On Wed, Jul 07, 2021 at 01:14:35PM -0500, Brijesh Singh wrote:
> diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h
> index 23929a3010df..e75e29c05f59 100644
> --- a/arch/x86/include/asm/sev-common.h
> +++ b/arch/x86/include/asm/sev-common.h
> @@ -63,9 +63,17 @@
> (((((u64)reason_set) & GHCB_MSR_TERM_REASON_SET_MASK) << GHCB_MSR_TERM_REASON_SET_POS) | \
> ((((u64)reason_val) & GHCB_MSR_TERM_REASON_MASK) << GHCB_MSR_TERM_REASON_POS))
>
> +/* Error code from reason set 0 */
... Error codes...
> +#define SEV_TERM_SET_GEN 0
> #define GHCB_SEV_ES_GEN_REQ 0
> #define GHCB_SEV_ES_PROT_UNSUPPORTED 1
>
> #define GHCB_RESP_CODE(v) ((v) & GHCB_MSR_INFO_MASK)
>
> +/* Linux specific reason codes (used with reason set 1) */
... Linux-specific ...
> +#define SEV_TERM_SET_LINUX 1
GHCB doc says:
"This document defines and owns reason code set 0x0"
Should it also say, reason code set 1 is allocated for Linux guest use?
I don't see why not...
Tom?
> +#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 */
> +
> #endif
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
