Greetings Michal, > Sent: Tuesday, October 13, 2020 at 2:51 PM > From: "Michal Privoznik" <mprivozn@xxxxxxxxxx> > To: "daggs" <daggs@xxxxxxx>, libvirt-users@xxxxxxxxxx > Subject: Re: unable to find any master var store for loader error > > Hey, > > I'll paste the interesting part of domain XML here so that it doesn't > get lost: > > <os> > <type arch='x86_64' machine='pc-q35-5.0'>hvm</type> > <loader readonly='yes' > type='pflash'>/usr/share/edk2-ovmf/OVMF_CODE.fd</loader> > <nvram>/var/lib/libvirt/qemu/nvram/vm1_VARS.fd</nvram> > <boot dev='hd'/> > </os> > > And then in qemu.conf you define the pair: > > nvram = [ > "/usr/share/edk2-ovmf/OVMF_CODE.fd:/usr/share/edk2-ovmf/OVMF_VARS.fd", > "/usr/share/edk2-ovmf/OVMF_CODE.secboot.fd:/usr/share/edk2-ovmf/OVMF_VARS.secboot.fd" > ] > > But as the comment in qemu.conf (just above your line) says, this is > ignored if FW metadata files exist which is exactly your case and this bug: > > https://bugzilla.redhat.com/show_bug.cgi?id=1763477 > > For your convenience you can switch to <os firmware='efi'/> (the > <loader/> element will be removed automatically) or if you insist on > using the old style then provide @template attribute to <nvram/>: > > <nvram > template="/usr/share/edk2-ovmf/OVMF_CODE.fd">/var/lib/libvirt/qemu/nvram/vm1_VARS.fd</nvram> > > > There is an internal list that is still consulted when finding matching > _VARS fails, but your path is not on it: > > https://gitlab.com/libvirt/libvirt/-/blob/master/src/qemu/qemu_conf.c#L98 > > But it exists mostly to give distros enough time to switch to FW > descriptors. > > Michal > > thanks for the detailed explanation, I wanted to be sure I understand. the following is needed to be done: 1. replace this: <os> <type arch='x86_64' machine='pc-q35-5.0'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/edk2-ovmf/OVMF_CODE.fd</loader> <nvram>/var/lib/libvirt/qemu/nvram/vm1_VARS.fd</nvram> <boot dev='hd'/> </os> to this: <os firmware='efi'/> <type arch='x86_64' machine='pc-q35-5.0'>hvm</type> <boot dev='hd'/> </os> 2. patch qemu_conf.c to include the custom paths of my fd files? Thanks, Dagg.
