Re: [Xen-devel] status of PV drivers in Xen 4.0

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Apr 20, 2010 at 05:52:58PM +0100, Stefano Stabellini wrote:
> On Tue, 20 Apr 2010, Pasi Kärkkäinen wrote:
> > Getting pvops-based pv-on-hvm drivers to upstream Linux is the ultimate 
> > goal of course :)
> > 
> 
> I temporarily had to slow down my work on that because of other deadlines
> I had in the last months, but soon I should be able to resume my work
> full time.
> I am currently trying to fix a save\restore bug that prevents pv
> drivers or the domain from resuming correctly after a save\restore or a
> migration.
> In particular the call to dpm_suspend_start doesn't leave the kernel in
> a good state in the PV on HVM case and I am not sure why: it seems to hang
> half way through.
> I need to call dpm_suspend_start because xenbus_dev_suspend has to be
> called otherwise the pv drivers don't resume correctly.
>

Thanks for the update!

Hmm.. I guess the code in the old xenlinux based pv-on-hvm drivers is different 
enough
so that it cannot be compared? 

-- Pasi


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