ryujinx/Ryujinx.HLE/HOS/Kernel/KernelTransfer.cs
gdkchan 00579927e4
Better process implementation (#491)
* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro
2018-11-28 20:18:09 -02:00

71 lines
2.0 KiB
C#

using ChocolArm64.Memory;
namespace Ryujinx.HLE.HOS.Kernel
{
static class KernelTransfer
{
public static bool UserToKernelInt32(Horizon System, long Address, out int Value)
{
KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
if (CurrentProcess.CpuMemory.IsMapped(Address) &&
CurrentProcess.CpuMemory.IsMapped(Address + 3))
{
Value = CurrentProcess.CpuMemory.ReadInt32(Address);
return true;
}
Value = 0;
return false;
}
public static bool UserToKernelString(Horizon System, long Address, int Size, out string Value)
{
KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
if (CurrentProcess.CpuMemory.IsMapped(Address) &&
CurrentProcess.CpuMemory.IsMapped(Address + Size - 1))
{
Value = MemoryHelper.ReadAsciiString(CurrentProcess.CpuMemory, Address, Size);
return true;
}
Value = null;
return false;
}
public static bool KernelToUserInt32(Horizon System, long Address, int Value)
{
KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
if (CurrentProcess.CpuMemory.IsMapped(Address) &&
CurrentProcess.CpuMemory.IsMapped(Address + 3))
{
CurrentProcess.CpuMemory.WriteInt32ToSharedAddr(Address, Value);
return true;
}
return false;
}
public static bool KernelToUserInt64(Horizon System, long Address, long Value)
{
KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
if (CurrentProcess.CpuMemory.IsMapped(Address) &&
CurrentProcess.CpuMemory.IsMapped(Address + 7))
{
CurrentProcess.CpuMemory.WriteInt64(Address, Value);
return true;
}
return false;
}
}
}