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kernel: Implement MapTransferMemory and UnmapTransferMemory (#2386)
Based on my reversing of kernel 12.0.0
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50ba233ac6
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@ -1,3 +1,4 @@
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using Ryujinx.Common;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using Ryujinx.Memory.Range;
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@ -15,6 +16,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
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private readonly List<HostMemoryRange> _ranges;
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private readonly SharedMemoryStorage _storage;
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public ulong Address { get; private set; }
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public ulong Size { get; private set; }
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@ -28,6 +31,15 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
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_ranges = new List<HostMemoryRange>();
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}
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public KTransferMemory(KernelContext context, SharedMemoryStorage storage) : base(context)
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{
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_storage = storage;
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Permission = KMemoryPermission.ReadAndWrite;
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_hasBeenInitialized = true;
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_isMapped = false;
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}
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public KernelResult Initialize(ulong address, ulong size, KMemoryPermission permission)
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{
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KProcess creator = KernelStatic.GetCurrentProcess();
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@ -52,6 +64,83 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
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return result;
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}
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public KernelResult MapIntoProcess(
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KPageTableBase memoryManager,
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ulong address,
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ulong size,
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KProcess process,
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KMemoryPermission permission)
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{
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if (_storage == null)
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{
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throw new NotImplementedException();
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}
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KPageTableBase.PageSize);
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var pageList = _storage.GetPageList();
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if (pageList.GetPagesCount() != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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if (permission != Permission || _isMapped)
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{
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return KernelResult.InvalidState;
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}
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MemoryState state = Permission == KMemoryPermission.None ? MemoryState.TransferMemoryIsolated : MemoryState.TransferMemory;
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KernelResult result = memoryManager.MapPages(address, pageList, state, KMemoryPermission.ReadAndWrite);
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if (result == KernelResult.Success)
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{
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_isMapped = true;
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if (!memoryManager.SupportsMemoryAliasing)
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{
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_storage.Borrow(process, address);
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}
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}
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return result;
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}
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public KernelResult UnmapFromProcess(
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KPageTableBase memoryManager,
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ulong address,
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ulong size,
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KProcess process)
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{
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if (_storage == null)
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{
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throw new NotImplementedException();
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}
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ulong pagesCountRounded = BitUtils.DivRoundUp(size, KPageTableBase.PageSize);
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var pageList = _storage.GetPageList();
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ulong pagesCount = pageList.GetPagesCount();
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if (pagesCount != pagesCountRounded)
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{
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return KernelResult.InvalidSize;
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}
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var ranges = _storage.GetRanges();
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MemoryState state = Permission == KMemoryPermission.None ? MemoryState.TransferMemoryIsolated : MemoryState.TransferMemory;
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KernelResult result = memoryManager.UnmapPages(address, pagesCount, ranges, state);
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if (result == KernelResult.Success)
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{
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_isMapped = false;
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}
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return result;
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}
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protected override void Destroy()
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{
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if (_hasBeenInitialized)
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@ -1095,6 +1095,92 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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return result;
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}
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public KernelResult MapTransferMemory(int handle, ulong address, ulong size, KMemoryPermission permission)
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{
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if (!PageAligned(address))
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{
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return KernelResult.InvalidAddress;
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}
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if (!PageAligned(size) || size == 0)
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{
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return KernelResult.InvalidSize;
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}
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if (address + size <= address)
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{
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return KernelResult.InvalidMemState;
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}
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if (permission > KMemoryPermission.ReadAndWrite || permission == KMemoryPermission.Write)
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{
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return KernelResult.InvalidPermission;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KTransferMemory transferMemory = currentProcess.HandleTable.GetObject<KTransferMemory>(handle);
