audk/ArmPkg/Include/Library/ArmSvcLib.h

41 lines
777 B
C

/** @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