From: Kim Phillips <kim.phillips@amd.com>
To: <linux-kernel@vger.kernel.org>, <kvm@vger.kernel.org>,
<linux-coco@lists.linux.dev>, <x86@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
"Nikunj A Dadhania" <nikunj@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"Michael Roth" <michael.roth@amd.com>,
Borislav Petkov <borislav.petkov@amd.com>,
Borislav Petkov <bp@alien8.de>, Naveen Rao <naveen.rao@amd.com>,
David Kaplan <david.kaplan@amd.com>,
Kim Phillips <kim.phillips@amd.com>, <stable@kernel.org>
Subject: [PATCH v2 3/3] x86/sev: Rename SNP_FEATURES_PRESENT->SNP_FEATURES_IMPL
Date: Tue, 3 Feb 2026 16:24:05 -0600 [thread overview]
Message-ID: <20260203222405.4065706-4-kim.phillips@amd.com> (raw)
In-Reply-To: <20260203222405.4065706-1-kim.phillips@amd.com>
Rename SNP_FEATURES_PRESENT->SNP_FEATURES_IMPL to denote its
counterpart relationship with SNP_FEATURES_IMPL_REQ.
Fixes: 8c29f0165405 ("x86/sev: Add SEV-SNP guest feature negotiation support")
Suggested-by: Borislav Petkov (AMD) <bp@alien8.de>
Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Nikunj A Dadhania <nikunj@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: stable@kernel.org
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
---
v2: new this series
arch/x86/boot/compressed/sev.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index 2b639703b8dd..aca5313d193c 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -198,11 +198,11 @@ bool sev_es_check_ghcb_fault(unsigned long address)
#endif
/*
- * SNP_FEATURES_PRESENT is the mask of SNP features that are implemented
+ * SNP_FEATURES_IMPL 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 | \
+#define SNP_FEATURES_IMPL (MSR_AMD64_SNP_DEBUG_SWAP | \
MSR_AMD64_SNP_SECURE_TSC | \
SNP_FEATURE_SECURE_AVIC)
@@ -211,7 +211,7 @@ u64 snp_get_unsupported_features(u64 status)
if (!(status & MSR_AMD64_SEV_SNP_ENABLED))
return 0;
- return status & SNP_FEATURES_IMPL_REQ & ~SNP_FEATURES_PRESENT;
+ return status & SNP_FEATURES_IMPL_REQ & ~SNP_FEATURES_IMPL;
}
void snp_check_features(void)
--
2.43.0
prev parent reply other threads:[~2026-02-03 22:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-03 22:24 [PATCH v2 0/3] KVM: SEV: Add support for IBPB-on-Entry Kim Phillips
2026-02-03 22:24 ` [PATCH v2 1/3] x86/sev: Allow IBPB-on-Entry feature for SNP guests Kim Phillips
2026-02-03 22:24 ` [PATCH v2 2/3] KVM: SEV: Add support for IBPB-on-Entry Kim Phillips
2026-02-28 16:55 ` Borislav Petkov
2026-03-02 15:10 ` Sean Christopherson
2026-02-03 22:24 ` Kim Phillips [this message]
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