On Thu, Apr 10, 2014 at 11:31:11AM +0500, Asadullah Hussain wrote:
There are a couple of problems with passthrough qemu:
1. virsh version/capabilities command executes "qemu -help" but this gives an error in my case because my customized qemu has to receive mandatory non-standard parameters "qemu -c -n -- -help".
Two things - With any reasoanbly recent QEMU version, libvirt no longer uses -help but instead probes via QMP. it runs $QEMU -S -no-user-config -nodefaults -nographic -M none -qmp ..somepath... -pidfile ...somepath... --daemonize - If you are customizing QEMU it is your responsibility to ensure you don't break the above invocation, or equivalently qemu -help. Requiring mandatory non-standard args in either of these cases is just plain broken design. You should only require those args when actually running a full QEMU VM.
2. Similarly when passing arguments as passthrough in a VMs XML. How can I make sure that these non-standard arguments are passed first i.e., My qemu command for a VM should be "qemu -c -n -- <Rest of the standard parameters>"
You can't - you should allow the args to appear in any order. Command line flag order should not be relevant. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|