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kernel: Implement MapTransferMemory and UnmapTransferMemory (#2386)

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Based on my reversing of kernel 12.0.0
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Mary 2021-06-23 21:52:11 +02:00 • committed by GitHub
parent 50ba233ac6
commit 0644db02ad
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86
Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs
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@ -1095,6 +1095,92 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
return result;
}
public KernelResult MapTransferMemory(int handle, ulong address, ulong size, KMemoryPermission permission)
{
if (!PageAligned(address))
{
return KernelResult.InvalidAddress;
}
if (!PageAligned(size) || size == 0)
{
return KernelResult.InvalidSize;
}
if (address + size <= address)
{
return KernelResult.InvalidMemState;
}
if (permission > KMemoryPermission.ReadAndWrite || permission == KMemoryPermission.Write)
{
return KernelResult.InvalidPermission;
}
KProcess currentProcess = KernelStatic.GetCurrentProcess();
KTransferMemory transferMemory = currentProcess.HandleTable.GetObject<KTransferMemory>(handle);
if (transferMemory == null)
{
return KernelResult.InvalidHandle;
}
if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
currentProcess.MemoryManager.InsideAliasRegion(address, size))
{
return KernelResult.InvalidMemRange;
}
return transferMemory.MapIntoProcess(
currentProcess.MemoryManager,
address,
size,
currentProcess,
permission);
}
public KernelResult UnmapTransferMemory(int handle, ulong address, ulong size)
{
if (!PageAligned(address))
{
return KernelResult.InvalidAddress;
}
if (!PageAligned(size) || size == 0)
{
return KernelResult.InvalidSize;
}
if (address + size <= address)
{
return KernelResult.InvalidMemState;
}
KProcess currentProcess = KernelStatic.GetCurrentProcess();
KTransferMemory transferMemory = currentProcess.HandleTable.GetObject<KTransferMemory>(handle);
if (transferMemory == null)
{
return KernelResult.InvalidHandle;
}
if (currentProcess.MemoryManager.IsInvalidRegion(address, size) ||
currentProcess.MemoryManager.InsideHeapRegion(address, size) ||
currentProcess.MemoryManager.InsideAliasRegion(address, size))
{
return KernelResult.InvalidMemRange;
}
return transferMemory.UnmapFromProcess(
currentProcess.MemoryManager,
address,
size,
currentProcess);
}
public KernelResult MapPhysicalMemory(ulong address, ulong size)
{
if (!PageAligned(address))