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Signal memory tracking before/after mapping into another process (#1785)

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* Signal memory tracking before/after mapping into another process

* Wording.

* Add missing method.
This commit is contained in:
riperiperi 2020-12-08 00:42:17 +00:00 committed by GitHub
parent 36f6bbf5b9
commit 4594c3b310
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4 changed files with 19 additions and 0 deletions
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8
Ryujinx.HLE/HOS/Kernel/Memory/KMemoryManager.cs
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@ -1656,6 +1656,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
} }
} }
// Signal a read for any resources tracking reads in the region, as the other process is likely to use their data.
_cpuMemory.SignalMemoryTracking(addressTruncated, endAddrRounded - addressTruncated, false);
lock (_blocks) lock (_blocks)
{ {
KernelResult result; KernelResult result;
@ -2036,6 +2039,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
ulong endAddr = address + size; ulong endAddr = address + size;
ulong addressRounded = BitUtils.AlignUp (address, PageSize); ulong addressRounded = BitUtils.AlignUp (address, PageSize);
ulong addressTruncated = BitUtils.AlignDown(address, PageSize);
ulong endAddrRounded = BitUtils.AlignUp (endAddr, PageSize);
ulong endAddrTruncated = BitUtils.AlignDown(endAddr, PageSize); ulong endAddrTruncated = BitUtils.AlignDown(endAddr, PageSize);
ulong pagesCount = addressRounded < endAddrTruncated ? (endAddrTruncated - addressRounded) / PageSize : 0; ulong pagesCount = addressRounded < endAddrTruncated ? (endAddrTruncated - addressRounded) / PageSize : 0;
@ -2071,6 +2076,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
return KernelResult.OutOfResource; return KernelResult.OutOfResource;
} }
// Anything on the client side should see this memory as modified.
_cpuMemory.SignalMemoryTracking(addressTruncated, endAddrRounded - addressTruncated, true);
lock (_blocks) lock (_blocks)
{ {
foreach (KMemoryInfo info in IterateOverRange(addressRounded, endAddrTruncated)) foreach (KMemoryInfo info in IterateOverRange(addressRounded, endAddrTruncated))

5
Ryujinx.Memory.Tests/MockVirtualMemoryManager.cs
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@ -75,6 +75,11 @@ namespace Ryujinx.Memory.Tests
throw new NotImplementedException(); throw new NotImplementedException();
} }
public void SignalMemoryTracking(ulong va, ulong size, bool write)
{
throw new NotImplementedException();
}
public void TrackingReprotect(ulong va, ulong size, MemoryPermission protection) public void TrackingReprotect(ulong va, ulong size, MemoryPermission protection)
{ {
} }

5
Ryujinx.Memory/AddressSpaceManager.cs
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@ -545,5 +545,10 @@ namespace Ryujinx.Memory
_pageTable[l0] = null; _pageTable[l0] = null;
} }
} }
public void SignalMemoryTracking(ulong va, ulong size, bool write)
{
// Only the ARM Memory Manager has tracking for now.
}
} }
} }

1
Ryujinx.Memory/IVirtualMemoryManager.cs
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@ -23,6 +23,7 @@ namespace Ryujinx.Memory
bool IsRangeMapped(ulong va, ulong size); bool IsRangeMapped(ulong va, ulong size);
ulong GetPhysicalAddress(ulong va); ulong GetPhysicalAddress(ulong va);
void SignalMemoryTracking(ulong va, ulong size, bool write);
void TrackingReprotect(ulong va, ulong size, MemoryPermission protection); void TrackingReprotect(ulong va, ulong size, MemoryPermission protection);
} }
} }