Re: [Qemu-devel] [PATCH 0/2] Remove hardcoded xen-platform device initialization (v4)

[Michael S. Tsirkin]

On Tue, Jun 18, 2013 at 12:57:54PM +0000, Paul Durrant wrote:
> > -----Original Message-----
> > From: Michael S. Tsirkin [mailto:address@hidden
> > Sent: 18 June 2013 13:52
> > To: Laszlo Ersek
> > Cc: Paul Durrant; address@hidden
> > Subject: Re: [Qemu-devel] [PATCH 0/2] Remove hardcoded xen-platform
> > device initialization (v4)
> > 
> > On Tue, Jun 18, 2013 at 02:37:58PM +0200, Laszlo Ersek wrote:
> > > Hi Paul,
> > >
> > > (xen-devel snipped)
> > >
> > > On 06/18/13 13:16, Paul Durrant wrote:
> > > > Because of concerns over backwards compatibility and a suggestion that
> > > > xenfv should be retired in favour of using the pc machine type I have 
> > > > re-
> > > > worked my original patch into 2 patches:
> > > >
> > > > [PATCH 1/2] Allow use of pc machine type (accel=xen) for Xen HVM
> > > > [PATCH 2/2] Move hardcoded initialization of xen-platform device.
> > > >
> > > > Application of both these patches allows alternative pc machine types to
> > be
> > > > used with the accel=xen option, but preserves the hardcoded creation of
> > > > the xen-platform device only for machine type xenfv.
> > > >
> > > > v3:
> > > > - Add test for xen_enabled() that went missing in v2
> > > >
> > > > v4:
> > > > - Remove erroneous whitespace hunk
> > > > - Replace hw_error() with fprintf()+exit(1)
> > > > - Add braces to single-line if
> > >
> > > can you please offer an opinion in the
> > >
> > >   [PATCH 1/2] pvpanic: initialization cleanup
> > >   http://thread.gmane.org/gmane.comp.emulators.qemu/216940
> > >
> > > thread?
> > >
> > > >From where I stand (which is "quite afar" :)) this series of yours seems
> > > somewhat related to my doubt there.
> > >
> > > Thanks!
> > > Laszlo
> > 
> > OK will make it skip fwcfg as we did earlier.
> > Thanks for the review.
> > 
> 
> Yes, I think the assert(fw_cfg) would be problematic in the xen case where, 
> up until my patch, machine types was necessarily xenfv.
> 
>   Paul

Do you guys actually need the pvpanic device?
How do you know which port to use without fwcfg?

-- 
MST