Il 20/08/2013 11:59, Timon Wang ha scritto: > On Tue, Aug 20, 2013 at 4:33 PM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: >> Il 20/08/2013 08:00, Timon Wang ha scritto: >>> <disk type='file' device='disk'> >>> <driver name='qemu' type='raw' cache='none'/> >>> <source file='/home/images/win2008_2_sys'/> >>> <target dev='hda' bus='ide'/> >>> <boot order='3'/> >>> <address type='drive' controller='0' bus='0' target='0' unit='0'/> >>> </disk> >>> <disk type='file' device='cdrom'> >>> <driver name='qemu' type='raw'/> >>> <source file='/home/isos/windows2008_64r2.iso'/> >>> <target dev='sdc' bus='ide'/> >>> <readonly/> >>> <boot order='1'/> >>> <address type='drive' controller='0' bus='1' target='0' unit='0'/> >>> </disk> >>> <disk type='block' device='disk'> >> >> I'm not sure this will be enough, but if you want passthrough to the >> host device you should use device='lun' here. However, you still would >> not be able to issue SCSI reservations unless you run QEMU with the >> CAP_SYS_RAWIO capability (using "<disk ... rawio='yes'>"). >> > > After change the libvirt xml like this: > <disk type='block' device='lun' rawio='yes'> > <driver name='qemu' type='raw' cache='none'/> > <source dev='/dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk'/> > <target dev='sda' bus='scsi'/> > <shareable/> > <address type='drive' controller='0' bus='0' target='0' unit='0'/> > </disk> > I got these errors: > char device redirected to /dev/pts/1 (label charserial0) > qemu-system-x86_64: -device > scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0: > scsi-block: INQUIRY failed > qemu-system-x86_64: -device > scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0: > Device 'scsi-block' could not be initialized Can you do # ls -l /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk # sg_inq /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk ? Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
