Files
system76-edk2/ArmPkg/Library/ArmSmcLibNull/ArmSmcLibNull.c
Rebecca Cran 4d30352445 ArmPkg: Add SMC helper functions
Add functions ArmCallSmc0/1/2/3 to do SMC calls with 0, 1, 2 or 3
arguments.
The functions return up to 3 values.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-12-14 11:30:26 +00:00

102 lines
2.0 KiB
C

//
// Copyright (c) 2021, NUVIA Inc. All rights reserved.
// Copyright (c) 2016, Linaro Limited. All rights reserved.
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//
#include <Base.h>
#include <Library/ArmSmcLib.h>
#include <IndustryStandard/ArmStdSmc.h>
VOID
ArmCallSmc (
IN OUT ARM_SMC_ARGS *Args
)
{
}
/** Triggers 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
)
{
return SMC_ARCH_CALL_NOT_SUPPORTED;
}
/** 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
)
{
return SMC_ARCH_CALL_NOT_SUPPORTED;
}
/** 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
)
{
return SMC_ARCH_CALL_NOT_SUPPORTED;
}
/** 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
)
{
return SMC_ARCH_CALL_NOT_SUPPORTED;
}