audk/ArmPkg/Include/Library/ArmHvcLib.h

41 lines
808 B
C

/** @file
*
* Copyright (c) 2012-2014, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
**/
#ifndef ARM_HVC_LIB_H_
#define ARM_HVC_LIB_H_
/**
* The size of the HVC 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_HVC_ARGS;
/**
Trigger an HVC call
HVC calls can take up to 8 arguments and return up to 4 return values.
Therefore, the 4 first fields in the ARM_HVC_ARGS structure are used
for both input and output values.
**/
VOID
ArmCallHvc (
IN OUT ARM_HVC_ARGS *Args
);
#endif // ARM_HVC_LIB_H_