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

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

[Avi Kivity]

  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.

-- 
error compiling committee.c: too many arguments to function

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

[Kevin O'Connor]

On Thu, Oct 21, 2010 at 12:07:17PM +0200, Avi Kivity wrote:
> 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.

I'm okay with making tags and branches of seabios for bug fixes.  So
far qemu/kvm has just grabbed various builds of seabios - is it
worthwhile to branch off of the seabios-0.6.1 version - which would
mean qemu/kvm would pull in additional changes beyond the bug fix
above?

-Kevin

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

[Avi Kivity]

  On 10/23/2010 04:12 PM, Kevin O'Connor wrote:
> On Thu, Oct 21, 2010 at 12:07:17PM +0200, Avi Kivity wrote:
> >  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.
>
> I'm okay with making tags and branches of seabios for bug fixes.  So
> far qemu/kvm has just grabbed various builds of seabios - is it
> worthwhile to branch off of the seabios-0.6.1 version - which would
> mean qemu/kvm would pull in additional changes beyond the bug fix
> above?

qemu 0.12 is based on 0.5.1-stable, appears to be an untagged commit
qemu 0.13 is based on 17d3e46511, doesn't appear to be a part of a 
branch or a tag?

git-wise, tags are more important than branches.  You can always 
retrofit a branch to a tag (and you can always retrofit a tag to a 
commit hash).  For the qemu git repositories, neither matter so much 
since the commit is recorded in git; but the distro people really like 
nice stable tags with lots of digits and dots in them.


-- 
error compiling committee.c: too many arguments to function

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

[Avi Kivity]

  On 10/25/2010 12:52 PM, Avi Kivity wrote:
>> I'm okay with making tags and branches of seabios for bug fixes.  So
>> far qemu/kvm has just grabbed various builds of seabios - is it
>> worthwhile to branch off of the seabios-0.6.1 version - which would
>> mean qemu/kvm would pull in additional changes beyond the bug fix
>> above?
>
>
> qemu 0.12 is based on 0.5.1-stable, appears to be an untagged commit
> qemu 0.13 is based on 17d3e46511, doesn't appear to be a part of a 
> branch or a tag?
>
> git-wise, tags are more important than branches.  You can always 
> retrofit a branch to a tag (and you can always retrofit a tag to a 
> commit hash).  For the qemu git repositories, neither matter so much 
> since the commit is recorded in git; but the distro people really like 
> nice stable tags with lots of digits and dots in them.
>

On the last kvm conf call Anthony said that he'll be happy to include an 
updated seabios with qemu 0.13.1, so a new release would be appreciated.


-- 
error compiling committee.c: too many arguments to function

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

[Kevin O'Connor]

On Wed, Oct 27, 2010 at 03:27:58PM +0200, Avi Kivity wrote:
> On the last kvm conf call Anthony said that he'll be happy to
> include an updated seabios with qemu 0.13.1, so a new release would
> be appreciated.

I branched and tagged "rel-0.6.1.1".  It only has 6d5a2172
cherry-picked into it.

-Kevin