Now that Secure AVIC support is added in the guest, indicate SEV-SNP
guest supports Secure AVIC feature if AMD_SECURE_AVIC config is
enabled.
Co-developed-by: Kishon Vijay Abraham I <kvijayab@xxxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kvijayab@xxxxxxx>
Reviewed-by: Tianyu Lan <tiala@xxxxxxxxxxxxx>
Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@xxxxxxx>
---
Changes since v9:
- No change.
arch/x86/boot/compressed/sev.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index 74e083feb2d9..048d3e8839c3 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -238,13 +238,20 @@ bool sev_es_check_ghcb_fault(unsigned long address)
MSR_AMD64_SNP_SECURE_AVIC | \
MSR_AMD64_SNP_RESERVED_MASK)
+#ifdef CONFIG_AMD_SECURE_AVIC
+#define SNP_FEATURE_SECURE_AVIC MSR_AMD64_SNP_SECURE_AVIC
+#else
+#define SNP_FEATURE_SECURE_AVIC 0
+#endif
+
/*
* SNP_FEATURES_PRESENT is the mask of SNP features that are implemented
* by the guest kernel. As and when a new feature is implemented in the
* guest kernel, a corresponding bit should be added to the mask.
*/
#define SNP_FEATURES_PRESENT (MSR_AMD64_SNP_DEBUG_SWAP | \
- MSR_AMD64_SNP_SECURE_TSC)
+ MSR_AMD64_SNP_SECURE_TSC | \
+ SNP_FEATURE_SECURE_AVIC)
u64 snp_get_unsupported_features(u64 status)
{
--
2.34.1
