Re: [Qemu-devel] qemu-kvm: remove "boot=on|off" drive parameter compatibility (fwd)

[Serge Hallyn <serge.hallyn@canonical.com>]

We (Ubuntu) plan to switch to qemu in the next release which opens in
November.  I suppose there's likely to be a hiccough or two, but I can't
think of any offhand.

-serge

Quoting Scott Moser (smoser@ubuntu.com):
> you should have been added here.
> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 1 Oct 2012 09:19:29
> From: Anthony Liguori <anthony@codemonkey.ws>
> To: Jan Kiszka <jan.kiszka@siemens.com>, Marcelo Tosatti <mtosatti@redhat.com>
> Cc: kvm <kvm@vger.kernel.org>, qemu-devel <qemu-devel@nongnu.org>,
>     Cole Robinson <crobinso@redhat.com>, Scott Moser <smoser@ubuntu.com>,
>     Andreas Färber <afaerber@suse.de>, Michael Tokarev <mjt@tls.msk.ru>
> Subject: Re: qemu-kvm: remove "boot=on|off" drive parameter compatibility
> 
> Jan Kiszka <jan.kiszka@siemens.com> writes:
> 
> > On 2012-10-01 11:31, Marcelo Tosatti wrote:
> >
> > It's not just about default configs. We need to validate if the
> > migration formats are truly compatible (qemu-kvm -> QEMU, the other way
> > around definitely not). For the command line switches, we could provide
> > a wrapper script that translates them into upstream format or simply
> > ignores them. That should be harmless to carry upstream.
> 
> qemu-kvm has:
> 
>  -no-kvm
>  -no-kvm-irqchip
>  -no-kvm-pit
>  -no-kvm-pit-reinjection
>  -tdf <- does nothing
> 
> There are replacements for all of the above.  If we need to add them to
> qemu.git, it's not big deal to add them.
> 
>  -drive ...,boot= <- this is ignored
> 
> cpu_set command for CPU hotplug which is known broken in qemu-kvm.
> 
> testdev which is nice but only used for development
> 
> Default nic is rtl8139 vs. e1000.
> 
> Some logic to move change the default VGA ram size to 16mb for pc-1.2
> (QEMU uses 16mb by default now too).
> 
> I think at this point, none of this matters but I added the various
> distro maintainers to the thread.
> 
> I think it's time for the distros to drop qemu-kvm and just ship
> qemu.git.  Is there anything else that needs to happen to make that
> switch?
> 
> Regards,
> 
> Anthony Liguori
> 
> >
> > But I would really stop worrying about the qemu-kvm code base.
> >
> > Jan
> >
> > --
> > Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
> > Corporate Competence Center Embedded Linux
> > --
> > To unsubscribe from this list: send the line "unsubscribe kvm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html