1 files changed, 73 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Kernel/Common/KernelTransfer.cs b/src/Ryujinx.HLE/HOS/Kernel/Common/KernelTransfer.cs
new file mode 100644
index 00000000..cbc276c5
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Kernel/Common/KernelTransfer.cs
@@ -0,0 +1,73 @@
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Kernel.Process;
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Kernel.Common
+{
+    static class KernelTransfer
+    {
+        public static bool UserToKernel<T>(out T value, ulong address) where T : unmanaged
+        {
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
+
+            if (currentProcess.CpuMemory.IsRangeMapped(address, (ulong)Unsafe.SizeOf<T>()))
+            {
+                value = currentProcess.CpuMemory.Read<T>(address);
+
+                return true;
+            }
+
+            value = default;
+
+            return false;
+        }
+
+        public static bool UserToKernelArray<T>(ulong address, Span<T> values) where T : unmanaged
+        {
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
+
+            Span<byte> data = MemoryMarshal.Cast<T, byte>(values);
+
+            if (currentProcess.CpuMemory.IsRangeMapped(address, (ulong)data.Length))
+            {
+                currentProcess.CpuMemory.Read(address, data);
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public static bool UserToKernelString(out string value, ulong address, uint size)
+        {
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
+
+            if (currentProcess.CpuMemory.IsRangeMapped(address, size))
+            {
+                value = MemoryHelper.ReadAsciiString(currentProcess.CpuMemory, address, size);
+
+                return true;
+            }
+
+            value = null;
+
+            return false;
+        }
+
+        public static bool KernelToUser<T>(ulong address, T value) where T: unmanaged
+        {
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
+
+            if (currentProcess.CpuMemory.IsRangeMapped(address, (ulong)Unsafe.SizeOf<T>()))
+            {
+                currentProcess.CpuMemory.Write(address, value);
+
+                return true;
+            }
+
+            return false;
+        }
+    }
+}
+\ No newline at end of file