From: Jim Mattson <jmattson@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Gleixner <tglx@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Shuah Khan <shuah@kernel.org>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Clayton Pence <ctpence@google.com>
Cc: Jim Mattson <jmattson@google.com>
Subject: [PATCH 1/3] KVM: x86: Rename supports_cpuid_fault to supports_intel_cpuid_fault
Date: Thu, 2 Apr 2026 15:31:00 -0700 [thread overview]
Message-ID: <20260402223108.650572-2-jmattson@google.com> (raw)
In-Reply-To: <20260402223108.650572-1-jmattson@google.com>
The function, supports_cpuid_fault(), tests for guest support of Intel's
CPUID faulting feature. Rename the function to supports_intel_cpuid_fault()
for clarity.
Signed-off-by: Jim Mattson <jmattson@google.com>
---
arch/x86/kvm/cpuid.h | 2 +-
arch/x86/kvm/x86.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 039b8e6f40ba..51cbe67c992a 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -181,7 +181,7 @@ static inline int guest_cpuid_stepping(struct kvm_vcpu *vcpu)
return x86_stepping(best->eax);
}
-static inline bool supports_cpuid_fault(struct kvm_vcpu *vcpu)
+static inline bool supports_intel_cpuid_fault(struct kvm_vcpu *vcpu)
{
return vcpu->arch.msr_platform_info & MSR_PLATFORM_INFO_CPUID_FAULT;
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0b5d48e75b65..9768f001011d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4264,7 +4264,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_MISC_FEATURES_ENABLES:
if (data & ~MSR_MISC_FEATURES_ENABLES_CPUID_FAULT ||
(data & MSR_MISC_FEATURES_ENABLES_CPUID_FAULT &&
- !supports_cpuid_fault(vcpu)))
+ !supports_intel_cpuid_fault(vcpu)))
return 1;
vcpu->arch.msr_misc_features_enables = data;
break;
--
2.53.0.1213.gd9a14994de-goog
next prev parent reply other threads:[~2026-04-02 22:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-02 22:30 [PATCH 0/3] KVM: x86: Virtualize AMD CPUID faulting Jim Mattson
2026-04-02 22:31 ` Jim Mattson [this message]
2026-04-10 22:21 ` [PATCH 1/3] KVM: x86: Rename supports_cpuid_fault to supports_intel_cpuid_fault Sean Christopherson
2026-04-10 22:22 ` Jim Mattson
2026-04-02 22:31 ` [PATCH 2/3] KVM: x86: Virtualize AMD CPUID faulting Jim Mattson
2026-04-02 22:31 ` [PATCH 3/3] KVM: selftests: Update hwcr_msr_test for CPUID faulting bit Jim Mattson
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