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Implement support for page sizes > 4KB (#4252)

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* Implement support for page sizes > 4KB

* Check and work around more alignment issues

* Was not meant to change this

* Use MemoryBlock.GetPageSize() value for signal handler code

* Do not take the path for private allocations if host supports 4KB pages

* Add Flags attribute on MemoryMapFlags

* Fix dirty region size with 16kb pages

Would accidentally report a size that was too high (generally 16k instead of 4k, uploading 4x as much data)

Co-authored-by: riperiperi <rhy3756547@hotmail.com>
This commit is contained in:
gdkchan 2023-01-17 01:13:24 -03:00 • committed by GitHub
parent 43a83a401e
commit 86fd0643c2
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GPG key ID: 4AEE18F83AFDEB23
29 changed files with 1294 additions and 146 deletions
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43
Ryujinx.Cpu/Jit/MemoryManager.cs
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@ -28,6 +28,9 @@ namespace Ryujinx.Cpu.Jit
private readonly MemoryBlock _backingMemory;
private readonly InvalidAccessHandler _invalidAccessHandler;
/// <inheritdoc/>
public bool Supports4KBPages => true;
/// <summary>
/// Address space width in bits.
/// </summary>
@ -76,7 +79,7 @@ namespace Ryujinx.Cpu.Jit
}
/// <inheritdoc/>
public void Map(ulong va, ulong pa, ulong size)
public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
{
AssertValidAddressAndSize(va, size);
@ -91,9 +94,16 @@ namespace Ryujinx.Cpu.Jit
pa += PageSize;
remainingSize -= PageSize;
}
Tracking.Map(oVa, size);
}
/// <inheritdoc/>
public void MapForeign(ulong va, nuint hostPointer, ulong size)
{
throw new NotSupportedException();
}
/// <inheritdoc/>
public void Unmap(ulong va, ulong size)
{
@ -378,6 +388,32 @@ namespace Ryujinx.Cpu.Jit
return true;
}
/// <inheritdoc/>
public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
{
if (size == 0)
{
return Enumerable.Empty<HostMemoryRange>();
}
var guestRegions = GetPhysicalRegionsImpl(va, size);
if (guestRegions == null)
{
return null;
}
var regions = new HostMemoryRange[guestRegions.Count];
for (int i = 0; i < regions.Length; i++)
{
var guestRegion = guestRegions[i];
IntPtr pointer = _backingMemory.GetPointer(guestRegion.Address, guestRegion.Size);
regions[i] = new HostMemoryRange((nuint)(ulong)pointer, guestRegion.Size);
}
return regions;
}
/// <inheritdoc/>
public IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size)
{
@ -386,6 +422,11 @@ namespace Ryujinx.Cpu.Jit
return Enumerable.Empty<MemoryRange>();
}
return GetPhysicalRegionsImpl(va, size);
}
private List<MemoryRange> GetPhysicalRegionsImpl(ulong va, ulong size)
{
if (!ValidateAddress(va) || !ValidateAddressAndSize(va, size))
{
return null;