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Re: [Xen-devel] [PATCH 0/2] x86: XSA-45 followup

  • To: Jan Beulich <JBeulich@xxxxxxxx>
  • From: Keir Fraser <keir.xen@xxxxxxxxx>
  • Date: Fri, 03 May 2013 09:17:45 +0100
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxx>
  • Delivery-date: Fri, 03 May 2013 08:18:18 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Ac5H1rB+0Wu/8yidHkSCeDgFAqgacw==
  • Thread-topic: [Xen-devel] [PATCH 0/2] x86: XSA-45 followup

On 03/05/2013 08:02, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

>>>> On 02.05.13 at 18:29, Keir Fraser <keir.xen@xxxxxxxxx> wrote:
>> On 02/05/2013 15:44, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:
>>> These aren't part of the actual security fixes, but the first helps
>>> proving that what needs to be preemptible now really is. The second
>>> is really just cleanup the potential for which was noticed while putting
>>> together the earlier ones.
>>> 1: cleanup after making various page table manipulation operations
>> preemptible
>>> 2: miscellaneous mm.c cleanup
>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Questionable for 4.3? I'm not sure.
> I'm definitive about the first one, and am even intending to put its
> backports on the stable branches later today (as the whole batch
> already passed the push gate). You may have noticed that I
> committed them already (you should have raised your concern
> regarding committing them at this stage when these were discussed
> on security@), so if you're unhappy with the second one to be
> there we ought to revert it.

Yeah 1/2 looks surely fine, it's just mechanistic cleanup really. 2/2 hmmm
well I think it's okay too -- you wouldn't backport that one though, right?

 -- Keir

> Jan

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