From: Avi Kivity <avi@redhat.com>
To: Sasha Levin <levinsasha928@gmail.com>
Cc: Joerg Roedel <joro@8bytes.org>,
kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH 1/2] vmx,svm: Add module parameter to ignore the 'in use' check
Date: Tue, 05 Jul 2011 14:14:26 +0300 [thread overview]
Message-ID: <4E12F212.9050606@redhat.com> (raw)
In-Reply-To: <1309864039.4117.57.camel@sasha>
On 07/05/2011 02:07 PM, Sasha Levin wrote:
> >
> > - was a BIOS update attempted? at least VMware uses the same check as
> > kvm, and probably virtualbox as well, so this problem should have been
> > seen before.
>
> We didn't update the BIOS.
>
> virtualbox was installed previously and didn't work properly either -
> thats why he tried kvm afaik.
That's a good data point.
> > - was this after a reset or cold boot?
>
> This was a reset, we didn't try a cold boot.
Unlikely to help, since it was a preexisting problem.
> > - maybe a stealth rootkit is involved?
> >
>
> A rootkit that messed up the MSRs or runs a hidden guest sounds like a
> possibility too.
>
> Alexander Graf suggested it's a simple case of a BIOS vendor not
> implementing specs properly as he has seen a similar case of BIOS only
> allowing to start virtualization on the first CPU.
I agree. But let's try a BIOS update first, if possible.
If that fails, please repost the patches, but for svm only, since we
haven't seen these issues on Intel.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2011-07-05 11:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-04 23:09 [PATCH 1/2] vmx,svm: Add module parameter to ignore the 'in use' check Sasha Levin
2011-07-04 23:09 ` [PATCH 2/2] vmx,svm: Print errors if SVM or VMX were already set Sasha Levin
2011-07-05 0:42 ` Alexander Graf
2011-07-05 6:16 ` Tian, Kevin
2011-07-05 6:14 ` Tian, Kevin
2011-07-05 8:09 ` [PATCH 1/2] vmx,svm: Add module parameter to ignore the 'in use' check Avi Kivity
2011-07-05 8:14 ` Sasha Levin
2011-07-05 9:11 ` Joerg Roedel
2011-07-05 9:32 ` Sasha Levin
2011-07-05 9:37 ` Avi Kivity
2011-07-05 9:56 ` Sasha Levin
2011-07-05 10:37 ` Avi Kivity
2011-07-05 11:07 ` Sasha Levin
2011-07-05 11:14 ` Avi Kivity [this message]
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