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From: Anthony Liguori <anthony@codemonkey.ws>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>,
	Lai Jiangshan <eag0628@gmail.com>,
	Jiangshan <laijs@cn.fujitsu.com>,
	kvm@vger.kernel.org, Jan Kiszka <jan.kiszka@siemens.com>,
	Markus Armbruster <armbru@redhat.com>,
	qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command
Date: Wed, 06 Apr 2011 14:34:28 -0500	[thread overview]
Message-ID: <4D9CC044.2000705@codemonkey.ws> (raw)
In-Reply-To: <BANLkTinUfnq6b2u_bfdB_zc3z8dg=4gAbA@mail.gmail.com>

On 04/06/2011 02:27 PM, Peter Maydell wrote:
>> Right, but honestly speaking, I don't know how this works for other arches.
>>
>> So, the best thing to do is to have a general design that can be used
>> by any architecture. Of course that we can also add a new command later
>> if needed.
> Well, I'm not sure "send a random interrupt to the core" makes
> much sense for ARM... So what are we actually trying to model here?
> Some sort of way to do "press a front panel switch" via remote monitor
> protocol? I guess you could have an API for boards to register any
> switches they had...

http://publib.boulder.ibm.com/infocenter/lnxinfo/v3r0m0/index.jsp?topic=/liaai/crashdump/liaaicrashdumpnmiipmi.htm

If an OS is totally hosed (spinning with interrupts disabled), and NMI 
can be used to generate a crash dump.

It's a debug feature and modelling it exactly the way we are probably 
makes sense for other architectures too.  The real semantics are 
basically force guest crash dump.

Regards,

Anthony Liguori

> -- PMM
>


WARNING: multiple messages have this Message-ID (diff)
From: Anthony Liguori <anthony@codemonkey.ws>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Lai Jiangshan <eag0628@gmail.com>,
	Jiangshan <laijs@cn.fujitsu.com>,
	kvm@vger.kernel.org, qemu-devel@nongnu.org,
	Jan Kiszka <jan.kiszka@siemens.com>,
	Markus Armbruster <armbru@redhat.com>,
	Luiz Capitulino <lcapitulino@redhat.com>,
	Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command
Date: Wed, 06 Apr 2011 14:34:28 -0500	[thread overview]
Message-ID: <4D9CC044.2000705@codemonkey.ws> (raw)
In-Reply-To: <BANLkTinUfnq6b2u_bfdB_zc3z8dg=4gAbA@mail.gmail.com>

On 04/06/2011 02:27 PM, Peter Maydell wrote:
>> Right, but honestly speaking, I don't know how this works for other arches.
>>
>> So, the best thing to do is to have a general design that can be used
>> by any architecture. Of course that we can also add a new command later
>> if needed.
> Well, I'm not sure "send a random interrupt to the core" makes
> much sense for ARM... So what are we actually trying to model here?
> Some sort of way to do "press a front panel switch" via remote monitor
> protocol? I guess you could have an API for boards to register any
> switches they had...

http://publib.boulder.ibm.com/infocenter/lnxinfo/v3r0m0/index.jsp?topic=/liaai/crashdump/liaaicrashdumpnmiipmi.htm

If an OS is totally hosed (spinning with interrupts disabled), and NMI 
can be used to generate a crash dump.

It's a debug feature and modelling it exactly the way we are probably 
makes sense for other architectures too.  The real semantics are 
basically force guest crash dump.

