Ryujinx/Ryujinx.Core/OsHle/Svc/SvcMemory.cs

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using ChocolArm64.Memory;
using ChocolArm64.State;
using Ryujinx.Core.OsHle.Handles;
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using static Ryujinx.Core.OsHle.ErrorCode;
namespace Ryujinx.Core.OsHle.Svc
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{
partial class SvcHandler
{
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private void SvcSetHeapSize(AThreadState ThreadState)
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{
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uint Size = (uint)ThreadState.X1;
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long Position = MemoryRegions.HeapRegionAddress;
if (Size > CurrentHeapSize)
{
Memory.Manager.Map(Position, Size, (int)MemoryType.Heap, AMemoryPerm.RW);
}
else
{
Memory.Manager.Unmap(Position + Size, (long)CurrentHeapSize - Size);
}
CurrentHeapSize = Size;
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ThreadState.X0 = 0;
ThreadState.X1 = (ulong)Position;
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}
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private void SvcSetMemoryAttribute(AThreadState ThreadState)
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{
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long Position = (long)ThreadState.X0;
long Size = (long)ThreadState.X1;
int State0 = (int)ThreadState.X2;
int State1 = (int)ThreadState.X3;
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if ((State0 == 0 && State1 == 0) ||
(State0 == 8 && State1 == 0))
{
Memory.Manager.ClearAttrBit(Position, Size, 3);
}
else if (State0 == 8 && State1 == 8)
{
Memory.Manager.SetAttrBit(Position, Size, 3);
}
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ThreadState.X0 = 0;
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}
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private void SvcMapMemory(AThreadState ThreadState)
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{
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long Dst = (long)ThreadState.X0;
long Src = (long)ThreadState.X1;
long Size = (long)ThreadState.X2;
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if (!IsValidPosition(Src))
{
Logging.Warn($"Tried to map Memory at invalid src address {Src:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
if (!IsValidMapPosition(Dst))
{
Logging.Warn($"Tried to map Memory at invalid dst address {Dst:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
AMemoryMapInfo SrcInfo = Memory.Manager.GetMapInfo(Src);
Memory.Manager.Map(Dst, Size, (int)MemoryType.MappedMemory, SrcInfo.Perm);
Memory.Manager.Reprotect(Src, Size, AMemoryPerm.None);
Memory.Manager.SetAttrBit(Src, Size, 0);
ThreadState.X0 = 0;
}
private void SvcUnmapMemory(AThreadState ThreadState)
{
long Dst = (long)ThreadState.X0;
long Src = (long)ThreadState.X1;
long Size = (long)ThreadState.X2;
if (!IsValidPosition(Src))
{
Logging.Warn($"Tried to unmap Memory at invalid src address {Src:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
if (!IsValidMapPosition(Dst))
{
Logging.Warn($"Tried to unmap Memory at invalid dst address {Dst:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
AMemoryMapInfo DstInfo = Memory.Manager.GetMapInfo(Dst);
Memory.Manager.Unmap(Dst, Size, (int)MemoryType.MappedMemory);
Memory.Manager.Reprotect(Src, Size, DstInfo.Perm);
Memory.Manager.ClearAttrBit(Src, Size, 0);
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ThreadState.X0 = 0;
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}
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private void SvcQueryMemory(AThreadState ThreadState)
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{
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long InfoPtr = (long)ThreadState.X0;
long Position = (long)ThreadState.X2;
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AMemoryMapInfo MapInfo = Memory.Manager.GetMapInfo(Position);
if (MapInfo == null)
{
long AddrSpaceEnd = MemoryRegions.AddrSpaceStart + MemoryRegions.AddrSpaceSize;
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long ReservedSize = (long)(ulong.MaxValue - (ulong)AddrSpaceEnd) + 1;
MapInfo = new AMemoryMapInfo(AddrSpaceEnd, ReservedSize, (int)MemoryType.Reserved, 0, AMemoryPerm.None);
}
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Memory.WriteInt64(InfoPtr + 0x00, MapInfo.Position);
Memory.WriteInt64(InfoPtr + 0x08, MapInfo.Size);
Memory.WriteInt32(InfoPtr + 0x10, MapInfo.Type);
Memory.WriteInt32(InfoPtr + 0x14, MapInfo.Attr);
Memory.WriteInt32(InfoPtr + 0x18, (int)MapInfo.Perm);
Memory.WriteInt32(InfoPtr + 0x1c, 0);
Memory.WriteInt32(InfoPtr + 0x20, 0);
Memory.WriteInt32(InfoPtr + 0x24, 0);
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//TODO: X1.
ThreadState.X0 = 0;
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ThreadState.X1 = 0;
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}
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private void SvcMapSharedMemory(AThreadState ThreadState)
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{
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int Handle = (int)ThreadState.X0;
long Src = (long)ThreadState.X1;
long Size = (long)ThreadState.X2;
int Perm = (int)ThreadState.X3;
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if (!IsValidPosition(Src))
{
Logging.Warn($"Tried to map SharedMemory at invalid address {Src:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
HSharedMem SharedMem = Ns.Os.Handles.GetData<HSharedMem>(Handle);
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if (SharedMem != null)
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{
Memory.Manager.Map(Src, Size, (int)MemoryType.SharedMemory, AMemoryPerm.Write);
AMemoryHelper.FillWithZeros(Memory, Src, (int)Size);
Memory.Manager.Reprotect(Src, Size, (AMemoryPerm)Perm);
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SharedMem.AddVirtualPosition(Src);
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ThreadState.X0 = 0;
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}
//TODO: Error codes.
}
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private void SvcUnmapSharedMemory(AThreadState ThreadState)
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{
int Handle = (int)ThreadState.X0;
long Src = (long)ThreadState.X1;
long Size = (long)ThreadState.X2;
if (!IsValidPosition(Src))
{
Logging.Warn($"Tried to unmap SharedMemory at invalid address {Src:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
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HSharedMem HndData = Ns.Os.Handles.GetData<HSharedMem>(Handle);
if (HndData != null)
{
Memory.Manager.Unmap(Src, Size, (int)MemoryType.SharedMemory);
ThreadState.X0 = 0;
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}
//TODO: Error codes.
}
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private void SvcCreateTransferMemory(AThreadState ThreadState)
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{
long Src = (long)ThreadState.X1;
long Size = (long)ThreadState.X2;
int Perm = (int)ThreadState.X3;
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if (!IsValidPosition(Src))
{
Logging.Warn($"Tried to create TransferMemory at invalid address {Src:x16}!");
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ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidMemRange);
return;
}
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AMemoryMapInfo MapInfo = Memory.Manager.GetMapInfo(Src);
Memory.Manager.Reprotect(Src, Size, (AMemoryPerm)Perm);
HTransferMem HndData = new HTransferMem(Memory, MapInfo.Perm, Src, Size);
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int Handle = Ns.Os.Handles.GenerateId(HndData);
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ThreadState.X1 = (ulong)Handle;
ThreadState.X0 = 0;
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}
private static bool IsValidPosition(long Position)
{
return Position >= MemoryRegions.AddrSpaceStart &&
Position < MemoryRegions.AddrSpaceStart + MemoryRegions.AddrSpaceSize;
}
private static bool IsValidMapPosition(long Position)
{
return Position >= MemoryRegions.MapRegionAddress &&
Position < MemoryRegions.MapRegionAddress + MemoryRegions.MapRegionSize;
}
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}
}