From: Luiz Capitulino <lcapitulino@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Lai Jiangshan <eag0628@gmail.com>,
Jiangshan <laijs@cn.fujitsu.com>,
kvm@vger.kernel.org, Markus Armbruster <armbru@redhat.com>,
qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>,
Lai@gnu.org
Subject: Re: [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command
Date: Wed, 6 Apr 2011 14:47:23 -0300 [thread overview]
Message-ID: <20110406144723.45333682@doriath> (raw)
In-Reply-To: <4D99C22C.4070401@codemonkey.ws>
On Mon, 04 Apr 2011 08:05:48 -0500
Anthony Liguori <anthony@codemonkey.ws> wrote:
> On 04/04/2011 07:54 AM, Avi Kivity wrote:
> > On 04/04/2011 01:59 PM, Daniel P. Berrange wrote:
> >> Interesting that with HMP you need to specify a single CPU index, but
> >> with QMP it is injecting to all CPUs at once. Is there any compelling
> >> reason why we'd ever need the ability to only inject to a single CPU
> >> from an app developer POV ?
> >
> > When a PC has an NMI button, it is (I presume) connected to all CPUs'
> > LINT1 pin, which is often configured as an NMI input. So the all-cpu
> > variant corresponds to real hardware, while the single-cpu variant
> > doesn't.
> >
> > wrt the app developer POV, the only use I'm aware of is that you can
> > configure Windows to dump core when the NMI button is pressed and thus
> > debug driver problems. It's likely more reliable when sent to all cpus.
>
> It either needs to be removed from HMP or added to QMP. HMP shouldn't
> have more features than QMP (even if those features are non-sensible).
Is anyone against changing HMP behavior to send it to all CPUs?
next prev parent reply other threads:[~2011-04-06 17:47 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-07 9:43 [Qemu-devel] [PATCH 0/2 V7] add inject-nmi qmp command Lai Jiangshan
2011-03-07 9:45 ` [Qemu-devel] [PATCH 1/2] qemu,qmp: QError: New QERR_UNSUPPORTED Lai Jiangshan
2011-03-07 9:46 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command Lai Jiangshan
2011-04-04 10:59 ` Daniel P. Berrange
2011-04-04 12:19 ` Markus Armbruster
2011-04-04 13:04 ` Luiz Capitulino
2011-04-04 13:09 ` Anthony Liguori
2011-04-04 13:34 ` Luiz Capitulino
2011-04-20 1:53 ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Lai Jiangshan
2011-04-20 3:02 ` Lai Jiangshan
2011-04-25 15:00 ` Luiz Capitulino
2011-04-04 12:54 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-04 13:05 ` Anthony Liguori
2011-04-06 17:47 ` Luiz Capitulino [this message]
2011-04-06 18:03 ` Anthony Liguori
2011-04-06 18:08 ` Luiz Capitulino
2011-04-06 18:17 ` Jan Kiszka
2011-04-06 19:00 ` Luiz Capitulino
2011-04-06 19:27 ` Peter Maydell
2011-04-06 19:34 ` Anthony Liguori
2011-04-07 7:29 ` Jan Kiszka
2011-04-07 18:10 ` Peter Maydell
2011-04-07 18:32 ` Anthony Liguori
2011-04-07 18:51 ` Gleb Natapov
2011-04-07 19:04 ` Blue Swirl
2011-04-07 19:17 ` Gleb Natapov
2011-04-07 21:41 ` Anthony Liguori
2011-04-08 6:04 ` Gleb Natapov
2011-04-08 19:17 ` Blue Swirl
2011-04-08 19:32 ` Anthony Liguori
2011-04-08 20:07 ` Blue Swirl
2011-05-03 10:01 ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Jamie Lokier
2011-04-10 8:52 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-11 7:01 ` Markus Armbruster
2011-04-11 17:15 ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Blue Swirl
2011-04-12 7:52 ` Avi Kivity
2011-04-12 18:31 ` Blue Swirl
2011-04-13 13:08 ` Luiz Capitulino
2011-04-13 19:56 ` Blue Swirl
2011-04-14 6:41 ` Markus Armbruster
2011-04-14 9:55 ` Daniel P. Berrange
2011-04-15 16:37 ` Blue Swirl
2011-04-07 21:39 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Anthony Liguori
2011-04-08 5:54 ` Gleb Natapov
2011-05-03 9:54 ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Jamie Lokier
2011-04-10 8:57 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-20 6:19 ` [Qemu-devel] [RFC PATCH 0/3 V8] QAPI: " Lai Jiangshan
2011-04-21 3:23 ` Lai Jiangshan
2011-04-26 13:26 ` Luiz Capitulino
2011-04-26 13:29 ` Anthony Liguori
2011-04-27 1:54 ` Lai Jiangshan
2011-04-27 14:33 ` Luiz Capitulino
2011-04-28 3:35 ` [Qemu-devel] [PATCH 0/2 V9] hmp,qmp: add inject-nmi Lai Jiangshan
2011-04-29 22:24 ` Luiz Capitulino
2011-04-28 3:35 ` [Qemu-devel] [PATCH 1/2 V9] qemu, qmp: QError: New QERR_UNSUPPORTED Lai Jiangshan
2011-04-28 3:35 ` [Qemu-devel] [PATCH 2/2 V9] qmp, inject-nmi: convert do_inject_nmi() to QObject Lai Jiangshan
2011-04-25 17:07 ` [Qemu-devel] [RFC PATCH 0/3 V8] QAPI: add inject-nmi qmp command Michael Roth
2011-04-20 6:19 ` [Qemu-devel] [RFC PATCH 1/3 V8] QError: Introduce QERR_UNSUPPORTED Lai Jiangshan
2011-04-20 6:19 ` [Qemu-devel] [RFC PATCH 2/3 V8] qapi, nmi: add inject-nmi qmp command Lai Jiangshan
2011-04-20 6:19 ` [Qemu-devel] [RFC PATCH 3/3 V8] qapi-hmp: Convert HMP nmi to use QMP Lai Jiangshan
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