Re: Xen 4.3 PCI passthrough possible bug

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Mon, Feb 10, 2014 at 01:29:22PM -0500, Mike Neiderhauser wrote:
> Thanks for the answers on the timeline.
> 
> When I start the HVM with th broadcom adapter, I get this message back.
> Parsing config from /etc/xen/ubuntu-hvm-1.cfg
> libxl: error: libxl_pci.c:990:libxl__device_pci_reset: The kernel doesn't
> support reset from sysfs for PCI device 0000:05:00.0
> libxl: error: libxl_pci.c:990:libxl__device_pci_reset: The kernel doesn't
> support reset from sysfs for PCI device 0000:05:00.1
> 
> However, the devices appear in the HVM.  Is this something that I should be
> concerned about?

No. Xen pciback does the reset automatically.

Actually we might want to ditch that reporting in libxl, or maybe just
implement a stub function in xen-pciback so that libxl will be happy.

> 
> 
> 
> On Mon, Feb 10, 2014 at 12:11 PM, George Dunlap <dunlapg@umich.edu> wrote:
> 
> > On Sat, Feb 8, 2014 at 5:42 PM, Mike Neiderhauser
> > <mikeneiderhauser@gmail.com> wrote:
> > > Works like a charm.  I do not have physical access to the computer this
> > > weekend to verify that the cards are isolated, but the HVM starts and
> > > appears to be working well.
> > >
> > > When do you think Xen 4.4 will be released.  The article I read
> > mentioned it
> > > will be released in 2014 (hinting towards the end of February).  I also
> > read
> > > 'When it is ready.'
> > >
> > > Any timeline would be great.
> >
> > I'm afraid that's about all we can give. :-)  We've locked down
> > development for 2 months now and are working on finding and fixing
> > bugs.  If there are no more blocker bugs or other unforeseen delays,
> > it should be out by the end of February.  But there are necessarily
> > significant unknowns, so we can't make any promises.
> >
> >  -George
> >