Re: [libvirt] Seabios can't boot from a disk behind i82801b11-bridge device (was Re: [PATCH 6/7] qemu: add dmi-to-pci-bridge controller)

On Mon, Aug 5, 2013 at 3:49 AM, Gerd Hoffmann <kraxel@redhat.com> wrote:

Hi,

...

Ok, isn't that easy. Funny thing is that seabios boots just fine when using "pci-bridge" but doesn't when using "i82801b11-bridge".

Turned out to not be seabios fault at all. Bug is in qemu, i82801b11-bridge completely ignores any io window setup done by the guest. Oops.

cheers, Gerd

Thanks a bunch for tracking that down Gerd. I can confirm that fixes the issue and the libvirt patch to work around this is unnecessary. -- Doug Goldstein