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ArmPkg/StandaloneMmMmuLib: Introduce a SPM_MM status helper fucntion

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Introduce a new helper function SpmMmStatusToEfiStatus() to convert
the SPM_MM status values to EFI_STATUS values.

Signed-off-by: Levi yun <yeoreum.yun@arm.com>
This commit is contained in:
levi.yun 2024-12-23 18:36:00 +00:00 committed by mergify[bot]
parent c56856f068
commit 54e394b4a2
1 changed files with 28 additions and 18 deletions
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46
ArmPkg/Library/StandaloneMmMmuLib/ArmMmuStandaloneMmLib.c
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@ -25,6 +25,33 @@
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
/**
Convert FFA return code to EFI_STATUS.
@param [in] SpmMmStatus SPM_MM return code
@retval EFI_STATUS correspond EFI_STATUS to SpmMmStatus
**/
STATIC
EFI_STATUS
SpmMmStatusToEfiStatus (
IN UINTN SpmMmStatus
)
{
switch (SpmMmStatus) {
case ARM_SPM_MM_RET_SUCCESS:
return EFI_SUCCESS;
case ARM_SPM_MM_RET_INVALID_PARAMS:
return EFI_INVALID_PARAMETER;
case ARM_SPM_MM_RET_DENIED:
return EFI_ACCESS_DENIED;
case ARM_SPM_MM_RET_NO_MEMORY:
return EFI_OUT_OF_RESOURCES;
default:
return EFI_UNSUPPORTED;
}
}
/** Send memory permission request to target.
@param [in, out] SvcArgs Pointer to SVC arguments to send. On
@ -106,24 +133,7 @@ SendMemoryPermissionRequest (
// Bit 31 set means there is an error returned
// See [1], Section 13.5.5.1 MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64 and
// Section 13.5.5.2 MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64.
switch (*RetVal) {
case ARM_SPM_MM_RET_NOT_SUPPORTED:
return EFI_UNSUPPORTED;
case ARM_SPM_MM_RET_INVALID_PARAMS:
return EFI_INVALID_PARAMETER;
case ARM_SPM_MM_RET_DENIED:
return EFI_ACCESS_DENIED;
case ARM_SPM_MM_RET_NO_MEMORY:
return EFI_OUT_OF_RESOURCES;
default:
// Undefined error code received.
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
SpmMmStatusToEfiStatus (*RetVal);
}
return EFI_SUCCESS;