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From: "Andreas Färber" <afaerber@suse.de>
To: Markus Armbruster <armbru@redhat.com>,
	Anthony Liguori <aliguori@us.ibm.com>
Cc: Alexander Graf <agraf@suse.de>,
	Juan Quintela <quintela@redhat.com>,
	qemu-devel qemu-devel <qemu-devel@nongnu.org>,
	KVM devel mailing list <kvm@vger.kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Blue Swirl <blauwirbel@gmail.com>
Subject: Re: What to do about non-qdevified devices?
Date: Wed, 30 Jan 2013 09:39:07 +0100	[thread overview]
Message-ID: <5108DC2B.2000204@suse.de> (raw)
In-Reply-To: <87pq0n887o.fsf_-_@blackfin.pond.sub.org>

Am 30.01.2013 08:02, schrieb Markus Armbruster:
> Anthony Liguori <aliguori@us.ibm.com> writes:
> 
> [...]
>> The problems I ran into were (1) this is a lot of work (2) it basically
>> requires that all bus children have been qdev/QOM-ified.  Even with
>> something like the ISA bus which is where I started, quite a few devices
>> were not qdevified still.
> 
> So what's the plan to complete the qdevification job?  Lay really low
> and quietly hope the problem goes away?  We've tried that for about
> three years, doesn't seem to work.

Stating (file) names would make that discussion much easier... ;)

I'd expect non-qdev'ified devices to rather be SysBusDevices (e.g.,
m68k, sh4, ppc). PReP's pc87312 qdev'ification was forgotten for 1.2 and
recently merged.
Would dma.c be a candidate for ISADevice? It uses isa_* API. (The stubs
in sun4m.c/sun4u.c due to use in fdc.c might be a candidate for stubs/
at least, short of an fdc.c rewrite.)

I recently went through all ISADevices and QOM'ified them:
https://lists.gnu.org/archive/html/qemu-devel/2012-11/msg02746.html

It became too late for 1.4 and I'm not quite sure where Anthony wanted
to draw the line between his 1) and 2):
https://lists.gnu.org/archive/html/qemu-devel/2013-01/msg00071.html
Thus I've only been rebasing my queue [1] without sending a v2 so far.

Lack of an official ISA maintainer for reviewing is another issue, any
volunteers? :)

Cheers,
Andreas

[1] https://github.com/afaerber/qemu-cpu/commits/realize-isa

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg

  reply	other threads:[~2013-01-30  8:39 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-29 15:41 KVM call minutes 2013-01-29 Juan Quintela
2013-01-29 16:01 ` Paolo Bonzini
2013-01-29 16:47   ` Anthony Liguori
2013-01-29 17:36     ` Paolo Bonzini
2013-01-29 20:53 ` Alexander Graf
2013-01-29 21:39   ` Anthony Liguori
2013-01-30  7:02     ` What to do about non-qdevified devices? (was: KVM call minutes 2013-01-29) Markus Armbruster
2013-01-30  8:39       ` Andreas Färber [this message]
2013-01-30 10:36       ` Peter Maydell
2013-01-30 12:35         ` What to do about non-qdevified devices? Markus Armbruster
2013-01-30 13:44           ` [Qemu-devel] " Andreas Färber
2013-01-30 16:58             ` Paolo Bonzini
2013-01-30 17:14               ` [Qemu-devel] " Andreas Färber
2013-01-31 18:48             ` Markus Armbruster
2013-01-30 14:37           ` [Qemu-devel] " Anthony Liguori
2013-01-30 11:39 ` [Qemu-devel] KVM call minutes 2013-01-29 - Port I/O Andreas Färber
2013-01-30 11:48   ` Peter Maydell
2013-01-30 12:31     ` Michael S. Tsirkin
2013-01-30 13:24       ` [Qemu-devel] " Anthony Liguori
2013-01-30 14:11         ` Michael S. Tsirkin
2013-01-30 12:32     ` Alexander Graf
2013-01-30 13:09     ` Markus Armbruster
2013-01-30 15:08       ` [Qemu-devel] " Anthony Liguori
2013-01-30 17:55     ` Andreas Färber
2013-01-30 20:20       ` Michael S. Tsirkin
2013-01-30 20:33         ` [Qemu-devel] " Andreas Färber
2013-01-30 20:55           ` Michael S. Tsirkin
2013-01-30 13:59   ` [Qemu-devel] " Anthony Liguori
2013-01-30 21:05     ` Benjamin Herrenschmidt
2013-01-30 21:39       ` [Qemu-devel] " Anthony Liguori
2013-01-30 21:54         ` Benjamin Herrenschmidt
2013-01-30 22:20         ` Michael S. Tsirkin
2013-01-30 22:32           ` Benjamin Herrenschmidt
2013-01-30 22:49             ` Michael S. Tsirkin
2013-01-30 23:02               ` Benjamin Herrenschmidt
2013-01-30 23:28                 ` Alex Williamson
2013-01-31 10:49                   ` Michael S. Tsirkin
2013-01-31 16:34                     ` Alex Williamson
2013-01-31 21:11                       ` Michael S. Tsirkin
2013-01-31 21:21                         ` Alex Williamson
2013-01-31 22:20                           ` Michael S. Tsirkin
2013-01-31 21:44                       ` Benjamin Herrenschmidt
2013-01-31 22:37                         ` Michael S. Tsirkin
2013-01-31 23:25                         ` Alex Williamson
2013-01-31 21:22                     ` Benjamin Herrenschmidt
2013-01-31 22:28                       ` Michael S. Tsirkin
2013-01-30 15:45   ` [Qemu-devel] " Gerd Hoffmann
2013-01-30 16:33     ` Anthony Liguori
2013-01-30 16:54       ` Andreas Färber
2013-01-30 17:29         ` [Qemu-devel] " Anthony Liguori
2013-01-30 20:08           ` Michael S. Tsirkin
2013-01-30 20:19             ` Peter Maydell
2013-01-30 20:19           ` [Qemu-devel] " Andreas Färber
2013-01-30 21:07         ` Benjamin Herrenschmidt
2013-01-30 21:42           ` [Qemu-devel] " Anthony Liguori
2013-01-30 17:08       ` Paolo Bonzini
2013-01-30 21:08         ` Benjamin Herrenschmidt

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