Bug url : http://bugzilla-archived.xenproject.org/bugzilla/show_bug.cgi?id=1905 Above url descripts the bug which i fix in more detail. Add pci = [ '$VF_BDF', '$VF_BDF', '$VF_BDF'], $VF_BDFs are different. pci = [ '$VF_BDF1', '$VF_BDF2', '$VF_BDF3'] is a more accurate description.
-----Original Message----- From: Li, Liang Z Sent: Sunday, December 06, 2015 11:05 PM To: Stefano Stabellini; Chang, JianzhongX Cc: qemu-devel@nongnu.org; pbonz...@redhat.com; xen-de...@lists.xen.org; Lan, Tianyu; konrad.w...@oracle.com Subject: RE: [PATCH] xen_pt: fix failure of attaching & detaching a PCI device to VM repeatedly > > Add pci = [ '$VF_BDF', '$VF_BDF', '$VF_BDF'] in > > This is a bit confusing: it is not actually correct to assign the same > device, even an SR_IOV VF, multiple times, so these must be all different. > More like: > > pci = [ '$VF_BDF1', '$VF_BDF2', '$VF_BDF3'] > > > > hvm guest configuration file. After the guest boot up, detach the > > VFs in sequence by "xl pci-detach $DOMID $VF_BDF", reattach the VFs > > by "xl pci-attach $VF_BDF" in sequence. > > So do you mean: > > xl pci-detach $DOMID $VF_BDF1 > xl pci-detach $DOMID $VF_BDF2 > xl pci-detach $DOMID $VF_BDF3 > xl pci-attach $DOMID $VF_BDF1 > xl pci-attach $DOMID $VF_BDF2 > xl pci-attach $DOMID $VF_BDF3 > > ? I know this bug, I had a patch to fix a similar bug, I think Jianzhong means: xl pci-detach $DOMID $VF_BDF1 xl pci-attach $DOMID $VF_BDF1 xl pci-detach $DOMID $VF_BDF1 xl pci-attach $DOMID $VF_BDF1 ... Liang
