From: Gleb Natapov <gleb@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 3/4] KVM: nVMX: Check all exceptions for intercept during delivery to L2
Date: Wed, 25 Sep 2013 19:31:22 +0300 [thread overview]
Message-ID: <20130925163122.GD30317@redhat.com> (raw)
In-Reply-To: <5242F1B8.6040506@redhat.com>
On Wed, Sep 25, 2013 at 04:22:48PM +0200, Paolo Bonzini wrote:
> Il 25/09/2013 16:19, Gleb Natapov ha scritto:
> >>> > > -static int nested_pf_handled(struct kvm_vcpu *vcpu)
> >>> > > +static int nested_ex_handled(struct kvm_vcpu *vcpu, unsigned nr)
> >>> > > {
> >>> > > struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
> >>> > >
> >>> > > - /* TODO: also check PFEC_MATCH/MASK, not just EB.PF. */
> >> >
> >> > Just one more question, why drop this comment? It doesn't seem
> >> > incorrect in the particular case where nr == PF_VECTOR.
> >
> > I moved it to vmx_inject_page_fault_nested().
>
> Ah, so if you test it there, you shouldn't get here unless the
> PFEC_MASK/MATCH matches.
Yes, PF will never reach here in case of shadow on shadow.
--
Gleb.
next prev parent reply other threads:[~2013-09-25 16:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-25 9:51 [PATCH 0/4] Fix shadow-on-shadow nested VMX Gleb Natapov
2013-09-25 9:51 ` [PATCH 1/4] KVM: nVMX: Amend nested_run_pending logic Gleb Natapov
2013-09-25 9:51 ` [PATCH 2/4] KVM: nVMX: Do not put exception that caused vmexit to IDT_VECTORING_INFO Gleb Natapov
2013-09-25 9:51 ` [PATCH 3/4] KVM: nVMX: Check all exceptions for intercept during delivery to L2 Gleb Natapov
2013-09-25 10:38 ` Paolo Bonzini
2013-09-25 11:00 ` Gleb Natapov
2013-09-25 11:25 ` Paolo Bonzini
2013-09-25 11:52 ` Gleb Natapov
2013-09-25 14:00 ` Paolo Bonzini
2013-09-25 14:19 ` Gleb Natapov
2013-09-25 14:22 ` Paolo Bonzini
2013-09-25 16:31 ` Gleb Natapov [this message]
2013-09-25 9:51 ` [PATCH 4/4] KVM: nVMX: Do not generate #DF if #PF happens during exception delivery into L2 Gleb Natapov
2013-09-25 11:24 ` Paolo Bonzini
2013-09-25 11:51 ` Gleb Natapov
2013-09-25 12:08 ` Paolo Bonzini
2013-09-25 12:21 ` Gleb Natapov
2013-09-25 13:26 ` Paolo Bonzini
2013-09-25 13:36 ` Gleb Natapov
2013-09-25 13:53 ` Paolo Bonzini
2013-09-26 15:10 ` [PATCH 0/4] Fix shadow-on-shadow nested VMX Paolo Bonzini
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