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if (transferMemory == null)
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{
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return KernelResult.InvalidHandle;
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}
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if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
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currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
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currentProcess.MemoryManager.InsideAliasRegion(address, size))
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{
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return KernelResult.InvalidMemRange;
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}
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return transferMemory.MapIntoProcess(
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currentProcess.MemoryManager,
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address,
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size,
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currentProcess,
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permission);
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}
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public KernelResult UnmapTransferMemory(int handle, ulong address, ulong size)
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{
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if (!PageAligned(address))
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{
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return KernelResult.InvalidAddress;
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}
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if (!PageAligned(size) || size == 0)
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{
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return KernelResult.InvalidSize;
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}
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if (address + size <= address)
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{
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return KernelResult.InvalidMemState;
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}
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KProcess currentProcess = KernelStatic.GetCurrentProcess();
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KTransferMemory transferMemory = currentProcess.HandleTable.GetObject<KTransferMemory>(handle);
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if (transferMemory == null)
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{
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return KernelResult.InvalidHandle;
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}
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if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
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currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
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currentProcess.MemoryManager.InsideAliasRegion(address, size))
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{
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return KernelResult.InvalidMemRange;
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}
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return transferMemory.UnmapFromProcess(
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currentProcess.MemoryManager,
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address,
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size,
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currentProcess);
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}
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public KernelResult MapPhysicalMemory(ulong address, ulong size)
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{
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if (!PageAligned(address))
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@ -135,6 +135,16 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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return _syscall.CreateTransferMemory(address, size, permission, out handle);
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}
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public KernelResult MapTransferMemory32([R(0)] int handle, [R(1)] uint address, [R(2)] uint size, [R(3)] KMemoryPermission permission)
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{
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return _syscall.MapTransferMemory(handle, address, size, permission);
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}
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public KernelResult UnmapTransferMemory32([R(0)] int handle, [R(1)] uint address, [R(2)] uint size)
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{
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return _syscall.UnmapTransferMemory(handle, address, size);
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}
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public KernelResult MapPhysicalMemory32([R(0)] uint address, [R(1)] uint size)
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{
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return _syscall.MapPhysicalMemory(address, size);
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@ -152,6 +152,16 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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return _syscall.CreateTransferMemory(address, size, permission, out handle);
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}
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public KernelResult MapTransferMemory64([R(0)] int handle, [R(1)] ulong address, [R(2)] ulong size, [R(3)] KMemoryPermission permission)
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{
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return _syscall.MapTransferMemory(handle, address, size, permission);
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}
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public KernelResult UnmapTransferMemory64([R(0)] int handle, [R(1)] ulong address, [R(2)] ulong size)
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{
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return _syscall.UnmapTransferMemory(handle, address, size);
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}
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public KernelResult MapPhysicalMemory64([R(0)] ulong address, [R(1)] ulong size)
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{
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return _syscall.MapPhysicalMemory(address, size);
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@ -73,6 +73,8 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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{ 0x43, nameof(Syscall64.ReplyAndReceive64) },
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{ 0x44, nameof(Syscall64.ReplyAndReceiveWithUserBuffer64) },
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{ 0x45, nameof(Syscall64.CreateEvent64) },
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{ 0x51, nameof(Syscall64.MapTransferMemory64) },
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{ 0x52, nameof(Syscall64.UnmapTransferMemory64) },
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{ 0x65, nameof(Syscall64.GetProcessList64) },
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{ 0x6f, nameof(Syscall64.GetSystemInfo64) },
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{ 0x70, nameof(Syscall64.CreatePort64) },
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@ -138,6 +140,8 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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{ 0x41, nameof(Syscall32.AcceptSession32) },
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{ 0x43, nameof(Syscall32.ReplyAndReceive32) },
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{ 0x45, nameof(Syscall32.CreateEvent32) },
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{ 0x51, nameof(Syscall32.MapTransferMemory32) },
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{ 0x52, nameof(Syscall32.UnmapTransferMemory32) },
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{ 0x5F, nameof(Syscall32.FlushProcessDataCache32) },
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{ 0x65, nameof(Syscall32.GetProcessList32) },
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{ 0x6f, nameof(Syscall32.GetSystemInfo32) },
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