/** @file | |
* | |
* Copyright (c) 2021, NUVIA Inc. All rights reserved.<BR> | |
* Copyright (c) 2012-2014, ARM Limited. All rights reserved. | |
* | |
* SPDX-License-Identifier: BSD-2-Clause-Patent | |
* | |
**/ | |
#ifndef ARM_SMC_LIB_H_ | |
#define ARM_SMC_LIB_H_ | |
/** | |
* The size of the SMC 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_SMC_ARGS; | |
/** | |
Trigger an SMC call | |
SMC calls can take up to 7 arguments and return up to 4 return values. | |
Therefore, the 4 first fields in the ARM_SMC_ARGS structure are used | |
for both input and output values. | |
**/ | |
VOID | |
ArmCallSmc ( | |
IN OUT ARM_SMC_ARGS *Args | |
); | |
/** Trigger an SMC call with 3 arguments. | |
@param Function The SMC function. | |
@param Arg1 Argument/result. | |
@param Arg2 Argument/result. | |
@param Arg3 Argument/result. | |
@return The SMC error code. | |
**/ | |
UINTN | |
ArmCallSmc3 ( | |
IN UINTN Function, | |
IN OUT UINTN *Arg1 OPTIONAL, | |
IN OUT UINTN *Arg2 OPTIONAL, | |
IN OUT UINTN *Arg3 OPTIONAL | |
); | |
/** Trigger an SMC call with 2 arguments. | |
@param Function The SMC function. | |
@param Arg1 Argument/result. | |
@param Arg2 Argument/result. | |
@param Arg3 Result. | |
@return The SMC error code. | |
**/ | |
UINTN | |
ArmCallSmc2 ( | |
IN UINTN Function, | |
IN OUT UINTN *Arg1 OPTIONAL, | |
IN OUT UINTN *Arg2 OPTIONAL, | |
OUT UINTN *Arg3 OPTIONAL | |
); | |
/** Trigger an SMC call with 1 argument. | |
@param Function The SMC function. | |
@param Arg1 Argument/result. | |
@param Arg2 Result. | |
@param Arg3 Result. | |
@return The SMC error code. | |
**/ | |
UINTN | |
ArmCallSmc1 ( | |
IN UINTN Function, | |
IN OUT UINTN *Arg1 OPTIONAL, | |
OUT UINTN *Arg2 OPTIONAL, | |
OUT UINTN *Arg3 OPTIONAL | |
); | |
/** Trigger an SMC call with 0 arguments. | |
@param Function The SMC function. | |
@param Arg1 Result. | |
@param Arg2 Result. | |
@param Arg3 Result. | |
@return The SMC error code. | |
**/ | |
UINTN | |
ArmCallSmc0 ( | |
IN UINTN Function, | |
OUT UINTN *Arg1 OPTIONAL, | |
OUT UINTN *Arg2 OPTIONAL, | |
OUT UINTN *Arg3 OPTIONAL | |
); | |
#endif // ARM_SMC_LIB_H_ |