[Qemu-devel] Re: [SeaBIOS] [PATCH] mark irq9 active high in DSDT

[Avi Kivity <avi@redhat.com>]

  On 10/21/2010 04:00 AM, Kevin O'Connor wrote:
> On Wed, Oct 20, 2010 at 11:34:41AM +0200, Gleb Natapov wrote:
> >  In PIIX4 SCI (irq9) is active high. Seabios marks it so in interrupt
> >  override table, but some OSes (FreeBSD) require the same information to
> >  be present in DSDT too. Make it so.
> >
> >  Signed-off-by: Gleb Natapov<gleb@redhat.com>
>
> Thanks.

How do we manage the stable series wrt this issue?

qemu-kvm-0.12.5 has a regression within the stable series that this 
patch fixes.  qemu 0.12.5 does not, but only because it does not emulate 
polarity in the I/O APIC correctly.

There are several paths we could take:

- do nothing, bug is fixed in mainline
- release a seabios 0.x.1 for qemu 0.13.1 with this patch
- same, plus seabios 0.y.1 for qemu 0.12.6 with this patch
- skip qemu (which is not truly affected), patch qemu-kvm's copy of 
seabios for both 0.12.z and 0.13.z

The third option is the most "correct" from a release engineering point 
of view, but involves more work for everyone.  The fourth is quick pain 
relief but is a little forky.

-- 
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