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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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29 changed files with 1294 additions and 146 deletions
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70
Ryujinx.HLE/HOS/Kernel/Memory/KPageTableBase.cs
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@ -1,6 +1,8 @@
using Ryujinx.Common;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.Memory;
using Ryujinx.Memory.Range;
using Ryujinx.Horizon.Common;
using System;
using System.Collections.Generic;
@ -29,6 +31,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
private const int MaxBlocksNeededForInsertion = 2;
protected readonly KernelContext Context;
protected virtual bool Supports4KBPages => true;
public ulong AddrSpaceStart { get; private set; }
public ulong AddrSpaceEnd { get; private set; }
@ -366,7 +369,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
return KernelResult.OutOfResource;
}
Result result = MapPages(address, pageList, permission);
Result result = MapPages(address, pageList, permission, MemoryMapFlags.None);
if (result == Result.Success)
{
@ -502,7 +505,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
if (paIsValid)
{
result = MapPages(address, pagesCount, srcPa, permission);
result = MapPages(address, pagesCount, srcPa, permission, MemoryMapFlags.Private);
}
else
{
@ -565,7 +568,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
using var _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
return MapPages(address, pageList, permission);
return MapPages(address, pageList, permission, MemoryMapFlags.Private);
}
public Result MapProcessCodeMemory(ulong dst, ulong src, ulong size)
@ -746,7 +749,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
return KernelResult.InvalidMemState;
}
result = MapPages(_currentHeapAddr, pageList, KMemoryPermission.ReadAndWrite, true, (byte)_heapFillValue);
result = MapPages(_currentHeapAddr, pageList, KMemoryPermission.ReadAndWrite, MemoryMapFlags.Private, true, (byte)_heapFillValue);
if (result != Result.Success)
{
@ -1334,7 +1337,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
ulong currentPagesCount = Math.Min(srcPaPages, dstVaPages);
MapPages(dstVa, currentPagesCount, srcPa, KMemoryPermission.ReadAndWrite);
MapPages(dstVa, currentPagesCount, srcPa, KMemoryPermission.ReadAndWrite, MemoryMapFlags.Private);
dstVa += currentPagesCount * PageSize;
srcPa += currentPagesCount * PageSize;
@ -1878,7 +1881,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
Context.Memory.Fill(GetDramAddressFromPa(firstPageFillAddress), unusedSizeAfter, (byte)_ipcFillValue);
}
Result result = MapPages(currentVa, 1, dstFirstPagePa, permission);
Result result = MapPages(currentVa, 1, dstFirstPagePa, permission, MemoryMapFlags.Private);
if (result != Result.Success)
{
@ -1894,10 +1897,19 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
{
ulong alignedSize = endAddrTruncated - addressRounded;
KPageList pageList = new KPageList();
srcPageTable.GetPhysicalRegions(addressRounded, alignedSize, pageList);
Result result;
Result result = MapPages(currentVa, pageList, permission);
if (srcPageTable.Supports4KBPages)
{
KPageList pageList = new KPageList();
srcPageTable.GetPhysicalRegions(addressRounded, alignedSize, pageList);
result = MapPages(currentVa, pageList, permission, MemoryMapFlags.None);
}
else
{
result = MapForeign(srcPageTable.GetHostRegions(addressRounded, alignedSize), currentVa, alignedSize);
}
if (result != Result.Success)
{
@ -1932,7 +1944,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
Context.Memory.Fill(GetDramAddressFromPa(lastPageFillAddr), unusedSizeAfter, (byte)_ipcFillValue);
Result result = MapPages(currentVa, 1, dstLastPagePa, permission);
Result result = MapPages(currentVa, 1, dstLastPagePa, permission, MemoryMapFlags.Private);
if (result != Result.Success)
{
@ -2884,6 +2896,16 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
return StackRegionStart > address || address + size - 1 > StackRegionEnd - 1;
}
/// <summary>
/// Gets the host regions that make up the given virtual address region.
/// If any part of the virtual region is unmapped, null is returned.
/// </summary>
/// <param name="va">Virtual address of the range</param>
/// <param name="size">Size of the range</param>
/// <returns>The host regions</returns>
/// <exception cref="Ryujinx.Memory.InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
protected abstract IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size);
/// <summary>
/// Gets the physical regions that make up the given virtual address region.
/// If any part of the virtual region is unmapped, null is returned.
@ -2936,10 +2958,18 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
/// <param name="pagesCount">Number of pages to map</param>
/// <param name="srcPa">Physical address where the pages should be mapped. May be ignored if aliasing is not supported</param>
/// <param name="permission">Permission of the region to be mapped</param>
/// <param name="flags">Flags controlling the memory map operation</param>
/// <param name="shouldFillPages">Indicate if the pages should be filled with the <paramref name="fillValue"/> value</param>
/// <param name="fillValue">The value used to fill pages when <paramref name="shouldFillPages"/> is set to true</param>
/// <returns>Result of the mapping operation</returns>
protected abstract Result MapPages(ulong dstVa, ulong pagesCount, ulong srcPa, KMemoryPermission permission, bool shouldFillPages = false, byte fillValue = 0);
protected abstract Result MapPages(
ulong dstVa,
ulong pagesCount,
ulong srcPa,
KMemoryPermission permission,
MemoryMapFlags flags,
bool shouldFillPages = false,
byte fillValue = 0);
/// <summary>
/// Maps a region of memory into the specified physical memory region.
@ -2947,10 +2977,26 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
/// <param name="address">Destination virtual address that should be mapped</param>
/// <param name="pageList">List of physical memory pages where the pages should be mapped. May be ignored if aliasing is not supported</param>
/// <param name="permission">Permission of the region to be mapped</param>
/// <param name="flags">Flags controlling the memory map operation</param>
/// <param name="shouldFillPages">Indicate if the pages should be filled with the <paramref name="fillValue"/> value</param>
/// <param name="fillValue">The value used to fill pages when <paramref name="shouldFillPages"/> is set to true</param>
/// <returns>Result of the mapping operation</returns>
protected abstract Result MapPages(ulong address, KPageList pageList, KMemoryPermission permission, bool shouldFillPages = false, byte fillValue = 0);
protected abstract Result MapPages(
ulong address,
KPageList pageList,
KMemoryPermission permission,
MemoryMapFlags flags,
bool shouldFillPages = false,
byte fillValue = 0);
/// <summary>
/// Maps pages into an arbitrary host memory location.
/// </summary>
/// <param name="regions">Host regions to be mapped into the specified virtual memory region</param>
/// <param name="va">Destination virtual address of the range on this page table</param>
/// <param name="size">Size of the range</param>
/// <returns>Result of the mapping operation</returns>
protected abstract Result MapForeign(IEnumerable<HostMemoryRange> regions, ulong va, ulong size);
/// <summary>
/// Unmaps a region of memory that was previously mapped with one of the page mapping methods.