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/
Home Products Support Community News


Re: [Xen-devel] HVM resumable with -c flag?

To: Mike Sun <msun@xxxxxxxxxx>
Subject: Re: [Xen-devel] HVM resumable with -c flag?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 16 Sep 2008 22:05:22 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, John Levon <levon@xxxxxxxxxxxxxxxxx>
Delivery-date: Tue, 16 Sep 2008 14:05:13 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <e4e579070809161230x2856621ld6f20f829c20d8fa@xxxxxxxxxxxxxx>
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: AckYP+59LMJmW4QzEd2riAAWy6hiGQ==
Thread-topic: [Xen-devel] HVM resumable with -c flag?
User-agent: Microsoft-Entourage/
qemu-dm should be quite portable.

 -- Keir

On 16/9/08 20:30, "Mike Sun" <msun@xxxxxxxxxx> wrote:

> Thanks Keir.  It is the qemu-dm.  Hmm, not my dilemma is whether it'd
> be a fairly easy thing to incorporate the newer qemu-dm into a 3.1.x
> branch...  I've made some major changes to the shadow page table code
> for my work and would rather not try and merge them into 3.2.x if I
> don't have to at this point.
> Mike
> On Sat, Sep 13, 2008 at 3:09 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
> wrote:
>> On 13/9/08 03:52, "John Levon" <levon@xxxxxxxxxxxxxxxxx> wrote:
>>> On Fri, Sep 12, 2008 at 04:42:22PM +0100, Keir Fraser wrote:
>>>> On 12/9/08 16:33, "Mike Sun" <msun@xxxxxxxxxx> wrote:
>>>>> Sorry if this is a stupid question, but are you saying that all HVM
>>>>> guests are now resumable and there no longer needs to be any check for
>>>>> that as was done by Brendan Cully's earlier patch requests?
>>>> Correct. All HVM PV drivers must support suspend cancellation (i.e.,
>>>> resume). And without PV drivers, resume is as simple as just continuing
>>>> execution of the guest from where it left off!
>>> Uh, when was this requirement introduced?
>> Since guest resume was supported by hypervisor and tools. We've never
>> supported resume of HVM guests with 'uncooperative' PV drivers installed.
>>  -- Keir

Xen-devel mailing list