mshv-bindings: Add new constants for SEV-SNP

These constants represents the feature bitmap for the hypervisor supported features. Currently we only support two features and thus I have added only those two constants. The feature bitmap is documented in AMD's SEV-SNP GHCB handling manual. https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/56421.pdf Please refer to Table 1 on page 13. Signed-off-by: Jinank Jain <[email protected]>
rust-vmm · Oct 18, 2023 · dfe33f0 · dfe33f0
1 parent 2cfe1a4
commit dfe33f0
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/mshv-bindings/src/snp.rs b/mshv-bindings/src/snp.rs
@@ -55,6 +55,9 @@ pub const GHCB_INFO_HYPERCALL_OUTPUT: u32 = 3842;
 pub const GHCB_INFO_SPECIAL_DBGPRINT: u32 = 3843;
 pub const GHCB_INFO_SHUTDOWN_REQUEST: u32 = 256;
 
+pub const GHCB_HYP_FEATURE_SEV_SNP: u32 = 1 << 0;
+pub const GHCB_HYP_FEATURE_SEV_SNP_AP_CREATION: u32 = 1 << 1;
+
 #[repr(C, packed)]
 #[derive(Copy, Clone)]
 pub union svm_ghcb_msr {