1 files changed, 40 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Include/Library/ArmSvcLib.h b/roms/edk2/ArmPkg/Include/Library/ArmSvcLib.h
new file mode 100644
index 000000000..a94ead196
--- /dev/null
+++ b/roms/edk2/ArmPkg/Include/Library/ArmSvcLib.h
@@ -0,0 +1,40 @@
+/** @file
+*
+*  Copyright (c) 2016 - 2017, ARM Limited. All rights reserved.
+*
+*  SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#ifndef __ARM_SVC_LIB__
+#define __ARM_SVC_LIB__
+
+/**
+ * The size of the SVC arguments are different between AArch64 and AArch32.
+ * The native size is used for the arguments.
+ */
+typedef struct {
+  UINTN  Arg0;
+  UINTN  Arg1;
+  UINTN  Arg2;
+  UINTN  Arg3;
+  UINTN  Arg4;
+  UINTN  Arg5;
+  UINTN  Arg6;
+  UINTN  Arg7;
+} ARM_SVC_ARGS;
+
+/**
+  Trigger an SVC call
+
+  SVC calls can take up to 7 arguments and return up to 4 return values.
+  Therefore, the 4 first fields in the ARM_SVC_ARGS structure are used
+  for both input and output values.
+
+**/
+VOID
+ArmCallSvc (
+  IN OUT ARM_SVC_ARGS *Args
+  );
+
+#endif