From: Paolo Bonzini <pbonzini@redhat.com>
To: Andy Lutomirski <luto@amacapital.net>, Gleb Natapov <gleb@kernel.org>
Cc: kvm list <kvm@vger.kernel.org>, Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] x86,kvm,vmx: Don't trap writes to CR4.TSD
Date: Wed, 22 Oct 2014 21:52:16 +0200 [thread overview]
Message-ID: <54480AF0.9080806@redhat.com> (raw)
In-Reply-To: <CALCETrXeOh9K4Rkk1jFv_4=VryXm8qfd12MAHFm6yhuOBXoY-g@mail.gmail.com>
On 10/22/2014 09:10 PM, Andy Lutomirski wrote:
> On Tue, Oct 7, 2014 at 5:16 PM, Andy Lutomirski <luto@amacapital.net> wrote:
>> CR4.TSD is guest-owned; don't trap writes to it in VMX guests. This
>> avoids a VM exit on context switches into or out of a PR_TSC_SIGSEGV
>> task.
>
> Friendly ping. I suspect this got lost in KVM Forum, etc.
Yup, will push tomorrow.
Paolo
prev parent reply other threads:[~2014-10-22 19:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-08 0:16 [PATCH] x86,kvm,vmx: Don't trap writes to CR4.TSD Andy Lutomirski
2014-10-22 19:10 ` Andy Lutomirski
2014-10-22 19:52 ` Paolo Bonzini [this message]
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