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On 2017-11-15 21:06, Gandalf Corvotempesta wrote: > 2017-11-15 20:59 GMT+01:00 Max Reitz <mreitz@redhat.com>: >> Well, you can't just add support to qemu-img alone either. Every image >> format supported by qemu-img is one supported by qemu as a whole and >> thus needs a proper block driver that needs to support random accesses >> as well. > > I was

...pose block drivers for that. > > In any case there's no need as qemu/qemu-img can already access files > inside an uncompressed tarball using the offset/size support added to > the raw driver exactly for this purpose: > > https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03945.html If that works, yes. To me it doesn't look like XVA is just a single raw image inside of a tarball, but I may very well be wrong, of course. Max

...es the normal > general-purpose block drivers for that. In any case there's no need as qemu/qemu-img can already access files inside an uncompressed tarball using the offset/size support added to the raw driver exactly for this purpose: https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03945.html Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM gu...

...gt; > > > In any case there's no need as qemu/qemu-img can already access files > > inside an uncompressed tarball using the offset/size support added to > > the raw driver exactly for this purpose: > > > > https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03945.html > > If that works, yes. To me it doesn't look like XVA is just a single raw > image inside of a tarball, but I may very well be wrong, of course. Gandalf, is there an XVA file publically available (pref. not too big) that we can look at? Rich. -- Richard Jones, Virtualizatio...