From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Marcelo Tosatti <marcelo-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: [PATCH] Fix SMP shadow instantiation race
Date: Thu, 13 Dec 2007 10:37:47 +0200 [thread overview]
Message-ID: <4760EF5B.3060900@qumranet.com> (raw)
In-Reply-To: <20071212001227.GA27190@dmt>
Marcelo Tosatti wrote:
> There is a race where VCPU0 is shadowing a pagetable entry while VCPU1
> is updating it, which results in a stale shadow copy.
>
> Fix that by comparing the contents of the cached guest pte with the
> current guest pte after write-protecting the guest pagetable.
>
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
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prev parent reply other threads:[~2007-12-13 8:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-10 16:19 [PATCH] Fix SMP shadow instantiation race Marcelo Tosatti
2007-12-10 17:07 ` Avi Kivity
[not found] ` <475D726A.2040901-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-12-10 19:12 ` Marcelo Tosatti
2007-12-10 21:27 ` Avi Kivity
[not found] ` <475DAF51.8060804-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-12-10 22:22 ` Marcelo Tosatti
2007-12-12 0:12 ` Marcelo Tosatti
2007-12-13 8:37 ` Avi Kivity [this message]
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