| Subject | Re: [PATCH RFC v7 24/64] crypto:ccp: Define the SEV-SNP commands | Date | Sun, 22 Jan 2023 18:09:33 +0200 | From | Sabin Rapan <> |
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On 14.12.2022 21:40, Michael Roth wrote: > From: Brijesh Singh <brijesh.singh@amd.com> > > +/* > + * struct sev_user_data_snp_config - system wide configuration value for SNP. > + * > + * @reported_tcb: The TCB version to report in the guest attestation report. > + * @mask_chip_id: Indicates that the CHID_ID field in the attestation report > + * will always be zero. > + */ > +struct sev_user_data_snp_config { > + __u64 reported_tcb; /* In */ > + __u32 mask_chip_id; /* In */ > + __u8 rsvd[52]; > +} __packed; > +
Based on table 45 section 8.6.1 in https://www.amd.com/system/files/TechDocs/56860.pdf I think this should be
struct sev_user_data_snp_config { __u64 reported_tcb; /* In */ __u32 mask_chip_id:1; /* In */ __u32 mask_chip_key:1; /* In */ __u32 rsvd:30; __u8 rsvd1[52]; } __packed;
-- Sabin.
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