[SeaBIOS] [Xen-devel] SeaBIOS causing Xen HVM VCPU Triple fault

[Ian Campbell]

On Fri, 2014-02-07 at 14:21 +0400, Michael Tokarev wrote:
> 07.02.2014 14:19, Ian Campbell wrote:
> > On Fri, 2014-02-07 at 02:05 +0400, Michael Tokarev wrote:
> []
> >> Meanwhile I just uploaded another release of seabios to
> >> Debian archive which brings size of bios.bin back to 128Kb,
> >> by disabling XCHI (usb3.0) and PVSCSI -- 1.7.4-3.
> >>
> >> So things should be working fine on debian side again now
> >> (at least on sid), even without patching xen.
> >>
> >> And it looks like we should re-think what we remove from
> >> our (qemu) "stripped-down" bios - as it turns out, Xen
> >> actually uses bios from qemu unchanged...  But it is
> >> really really fragile - on my build (gcc 4.7), with 2
> >> options removed, 128Kb is 99.7% used ;)
> > 
> > Do the seabios packages also produce a non-stripped down seabios for
> 
> Yes, ofcourse.
> 
> > newer qemu? If so then I think the Xen package should just pick that one
> > up instead.
> 
> Sure it should and hopefully will in a near future.  But I also want
> to support pain-free upgrades, so it is better if old xen works with
> new seabios at least for some time.

OK.

Note that the SeaBIOS image is baked into Xen at build time, not picked
up at runtime like with (I think) qemu.


Ian.