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ArmPkg/MmCommunication: add helper function converting smc return

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Add helper function converting smc return value to efi status.

Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
This commit is contained in:
levi.yun 2024-12-30 11:14:17 +00:00 committed by mergify[bot]
parent 8f3c157e04
commit 1bebc97b81
2 changed files with 60 additions and 46 deletions
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53
ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c
View File

@ -77,6 +77,35 @@ SendFfaMmCommunicate (
return Status; return Status;
} }
/**
Convert SmcMmRet value to EFI_STATUS.
@param[in] SmcMmRet Mm return code
@retval EFI_SUCCESS
@retval Others Error status correspond to SmcMmRet
**/
STATIC
EFI_STATUS
SmcMmRetToEfiStatus (
IN UINTN SmcMmRet
)
{
switch ((UINT32)SmcMmRet) {
case ARM_SMC_MM_RET_SUCCESS:
return EFI_SUCCESS;
case ARM_SMC_MM_RET_INVALID_PARAMS:
return EFI_INVALID_PARAMETER;
case ARM_SMC_MM_RET_DENIED:
return EFI_ACCESS_DENIED;
case ARM_SMC_MM_RET_NO_MEMORY:
return EFI_OUT_OF_RESOURCES;
default:
return EFI_ACCESS_DENIED;
}
}
/** /**
Send mm communicate request via SPM_MM. Send mm communicate request via SPM_MM.
@ -91,7 +120,6 @@ SendSpmMmCommunicate (
IN VOID IN VOID
) )
{ {
EFI_STATUS Status;
ARM_SMC_ARGS CommunicateSmcArgs; ARM_SMC_ARGS CommunicateSmcArgs;
ZeroMem (&CommunicateSmcArgs, sizeof (ARM_SMC_ARGS)); ZeroMem (&CommunicateSmcArgs, sizeof (ARM_SMC_ARGS));
@ -111,28 +139,7 @@ SendSpmMmCommunicate (
// Call the Standalone MM environment. // Call the Standalone MM environment.
ArmCallSmc (&CommunicateSmcArgs); ArmCallSmc (&CommunicateSmcArgs);
switch (CommunicateSmcArgs.Arg0) { return SmcMmRetToEfiStatus (CommunicateSmcArgs.Arg0);
case ARM_SMC_MM_RET_SUCCESS:
Status = EFI_SUCCESS;
break;
case ARM_SMC_MM_RET_INVALID_PARAMS:
Status = EFI_INVALID_PARAMETER;
break;
case ARM_SMC_MM_RET_DENIED:
Status = EFI_ACCESS_DENIED;
break;
case ARM_SMC_MM_RET_NO_MEMORY:
// Unexpected error since the CommSize was checked for zero length
// prior to issuing the SMC
Status = EFI_OUT_OF_RESOURCES;
ASSERT (0);
break;
default:
Status = EFI_ACCESS_DENIED;
ASSERT (0);
}
return Status;
} }
/** /**

53
ArmPkg/Drivers/MmCommunicationPei/MmCommunicationPei.c
View File

@ -280,6 +280,35 @@ SendFfaMmCommunicate (
return Status; return Status;
} }
/**
Convert SmcMmRet value to EFI_STATUS.
@param[in] SmcMmRet Mm return code
@retval EFI_SUCCESS
@retval Others Error status correspond to SmcMmRet
**/
STATIC
EFI_STATUS
SmcMmRetToEfiStatus (
IN UINTN SmcMmRet
)
{
switch ((UINT32)SmcMmRet) {
case ARM_SMC_MM_RET_SUCCESS:
return EFI_SUCCESS;
case ARM_SMC_MM_RET_INVALID_PARAMS:
return EFI_INVALID_PARAMETER;
case ARM_SMC_MM_RET_DENIED:
return EFI_ACCESS_DENIED;
case ARM_SMC_MM_RET_NO_MEMORY:
return EFI_OUT_OF_RESOURCES;
default:
return EFI_ACCESS_DENIED;
}
}
/** /**
Send mm communicate request via SPM_MM. Send mm communicate request via SPM_MM.
@ -294,7 +323,6 @@ SendSpmMmCommunicate (
VOID VOID
) )
{ {
EFI_STATUS Status;
ARM_SMC_ARGS CommunicateSmcArgs; ARM_SMC_ARGS CommunicateSmcArgs;
ZeroMem (&CommunicateSmcArgs, sizeof (ARM_SMC_ARGS)); ZeroMem (&CommunicateSmcArgs, sizeof (ARM_SMC_ARGS));
@ -314,28 +342,7 @@ SendSpmMmCommunicate (
// Call the Standalone MM environment. // Call the Standalone MM environment.
ArmCallSmc (&CommunicateSmcArgs); ArmCallSmc (&CommunicateSmcArgs);
switch (CommunicateSmcArgs.Arg0) { return SmcMmRetToEfiStatus (CommunicateSmcArgs.Arg0);
case ARM_SMC_MM_RET_SUCCESS:
Status = EFI_SUCCESS;
break;
case ARM_SMC_MM_RET_INVALID_PARAMS:
Status = EFI_INVALID_PARAMETER;
break;
case ARM_SMC_MM_RET_DENIED:
Status = EFI_ACCESS_DENIED;
break;
case ARM_SMC_MM_RET_NO_MEMORY:
// Unexpected error since the CommSize was checked for zero length
// prior to issuing the SMC
Status = EFI_OUT_OF_RESOURCES;
ASSERT (0);
break;
default:
Status = EFI_ACCESS_DENIED;
ASSERT (0);
}
return Status;
} }
/** /**