From: Sean Christopherson <seanjc@google.com>
To: Zeng Guang <guang.zeng@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Maxim Levitsky <mlevitsk@redhat.com>
Subject: Re: [PATCH v2 07/21] KVM: x86: Add a framework for enabling KVM-governed x86 features
Date: Mon, 14 Aug 2023 10:20:40 -0700 [thread overview]
Message-ID: <ZNpiaGsEnoOxAspP@google.com> (raw)
In-Reply-To: <82ba1020-bfbe-dcab-1d8c-961f30c7bf12@intel.com>
On Mon, Aug 14, 2023, Zeng Guang wrote:
>
> On 7/29/2023 9:15 AM, Sean Christopherson wrote:
> > +static __always_inline int kvm_governed_feature_index(unsigned int x86_feature)
> > +{
> > + switch (x86_feature) {
> > +#define KVM_GOVERNED_FEATURE(x) case x: return KVM_GOVERNED_##x;
> > +#include "governed_features.h"
> > + default:
> > + return -1;
> > + }
> > +}
> > +
> > +static __always_inline int kvm_is_governed_feature(unsigned int x86_feature)
> > +{
> > + return kvm_governed_feature_index(x86_feature) >= 0;
> > +}
> > +
>
> I think it proper to return a bool, not "int" instead.
Yeah. I'm pretty sure someone brought this up in v1 too, and I spaced on it.
next prev parent reply other threads:[~2023-08-14 17:21 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-29 1:15 [PATCH v2 00/21] KVM: x86: Add "governed" X86_FEATURE framework Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 01/21] KVM: nSVM: Check instead of asserting on nested TSC scaling support Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 02/21] KVM: nSVM: Load L1's TSC multiplier based on L1 state, not L2 state Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 03/21] KVM: nSVM: Use the "outer" helper for writing multiplier to MSR_AMD64_TSC_RATIO Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 04/21] KVM: SVM: Clean up preemption toggling related " Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 05/21] KVM: x86: Always write vCPU's current TSC offset/ratio in vendor hooks Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 06/21] KVM: nSVM: Skip writes to MSR_AMD64_TSC_RATIO if guest state isn't loaded Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 07/21] KVM: x86: Add a framework for enabling KVM-governed x86 features Sean Christopherson
2023-08-14 4:43 ` Zeng Guang
2023-08-14 17:20 ` Sean Christopherson [this message]
2023-07-29 1:15 ` [PATCH v2 08/21] KVM: x86/mmu: Use KVM-governed feature framework to track "GBPAGES enabled" Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 09/21] KVM: VMX: Recompute "XSAVES enabled" only after CPUID update Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 10/21] KVM: VMX: Check KVM CPU caps, not just VMX MSR support, for XSAVE enabling Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 11/21] KVM: VMX: Rename XSAVES control to follow KVM's preferred "ENABLE_XYZ" Sean Christopherson
2023-07-29 1:15 ` [PATCH v2 12/21] KVM: x86: Use KVM-governed feature framework to track "XSAVES enabled" Sean Christopherson
2023-08-14 6:28 ` Zeng Guang
2023-07-29 1:16 ` [PATCH v2 13/21] KVM: nVMX: Use KVM-governed feature framework to track "nested VMX enabled" Sean Christopherson
2023-08-14 8:11 ` Yuan Yao
2023-07-29 1:16 ` [PATCH v2 14/21] KVM: nSVM: Use KVM-governed feature framework to track "NRIPS enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 15/21] KVM: nSVM: Use KVM-governed feature framework to track "TSC scaling enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 16/21] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 17/21] KVM: nSVM: Use KVM-governed feature framework to track "LBRv enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 18/21] KVM: nSVM: Use KVM-governed feature framework to track "Pause Filter enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 19/21] KVM: nSVM: Use KVM-governed feature framework to track "vGIF enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 20/21] KVM: nSVM: Use KVM-governed feature framework to track "vNMI enabled" Sean Christopherson
2023-07-29 1:16 ` [PATCH v2 21/21] KVM: x86: Disallow guest CPUID lookups when IRQs are disabled Sean Christopherson
2023-08-04 0:40 ` [PATCH v2 00/21] KVM: x86: Add "governed" X86_FEATURE framework Sean Christopherson
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