diff options
| author |  Brijesh Singh <brijesh.singh@amd.com>
| 2022-02-09 12:10:04 -0600 |
|---|---|---|
| committer |  Borislav Petkov <bp@suse.de>
| 2022-04-06 13:02:41 +0200 |
| commit | 6c0f74d678c94060932683738b3e227995b363d3 (patch) | |
| tree | df594cefbfe1428235f461516e9ffbcbe0452a37 /arch/x86/include/asm/sev-common.h | |
| parent | x86/mm: Extend cc_attr to include AMD SEV-SNP (diff) | |
| download | linux-6c0f74d678c94060932683738b3e227995b363d3.tar.gz linux-6c0f74d678c94060932683738b3e227995b363d3.tar.bz2 linux-6c0f74d678c94060932683738b3e227995b363d3.zip | |
x86/sev: Define the Linux-specific guest termination reasons
The GHCB specification defines the reason code for reason set 0. The
reason codes defined in the set 0 do not cover all possible causes for a
guest to request termination.
The reason sets 1 to 255 are reserved for the vendor-specific codes.
Reserve the reason set 1 for the Linux guest. Define the error codes for
reason set 1 so that one can have meaningful termination reasons and thus
better guest failure diagnosis.
While at it, change sev_es_terminate() to accept a reason set parameter.
[ bp: Massage commit message. ]
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Venu Busireddy <venu.busireddy@oracle.com>
Link: https://lore.kernel.org/r/20220307213356.2797205-11-brijesh.singh@amd.com
Diffstat (limited to 'arch/x86/include/asm/sev-common.h')
| -rw-r--r-- | arch/x86/include/asm/sev-common.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h index 1b2fd32b42fe..94f0ea574049 100644 --- a/arch/x86/include/asm/sev-common.h +++ b/arch/x86/include/asm/sev-common.h @@ -73,9 +73,17 @@ /* GHCBData[23:16] */ \ ((((u64)reason_val) & 0xff) << 16)) +/* Error codes from reason set 0 */ +#define SEV_TERM_SET_GEN 0 #define GHCB_SEV_ES_GEN_REQ 0 #define GHCB_SEV_ES_PROT_UNSUPPORTED 1 +/* Linux-specific reason codes (used with reason set 1) */ +#define SEV_TERM_SET_LINUX 1 +#define GHCB_TERM_REGISTER 0 /* GHCB GPA registration failure */ +#define GHCB_TERM_PSC 1 /* Page State Change failure */ +#define GHCB_TERM_PVALIDATE 2 /* Pvalidate failure */ + #define GHCB_RESP_CODE(v) ((v) & GHCB_MSR_INFO_MASK) /* |