From: Avi Kivity <avi@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>, kvm@vger.kernel.org
Subject: Re: cr3 OOS optimisation breaks 32-bit GNU/kFreeBSD guest
Date: Mon, 23 Feb 2009 16:59:37 +0200 [thread overview]
Message-ID: <49A2B9D9.3030103@redhat.com> (raw)
In-Reply-To: <20090223145208.GA5782@amt.cnet>
Marcelo Tosatti wrote:
>> Thanks for your fast answer and for your help for debugging.
>>
>
> If you confirm that FreeBSD is indeed relying on cr3 to sync global
> pages, it might be better to disable the optimization. Lets hope that is
> not the case.
>
cr3 writes explicitly do not flush global pages; otherwise what would be
the point of global pages at all?
In other words, the only difference between global and non-global pages
is visible via cr3 writes.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-02-23 14:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-23 0:33 cr3 OOS optimisation breaks 32-bit GNU/kFreeBSD guest Aurelien Jarno
2009-02-23 1:47 ` Marcelo Tosatti
2009-02-23 14:01 ` Aurelien Jarno
2009-02-23 14:52 ` Marcelo Tosatti
2009-02-23 14:59 ` Avi Kivity [this message]
2009-02-23 15:06 ` Marcelo Tosatti
2009-02-23 15:16 ` Avi Kivity
2009-03-20 23:14 ` Marcelo Tosatti
2009-03-21 8:51 ` Aurelien Jarno
2009-03-22 9:35 ` Avi Kivity
2009-03-23 17:27 ` Marcelo Tosatti
2009-03-24 9:47 ` Avi Kivity
2009-03-24 11:49 ` Marcelo Tosatti
2009-04-03 21:45 ` Marcelo Tosatti
2009-04-04 10:37 ` Avi Kivity
2009-04-04 17:01 ` Marcelo Tosatti
2009-04-05 8:41 ` Avi Kivity
2009-04-05 11:29 ` Marcelo Tosatti
2009-04-05 11:41 ` Avi Kivity
2009-04-04 23:23 ` Aurelien Jarno
2009-03-24 10:39 ` Aurelien Jarno
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