linux-kernel - Re: [kvm-devel] 2.6.23.1-rt4 and kvm 48

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Message-ID: <47271057.5040102@qumranet.com>
Date:	Tue, 30 Oct 2007 13:07:03 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	Jan Kiszka <jan.kiszka@...mens.com>
CC:	Carsten Emde <Carsten.Emde@...dl.org>,
	kvm-devel@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [kvm-devel] 2.6.23.1-rt4 and kvm 48

Jan Kiszka wrote:
> Interesting result - you've read about the wbinvd issues? Is there no
> wbinvd in the bios shipped with older kvm? Which VM extension did you
> test, both Intel and AMD? I would bet that your X issues are due to the
> same effect. X startup/shutdown involves a lot of wbinvd calls on my
> test boxes.
>
>   

kvm.git now traps invd and wbinvd on amd, so there shouldn't be any 
issues there.  I hope that Intel will add similar traps in future 
iterations of VT.


-- 
Any sufficiently difficult bug is indistinguishable from a feature.

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