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

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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