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From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Bader <stefan.bader@canonical.com>,
	kvm@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ben Hutchings <ben@decadent.org.uk>
Subject: Re: regression: nested: L1 3.15+ fails to load kvm-intel on L0 <3.10
Date: Thu, 19 Mar 2015 21:08:17 +0100	[thread overview]
Message-ID: <550B2CB1.4060901@redhat.com> (raw)
In-Reply-To: <550B2A57.4090406@canonical.com>



On 19/03/2015 20:58, Stefan Bader wrote:
> This was added in 3.10. So the range of kernels affected <3.10 back
> to when nested vmx became somewhat usable. For 3.2 Ben (and
> obviously us) would be affected. Apart from that, I believe, it is
> only 3.4 which has an active longterm. At least that change looks
> safer for stable as it sounds like correcting things and not adding
> a feature. I was able to cherry-pick that into a 3.2 kernel and
> then a 3.16 guest successfully can load the kvm-intel module again,
> of course with the same shortcomings as before.

Feel free to backport whatever you want to distro kernels.  But I'm
going to NACK for stable@ anything that is related to nested virt.

The code has changed so much that I simply cannot do a meaningful
review of most patches when applied to old codebases.

Paolo

      reply	other threads:[~2015-03-19 20:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-18  8:46 regression: nested: L1 3.15+ fails to load kvm-intel on L0 <3.15 Stefan Bader
2015-03-18  9:18 ` Paolo Bonzini
2015-03-18  9:59   ` Stefan Bader
2015-03-18 10:27     ` Paolo Bonzini
2015-03-18 10:30       ` Stefan Bader
2015-03-19 19:58   ` regression: nested: L1 3.15+ fails to load kvm-intel on L0 <3.10 Stefan Bader
2015-03-19 20:08     ` Paolo Bonzini [this message]

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