOperationException("Number of allowed tracked regions exceeded.");
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}
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}
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}
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private ulong VirtualMemoryEvent(ulong address, ulong size, bool write)
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{
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ulong pageSize = _pageSize;
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ulong addressAligned = BitUtils.AlignDown(address, pageSize);
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ulong endAddressAligned = BitUtils.AlignUp(address + size, pageSize);
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ulong sizeAligned = endAddressAligned - addressAligned;
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if (_tracking.VirtualMemoryEvent(addressAligned, sizeAligned, write))
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{
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return _baseAddress + address;
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}
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return 0;
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}
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public void Dispose()
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{
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GC.SuppressFinalize(this);
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NativeSignalHandler.RemoveTrackedRegion((nuint)_baseAddress);
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if (_mirrorAddress != 0)
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{
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NativeSignalHandler.RemoveTrackedRegion((nuint)_mirrorAddress);
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}
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}
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}
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}
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