On Tue, Aug 21, 2007 at 12:55:19PM +0100, John Levon wrote: > On Tue, Aug 21, 2007 at 03:37:41AM +0100, Daniel P. Berrange wrote: > > > The Xen impl as coded only works for disks named xvdN, because the code for > > calculating device ID assumes xvdN device numbering scheme: > > > > device = 202 * 256 + minor; > > What's with device numbering at all? Must we really repeat this crazy > Linuxism from xend in libvirt :( We need to convert from 'xvda' into /local/domain/0/backend/vbd/[domid]/[device num] where 'device num' is a crazy ass number XenD calculaties using the formula above. The other option is to just iterate over every backend node comparing the device name field. O(n) vs O(1) xenstore queries. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=| -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list