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From: Kim Phillips <kim.phillips@amd.com>
To: <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
	<linux-coco@lists.linux.dev>, <kvm@vger.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>,
	Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	Kim Phillips <kim.phillips@amd.com>,
	Nathan Fontenot <nathan.fontenot@amd.com>
Subject: [PATCH v5 4/8] KVM: selftests: sev_init2: Use BIT_ULL for VMSA feature bit definition
Date: Wed, 26 Aug 2026 17:35:06 -0500	[thread overview]
Message-ID: <20260826223510.3669875-5-kim.phillips@amd.com> (raw)
In-Reply-To: <20260826223510.3669875-1-kim.phillips@amd.com>

SVM_SEV_FEAT_DEBUG_SWAP was defined as 32u, a 32-bit unsigned literal.
The kernel's supported_vmsa_features is a u64 and uses BIT(5) for this
feature. Redefine the selftest macro with BIT_ULL(5) to match that
64-bit semantic and the BIT_ULL(n) form used by the additional feature
bits introduced later in this series, so every feature-bit definition in
the file is uniformly 64-bit wide. The value is unchanged (0x20); this
is a width/consistency cleanup only.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Assisted-by: ClaudeCode:claude-opus-4-7
---
 tools/testing/selftests/kvm/x86/sev_init2_tests.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86/sev_init2_tests.c b/tools/testing/selftests/kvm/x86/sev_init2_tests.c
index 87bff4fbb7ed..61a94c6eec27 100644
--- a/tools/testing/selftests/kvm/x86/sev_init2_tests.c
+++ b/tools/testing/selftests/kvm/x86/sev_init2_tests.c
@@ -13,7 +13,7 @@
 #include "svm_util.h"
 #include "kselftest.h"
 
-#define SVM_SEV_FEAT_DEBUG_SWAP 32u
+#define SVM_SEV_FEAT_DEBUG_SWAP		BIT_ULL(5)
 
 /*
  * Some features may have hidden dependencies, or may only work
-- 
2.43.0


  parent reply	other threads:[~2026-08-26 22:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-26 22:35 [PATCH v5 0/8] Add SEV-SNP BTB Isolation and IBPB-on-Entry guest features Kim Phillips
2026-08-26 22:35 ` [PATCH v5 1/8] x86/bugs: Allow forcing Automatic IBRS with SNP active using spectre_v2=eibrs Kim Phillips
2026-08-27  4:32   ` Pawan Gupta
2026-08-26 22:35 ` [PATCH v5 2/8] x86/bugs: Allow spectre_v2=ibrs on x86 vendors other than Intel Kim Phillips
2026-08-27  4:33   ` Pawan Gupta
2026-08-26 22:35 ` [PATCH v5 3/8] KVM: SVM: Define SVM_SEV_FEAT_* flags using BIT_ULL() Kim Phillips
2026-08-26 22:35 ` Kim Phillips [this message]
2026-08-26 22:35 ` [PATCH v5 5/8] KVM: SEV: Disallow setting SNP-only features for non-SNP guests via a single mask Kim Phillips
2026-08-26 22:35 ` [PATCH v5 6/8] KVM: SEV: Advertise SVM_SEV_FEAT_SNP_ACTIVE Kim Phillips
2026-08-26 22:35 ` [PATCH v5 7/8] KVM: SEV: Add support for IBPB-on-Entry Kim Phillips
2026-08-26 22:35 ` [PATCH v5 8/8] KVM: SEV: Add support for SNP BTB Isolation Kim Phillips

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