Re: [Xen-devel] [PATCH] libxl: Don't insert PCI device into xenstore for HVM guests

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

On 05/29/2015 10:41 AM, Wei Liu wrote:
> On Fri, May 29, 2015 at 08:59:45AM +0100, Ross Lagerwall wrote:
> > When doing passthrough of a PCI device for an HVM guest, don't insert
> > the device into xenstore, otherwise pciback attempts to use it which
> > conflicts with QEMU.
> >
> > This manifests itself such that the first time a device is passed to a
> > domain, it succeeds. Subsequent attempts fail unless the device is
> > unbound from pciback or the machine rebooted.
> The commit message looks sensible to me. However this might break
> qemu-trad PCI passthrough if I'm not mistaken. What QEMU version are you
> using?  Upstream or trad? Have you tested both of them?
qemu-trad. I haven't tested with qemu-upstream.

--
Ross Lagerwall

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