[PATCH 60/60] kvm: svm: Advertise full multi-VMPL support to the SNP guest

Jörg Rödel joro at 8bytes.org
Mon Jun 8 07:42:52 PDT 2026


From: Tom Lendacky <thomas.lendacky at amd.com>

Indicate full multi-VMPL support to the guest through the GHCB feature
bitmap.

Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com>
Co-developed-by: Joerg Roedel <joerg.roedel at amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel at amd.com>
---
 arch/x86/kvm/svm/sev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 528c8bd3e8fc..0736e1c778d9 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -43,7 +43,8 @@
 #define GHCB_HV_FT_SUPPORTED	(GHCB_HV_FT_SNP			| \
 				 GHCB_HV_FT_SNP_AP_CREATION	| \
 				 GHCB_HV_FT_SNP_RINJ		| \
-				 GHCB_HV_FT_APIC_ID_LIST)
+				 GHCB_HV_FT_APIC_ID_LIST	| \
+				 GHCB_HV_FT_SNP_MULTI_VMPL)
 
 /*
  * The GHCB spec essentially states that all non-zero error codes other than
-- 
2.53.0




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