From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Jim Mattson <jmattson@google.com>,
Oliver Upton <oupton@google.com>,
kvm@vger.kernel.org, Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Joerg Roedel <joro@8bytes.org>, David Dunn <daviddunn@google.com>
Subject: Re: [PATCH v4 1/8] KVM: nVMX: Keep KVM updates to BNDCFGS ctrl bits across MSR write
Date: Thu, 7 Apr 2022 00:26:16 +0000 [thread overview]
Message-ID: <Yk4vqJ1nT+JxEpKo@google.com> (raw)
In-Reply-To: <764d42ec-4658-f483-b6cb-03596fa6c819@redhat.com>
On Fri, Mar 04, 2022, Paolo Bonzini wrote:
> On 3/4/22 00:44, Sean Christopherson wrote:
> >
> > diff --git a/arch/x86/kvm/vmx/nested.h b/arch/x86/kvm/vmx/nested.h
> > index c92cea0b8ccc..46dd1967ec08 100644
> > --- a/arch/x86/kvm/vmx/nested.h
> > +++ b/arch/x86/kvm/vmx/nested.h
> > @@ -285,8 +285,8 @@ static inline bool nested_cr4_valid(struct kvm_vcpu *vcpu, unsigned long val)
> > }
> >
> > /* No difference in the restrictions on guest and host CR4 in VMX operation. */
> > -#define nested_guest_cr4_valid nested_cr4_valid
> > -#define nested_host_cr4_valid nested_cr4_valid
> > +#define nested_guest_cr4_valid kvm_is_valid_cr4
> > +#define nested_host_cr4_valid kvm_is_valid_cr4
>
> This doesn't allow the theoretically possible case of L0 setting some
> CR4-fixed-0 bits for L1. I'll send another one.
Are you still planning on sending a proper patch for this?
And more importantly, have we shifted your view on this patch/series?
next prev parent reply other threads:[~2022-04-07 0:26 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-01 6:03 [PATCH v4 0/8] KVM: x86: VMX ctrl MSR + KVM quirk fixes Oliver Upton
2022-03-01 6:03 ` [PATCH v4 1/8] KVM: nVMX: Keep KVM updates to BNDCFGS ctrl bits across MSR write Oliver Upton
2022-03-01 18:00 ` Paolo Bonzini
2022-03-01 18:43 ` Oliver Upton
2022-03-02 12:21 ` Paolo Bonzini
2022-03-02 20:51 ` Oliver Upton
2022-03-02 21:22 ` Paolo Bonzini
2022-03-02 21:54 ` Oliver Upton
2022-03-03 1:43 ` Sean Christopherson
2022-03-03 6:29 ` Paolo Bonzini
2022-03-03 16:15 ` Sean Christopherson
2022-03-03 21:44 ` Jim Mattson
2022-03-03 23:44 ` Sean Christopherson
2022-03-04 15:50 ` Paolo Bonzini
2022-04-07 0:26 ` Sean Christopherson [this message]
2022-04-07 0:29 ` Oliver Upton
2022-04-07 0:32 ` Oliver Upton
2022-04-07 0:34 ` Sean Christopherson
2022-05-27 16:55 ` Sean Christopherson
2022-03-01 6:03 ` [PATCH v4 2/8] KVM: nVMX: Keep KVM updates to PERF_GLOBAL_CTRL " Oliver Upton
2022-03-01 18:01 ` Paolo Bonzini
2022-04-07 0:21 ` Sean Christopherson
2022-03-01 6:03 ` [PATCH v4 3/8] KVM: nVMX: Drop nested_vmx_pmu_refresh() Oliver Upton
2022-03-01 6:03 ` [PATCH v4 4/8] KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2 Oliver Upton
2022-03-09 16:01 ` Paolo Bonzini
2022-03-01 6:03 ` [PATCH v4 5/8] KVM: nVMX: Add a quirk for KVM tweaks to VMX control MSRs Oliver Upton
2022-04-07 0:28 ` Sean Christopherson
2022-03-01 6:03 ` [PATCH v4 6/8] selftests: KVM: Separate static alloc from KVM_GET_SUPPORTED_CPUID call Oliver Upton
2022-03-01 6:03 ` [PATCH v4 7/8] selftests: KVM: Add test for PERF_GLOBAL_CTRL VMX control MSR bits Oliver Upton
2022-03-01 16:59 ` David Dunn
2022-03-01 6:03 ` [PATCH v4 8/8] selftests: KVM: Add test for BNDCFGS " Oliver Upton
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