[SeaBIOS] [Qemu-devel] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM

[Kevin O'Connor]

On Thu, Feb 14, 2013 at 08:16:02PM -0500, Kevin O'Connor wrote:
> On Fri, Feb 15, 2013 at 12:01:38AM +0100, Laszlo Ersek wrote:
> > On 02/14/13 21:55, David Woodhouse wrote:
> > 
> > > Thanks for testing this, btw. Are you looking at suspend/resume too? :)
> > 
> > Entering S3 seemed OK (except the screen was not cleared; using Cirrus).
> > I woke up the guest with
> > 
> > # virsh qemu-monitor-command fw-ovmf.g-f18xfce2012121716.e-rhel63 \
> >       --hmp --cmd system_wakeup
> > 
> > Trailing portion of the log:
> > 
> >   In resume (status=254)
> >   In 32bit resume
> >   rsdp=0x00000000
> >   No resume vector set!
> 
> That is strange.  As noted elsewhere, on a resume or reboot the cpu
> should have started execution at 0xfffffff0 which is OVMF and not
> SeaBIOS.  I don't understand why/how SeaBIOS would be involved in the
> resume code path at all.

By chance, are you using an older version of kvm?  There was a bug in
kvm that caused changes to memory mapped at 0xe0000-0xfffff to also be
reflected in the "rom" image at 0xfffe0000-0xffffffff.  It was my
understand that this bug was fixed though.

-Kevin