Ryujinx/Ryujinx.HLE/HOS/Kernel/Common/KernelTransfer.cs
gdkchan f77694e4f7
Implement a new physical memory manager and replace DeviceMemory (#856)
* Implement a new physical memory manager and replace DeviceMemory

* Proper generic constraints

* Fix debug build

* Add memory tests

* New CPU memory manager and general code cleanup

* Remove host memory management from CPU project, use Ryujinx.Memory instead

* Fix tests

* Document exceptions on MemoryBlock

* Fix leak on unix memory allocation

* Proper disposal of some objects on tests

* Fix JitCache not being set as initialized

* GetRef without checks for 8-bits and 16-bits CAS

* Add MemoryBlock destructor

* Throw in separate method to improve codegen

* Address PR feedback

* QueryModified improvements

* Fix memory write tracking not marking all pages as modified in some cases

* Simplify MarkRegionAsModified

* Remove XML doc for ghost param

* Add back optimization to avoid useless buffer updates

* Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper

* Some nits

* Do not perform address translation when size is 0

* Address PR feedback and format NativeInterface class

* Remove ghost parameter description

* Update Ryujinx.Cpu to .NET Core 3.1

* Address PR feedback

* Fix build

* Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified

* Typo
2020-05-04 08:54:50 +10:00

92 lines
2.7 KiB
C#

using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Kernel.Process;
namespace Ryujinx.HLE.HOS.Kernel.Common
{
static class KernelTransfer
{
public static bool UserToKernelInt32(Horizon system, ulong address, out int value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped(address) &&
currentProcess.CpuMemory.IsMapped(address + 3))
{
value = currentProcess.CpuMemory.Read<int>(address);
return true;
}
value = 0;
return false;
}
public static bool UserToKernelInt32Array(Horizon system, ulong address, int[] values)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
for (int index = 0; index < values.Length; index++, address += 4)
{
if (currentProcess.CpuMemory.IsMapped(address) &&
currentProcess.CpuMemory.IsMapped(address + 3))
{
values[index]= currentProcess.CpuMemory.Read<int>(address);
}
else
{
return false;
}
}
return true;
}
public static bool UserToKernelString(Horizon system, ulong address, int size, out string value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped(address) &&
currentProcess.CpuMemory.IsMapped(address + (ulong)size - 1))
{
value = MemoryHelper.ReadAsciiString(currentProcess.CpuMemory, (long)address, size);
return true;
}
value = null;
return false;
}
public static bool KernelToUserInt32(Horizon system, ulong address, int value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped(address) &&
currentProcess.CpuMemory.IsMapped(address + 3))
{
currentProcess.CpuMemory.Write(address, value);
return true;
}
return false;
}
public static bool KernelToUserInt64(Horizon system, ulong address, long value)
{
KProcess currentProcess = system.Scheduler.GetCurrentProcess();
if (currentProcess.CpuMemory.IsMapped(address) &&
currentProcess.CpuMemory.IsMapped(address + 7))
{
currentProcess.CpuMemory.Write(address, value);
return true;
}
return false;
}
}
}