diff options
| author | Peter Gonda <pgonda@google.com> | 2023-03-07 20:24:39 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-03-21 11:37:32 +0100 |
| commit | efb339a83368ab25de1a18c0fdff85e01c13a1ea (patch) | |
| tree | d6a2d9ffeaefb71d5a1942020b71020a4ca1852f /include/uapi/linux/psp-sev.h | |
| parent | e8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff) | |
crypto: ccp - Name -1 return value as SEV_RET_NO_FW_CALL
The PSP can return a "firmware error" code of -1 in circumstances where
the PSP has not actually been called. To make this protocol unambiguous,
name the value SEV_RET_NO_FW_CALL.
[ bp: Massage a bit. ]
Signed-off-by: Peter Gonda <pgonda@google.com>
Signed-off-by: Dionna Glaze <dionnaglaze@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20221207010210.2563293-2-dionnaglaze@google.com
Diffstat (limited to 'include/uapi/linux/psp-sev.h')
| -rw-r--r-- | include/uapi/linux/psp-sev.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h index 91b4c63d5cbf..1c9da485318f 100644 --- a/include/uapi/linux/psp-sev.h +++ b/include/uapi/linux/psp-sev.h @@ -36,6 +36,13 @@ enum { * SEV Firmware status code */ typedef enum { + /* + * This error code is not in the SEV spec. Its purpose is to convey that + * there was an error that prevented the SEV firmware from being called. + * The SEV API error codes are 16 bits, so the -1 value will not overlap + * with possible values from the specification. + */ + SEV_RET_NO_FW_CALL = -1, SEV_RET_SUCCESS = 0, SEV_RET_INVALID_PLATFORM_STATE, SEV_RET_INVALID_GUEST_STATE, |