On Thu, Nov 02, 2017 at 05:04:20PM +0100, Gerd Hoffmann wrote: > Hi, > > One problem we have with the serial console support in seabios and > sgabios: It can happen that both are activated. We'll go fix that in > qemu, but that'll work for new qemu versions only, not for the old > already released ones. > > So I think it would be useful if seabios makes sure sgabios and serial > console are not both active at the same time, i.e. in case we find > "vgaroms/sgabios.bin" being present either turn off builtin serial > console, or don't load sgabios (and possibly also enable builtin serial > console).
Historically libvirt will always use '-device sgabios' if the user has requested <bios useserial='yes'/>. So if that -device arg is given, I think QEMU must honour it, which implies QEMU must disable Seabios' own built-in serial console impl in that scenario. 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 :|
