[PATCH] efi_loader: Correct value for ARM_SMC_MM_RET_NO_MEMORY

[Heinrich Schuchardt]

On 7/16/20 10:27 PM, Ilias Apalodimas wrote:
> Instead of adding the definition for the specific MM SVC used in
> StandAloneMM we added the one used in the standard SMC calls.
> So change the value from -4 to -5 to match the correct one defined in
> EDK2

Please, rename all your MM return code constants to avoid further confusion:

/* MM SVC return error codes */
#define ARM_SVC_SPM_RET_SUCCESS               0
#define ARM_SVC_SPM_RET_NOT_SUPPORTED        -1
#define ARM_SVC_SPM_RET_INVALID_PARAMS       -2
#define ARM_SVC_SPM_RET_DENIED               -3
#define ARM_SVC_SPM_RET_NO_MEMORY            -5

Best regards

Heinrich

>
> Fixes 23a397d2e2fb: ("efi_loader: Add headers for EDK2 StandAloneMM communication")
> Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
> ---
>  include/mm_communication.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/mm_communication.h b/include/mm_communication.h
> index 193c4d157874..5aa60160ac63 100644
> --- a/include/mm_communication.h
> +++ b/include/mm_communication.h
> @@ -52,14 +52,14 @@ struct efi_mm_communicate_header {
>  #define MM_COMMUNICATE_HEADER_SIZE \
>  	(sizeof(struct efi_mm_communicate_header))
>
> -/* Defined in EDK2 ArmPkg/Include/IndustryStandard/ArmStdSmc.h */
> +/* Defined in EDK2 ArmPkg/Include/IndustryStandard/ArmMmSvc.h */
>
>  /* MM return error codes */
>  #define ARM_SMC_MM_RET_SUCCESS              0
>  #define ARM_SMC_MM_RET_NOT_SUPPORTED       -1
>  #define ARM_SMC_MM_RET_INVALID_PARAMS      -2
>  #define ARM_SMC_MM_RET_DENIED              -3
> -#define ARM_SMC_MM_RET_NO_MEMORY           -4
> +#define ARM_SMC_MM_RET_NO_MEMORY           -5
>
>  /* Defined in EDK2 MdeModulePkg/Include/Guid/SmmVariableCommon.h */
>
>