WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] [PATCH 0 of 7] Fix kexec in Xen (take 4)

To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0 of 7] Fix kexec in Xen (take 4)
From: Keir Fraser <keir.xen@xxxxxxxxx>
Date: Thu, 16 Jun 2011 14:13:33 +0100
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 16 Jun 2011 06:14:39 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:user-agent:date:subject:from:to:cc:message-id :thread-topic:thread-index:in-reply-to:mime-version:content-type :content-transfer-encoding; bh=/jhd6D1HX9UD9LwGX5ebRSCeyksk3voWe/tPeBDjmEU=; b=JWxA3OZ93OzbE8TNaBvCTcWNTaAYfTavYgtjDs+ivDRHIOpohyasUz+JlMYTVtofyW XknjIaqeiME/IxytpHJ2z1Yjxb64TTVxdUd+XS72ddY0eTw5dNbP07avc7e01zCgQ6Di YV/HKSMZF9z6UQBPJcnh/DYN0fPE5qFMNX1cw=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=user-agent:date:subject:from:to:cc:message-id:thread-topic :thread-index:in-reply-to:mime-version:content-type :content-transfer-encoding; b=Xww3ZQXtO/m5uGPIhfhg5fMS/IdDI8FKS/bFW142Yx5bZT53QgOdyIb7go2bVcan3C lY6C/xtXNS3n8XUyDyPxdgeCV4fpkYwcDhm/zxTcYAAoztdrTXGoR4CVtZ/Ii+jgkokg 3fx3r/ZFucv1xBWRcK51iGzRiZMkC+yx2u+x4=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4DF9FF9A.2050606@xxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcwsJzFW3HfDKl4+/060zpY/EAwkNg==
Thread-topic: [Xen-devel] [PATCH 0 of 7] Fix kexec in Xen (take 4)
User-agent: Microsoft-Entourage/12.29.0.110113
On 16/06/2011 14:05, "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx> wrote:

> One final thing to say,  These fixes are candidates for backport to 4.1
> as the kexec path is still broken there.

Since I think you ended up with their scope limited to the kexec paths only,
that should be doable.

 -- Keir

> ~Andrew
> 
> On 13/06/11 19:15, Keir Fraser wrote:
>> On 13/06/2011 18:02, "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx> wrote:
>> 
>>> This set of patches are partly bugfixed to problems I have noticed while
>>> working on this area of the codebase, and targeted fixes to get the kexec
>>> path
>>> working again on Xen 4.x
>>> 
>>> The first three patches are small bugfixes which are not directly related to
>>> the kexec problems, but are on the codepath.
>>> 
>>> The next four patches are directly related to fixing the kexec path.
>>> 
>>> These patches cause xen to track the BSP local APIC boot state and return to
>>> it before kexec'ing to a new kernel.  This prevents the kdump kernel falling
>>> over itself when booting in x2apic mode while expecting to be in xapic mode.
>>> 
>>> It also makes sure to disable IO virtualisation, along with fixing the
>>> current
>>> codepath related to disabling Interrup Remapping on Intel VTD boxes.
>> Overall looking much better! I will take a look at the patches individually,
>> and I expect Jan will be looking too. I think we may have a largely
>> check-in-able series here. :-)
>> 
>>  -- Keir
>> 
>>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>> 
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-devel
>> 



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel