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misc: Implement address space size workarounds (#5191)

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* misc: Implement address space size workarounds

This adds code to support userland with less than 39 bits of address
space available by testing reserving multiple sizes and reducing
guess address space when needed.

This is required for ARM64 support when the kernel is
configured to use 63..39 bits for kernel space.(meaning only 38 bits is available to userland)

* Address comments

* Fix 32 bits address space support and address more comments
This commit is contained in:
Mary 2023-06-20 17:33:54 +02:00 • committed by GitHub
parent f9a538bb0f
commit 649d372f7d
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10 changed files with 187 additions and 111 deletions
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29
src/Ryujinx.HLE/HOS/ArmProcessContextFactory.cs
View file

@ -1,4 +1,5 @@
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
using Ryujinx.Cpu;
using Ryujinx.Cpu.AppleHv;
using Ryujinx.Cpu.Jit;
@ -49,7 +50,7 @@ namespace Ryujinx.HLE.HOS
{
var cpuEngine = new HvEngine(_tickSource);
var memoryManager = new HvMemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
processContext = new ArmProcessContext<HvMemoryManager>(pid, cpuEngine, _gpu, memoryManager, for64Bit);
processContext = new ArmProcessContext<HvMemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
}
else
{
@ -57,23 +58,41 @@ namespace Ryujinx.HLE.HOS
if (!MemoryBlock.SupportsFlags(MemoryAllocationFlags.ViewCompatible))
{
Logger.Warning?.Print(LogClass.Cpu, "Host system doesn't support views, falling back to software page table");
mode = MemoryManagerMode.SoftwarePageTable;
}
var cpuEngine = new JitEngine(_tickSource);
AddressSpace addressSpace = null;
if (mode == MemoryManagerMode.HostMapped || mode == MemoryManagerMode.HostMappedUnsafe)
{
if (!AddressSpace.TryCreate(context.Memory, addressSpaceSize, MemoryBlock.GetPageSize() == MemoryManagerHostMapped.PageSize, out addressSpace))
{
Logger.Warning?.Print(LogClass.Cpu, "Address space creation failed, falling back to software page table");
mode = MemoryManagerMode.SoftwarePageTable;
}
}
switch (mode)
{
case MemoryManagerMode.SoftwarePageTable:
var memoryManager = new MemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
processContext = new ArmProcessContext<MemoryManager>(pid, cpuEngine, _gpu, memoryManager, for64Bit);
processContext = new ArmProcessContext<MemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
break;
case MemoryManagerMode.HostMapped:
case MemoryManagerMode.HostMappedUnsafe:
bool unsafeMode = mode == MemoryManagerMode.HostMappedUnsafe;
var memoryManagerHostMapped = new MemoryManagerHostMapped(context.Memory, addressSpaceSize, unsafeMode, invalidAccessHandler);
processContext = new ArmProcessContext<MemoryManagerHostMapped>(pid, cpuEngine, _gpu, memoryManagerHostMapped, for64Bit);
if (addressSpaceSize != addressSpace.AddressSpaceSize)
{
Logger.Warning?.Print(LogClass.Emulation, $"Allocated address space (0x{addressSpace.AddressSpaceSize:X}) is smaller than guest application requirements (0x{addressSpaceSize:X})");
}
var memoryManagerHostMapped = new MemoryManagerHostMapped(addressSpace, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
processContext = new ArmProcessContext<MemoryManagerHostMapped>(pid, cpuEngine, _gpu, memoryManagerHostMapped, addressSpace.AddressSpaceSize, for64Bit);
break;
default: