From: Avi Kivity <avi@redhat.com>
To: stephan.baerwolf@tu-ilmenau.de
Cc: Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: x86 emulator: reject SYSENTER in compatibility mode on AMD guests
Date: Wed, 01 Feb 2012 12:50:42 +0200 [thread overview]
Message-ID: <4F291902.60808@redhat.com> (raw)
In-Reply-To: <4F2917D5.2040203@tu-ilmenau.de>
On 02/01/2012 12:45 PM, Stephan Bärwolf wrote:
> On 02/01/12 11:27, Avi Kivity wrote:
> >
> > +static bool vendor_intel(struct x86_emulate_ctxt *ctxt)
> > +{
> > + u32 eax, ebx, ecx, edx;
> Just to be clean:
>
> Shouldn't eax and ecx be initialized to zero?
Either get_cpuid() initializes them and returns true, or it returns
false and we never evaluate them.
> regards Stephan
> > +
> > + return ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx)
> > + && ebx == X86EMUL_CPUID_VENDOR_GenuineIntel_ebx
> > + && ecx == X86EMUL_CPUID_VENDOR_GenuineIntel_ecx
> > + && edx == X86EMUL_CPUID_VENDOR_GenuineIntel_edx;
> > +}
> > +
>
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-02-01 10:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-01 10:27 [PATCH] KVM: x86 emulator: reject SYSENTER in compatibility mode on AMD guests Avi Kivity
2012-02-01 10:45 ` Stephan Bärwolf
2012-02-01 10:50 ` Avi Kivity [this message]
2012-02-01 10:59 ` Stephan Bärwolf
2012-02-01 11:03 ` Avi Kivity
2012-02-01 11:00 ` Marcelo Tosatti
2012-02-01 13:25 ` Avi Kivity
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