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Re: [Qemu-devel] [PATCH 0/2] Remove hardcoded xen-platform device initia


From: Paul Durrant
Subject: Re: [Qemu-devel] [PATCH 0/2] Remove hardcoded xen-platform device initialization (v4)
Date: Tue, 18 Jun 2013 12:57:54 +0000

> -----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



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