On Fri, Jul 16, 2021 at 09:49:40PM +0900, Motohiro Kawahito wrote: > > From: "Daniel P. Berrangé" <berrange@xxxxxxxxxx> > > To: Motohiro Kawahito <JL25131@xxxxxxxxxx> > > Cc: libvir-list@xxxxxxxxxx > > Date: 2021/07/16 17:22 > > Subject: [EXTERNAL] Re: Question about skipping > virDomainDiskDefAssignAddress > > > > On Fri, Jul 16, 2021 at 01:01:50PM +0900, Motohiro Kawahito wrote: > > > > From: "Daniel P. Berrangé" <berrange@xxxxxxxxxx> > > > > To: Motohiro Kawahito <JL25131@xxxxxxxxxx> > > > > Cc: libvir-list@xxxxxxxxxx > > > > Date: 2021/07/16 00:42 > > > > Subject: [EXTERNAL] Re: Question about skipping > > > virDomainDiskDefAssignAddress > > > > > > > > > > > With the exception of paravirtualized Xen guests, this field in > > > > libvirt XML is *completely* independant of the guest assigned > > > > device name. > > > > > > > > eg the XML might say /dev/vda, but the guest might decde to > > > > call it /dev/sda, or /dev/whatever or really absolutely > > > > anything. > > > > > > Thank you very much for this information! I understand it. > > > However, I don't understand how we can pass the target device > information > > > (e.g. 0A80) without an error. Do you know how to do it? > > > > > > My question was not good, so I opened another thread (How do we > specify > > > disk device names for non-Linux VMs in XML?). > > > > There is nothing that needs passing. The guest OS decides its naming > > however it wants to. > > We need to control device number from user. This device number would be > used later, such as detach-disk. Can we pass device number from outside? Detach-disk requires the same information that is provided when the disk is first configured in libvir. This is completely separate to the device number / name seen inside the guest. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
