From: Avi Kivity <avi@redhat.com>
To: kvm-devel <kvm@vger.kernel.org>
Subject: Re: enabling kvm support on a Vaio?
Date: Sun, 16 Nov 2008 14:37:46 +0200 [thread overview]
Message-ID: <4920141A.8060006@redhat.com> (raw)
In-Reply-To: <20081116112855.GA23027@apartia.fr>
Louis-David Mitterrand wrote:
> Hi,
>
> On a brand new Sony Vaio (VGN-FW21Z) VT is disabled and there is no bios
> option to enable it (on my Dell XPS laptop thankfully one can enable VT
> in the bios).
>
> Can Sony's stupidity (or should I say my own stupidity for purchasing
> from that brand) be worked around to enable VT?
>
> Apparently some have used hex editors on bios images with success, but
> each model is a specific case I suppose. Or is there a way to find the
> location of the VT setting in a bios image?
>
If you are able to disassemble and reassemble the bios (most likely this
involves decompression, recompression, and writing a checksum, the code
writes to msr MSR_IA32_FEATURE_CONTROL (0x3a). Nopping out writes to
this msr will allow VT to be used. Any mistake will likely brick the
machine, so be sure to have at least a dozen if you want to experiment.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2008-11-16 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-16 11:28 enabling kvm support on a Vaio? Louis-David Mitterrand
2008-11-16 12:37 ` Avi Kivity [this message]
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