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

To: John Levon <levon@xxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] HVM resumable with -c flag?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Sat, 13 Sep 2008 08:09:04 +0100
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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

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