Regards,

Anthony Liguori

> -- PMM
>

  reply	other threads:[~2011-04-06 19:34 UTC|newest]

Thread overview: 118+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-07  9:43 [PATCH 0/2 V7] add inject-nmi qmp command Lai Jiangshan
2011-03-07  9:43 ` [Qemu-devel] " Lai Jiangshan
2011-03-07  9:45 ` [PATCH 1/2] qemu,qmp: QError: New QERR_UNSUPPORTED Lai Jiangshan
2011-03-07  9:45   ` [Qemu-devel] " Lai Jiangshan
2011-03-07  9:46 ` [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command Lai Jiangshan
2011-03-07  9:46   ` [Qemu-devel] " Lai Jiangshan
2011-04-04 10:59   ` Daniel P. Berrange
2011-04-04 10:59     ` Daniel P. Berrange
2011-04-04 12:19     ` Markus Armbruster
2011-04-04 12:19       ` Markus Armbruster
2011-04-04 13:04       ` Luiz Capitulino
2011-04-04 13:04         ` Luiz Capitulino
2011-04-04 13:09       ` Anthony Liguori
2011-04-04 13:09         ` Anthony Liguori
2011-04-04 13:34         ` Luiz Capitulino
2011-04-04 13:34           ` Luiz Capitulino
2011-04-20  1:53         ` Lai Jiangshan
2011-04-20  1:53           ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Lai Jiangshan
2011-04-20  3:02           ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Lai Jiangshan
2011-04-20  3:02             ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Lai Jiangshan
2011-04-25 15:00           ` Luiz Capitulino
2011-04-25 15:00             ` [Qemu-devel] " Luiz Capitulino
2011-04-04 12:54     ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-04 12:54       ` Avi Kivity
2011-04-04 13:05       ` Anthony Liguori
2011-04-04 13:05         ` Anthony Liguori
2011-04-06 17:47         ` Luiz Capitulino
2011-04-06 17:47           ` Luiz Capitulino
2011-04-06 18:03           ` Anthony Liguori
2011-04-06 18:03             ` Anthony Liguori
2011-04-06 18:08             ` Luiz Capitulino
2011-04-06 18:08               ` Luiz Capitulino
2011-04-06 18:17               ` Jan Kiszka
2011-04-06 18:17                 ` Jan Kiszka
2011-04-06 19:00                 ` Luiz Capitulino
2011-04-06 19:00                   ` Luiz Capitulino
2011-04-06 19:27                   ` Peter Maydell
2011-04-06 19:27                     ` Peter Maydell
2011-04-06 19:34                     ` Anthony Liguori [this message]
2011-04-06 19:34                       ` Anthony Liguori
2011-04-07  7:29                       ` Jan Kiszka
2011-04-07  7:29                         ` Jan Kiszka
2011-04-07 18:10                       ` Peter Maydell
2011-04-07 18:10                         ` Peter Maydell
2011-04-07 18:32                         ` Anthony Liguori
2011-04-07 18:32                           ` Anthony Liguori
2011-04-07 18:51                           ` Gleb Natapov
2011-04-07 18:51                             ` Gleb Natapov
2011-04-07 19:04                             ` Blue Swirl
2011-04-07 19:04                               ` Blue Swirl
2011-04-07 19:17                               ` Gleb Natapov
2011-04-07 19:17                                 ` Gleb Natapov
2011-04-07 21:41                                 ` Anthony Liguori
2011-04-07 21:41                                   ` Anthony Liguori
2011-04-08  6:04                                   ` Gleb Natapov
2011-04-08  6:04                                     ` Gleb Natapov
2011-04-08 19:17                                     ` Blue Swirl
2011-04-08 19:17                                       ` Blue Swirl
2011-04-08 19:32                                       ` Anthony Liguori
2011-04-08 19:32                                         ` Anthony Liguori
2011-04-08 20:07                                         ` Blue Swirl
2011-04-08 20:07                                           ` Blue Swirl
2011-05-03 10:01                                       ` Jamie Lokier
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
2011-04-10  8:52                                     ` Avi Kivity
2011-04-11  7:01                                     ` Markus Armbruster
2011-04-11  7:01                                       ` Markus Armbruster
2011-04-11 17:15                                       ` Blue Swirl
2011-04-11 17:15                                         ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Blue Swirl
2011-04-12  7:52                                         ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-12  7:52                                           ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Avi Kivity
2011-04-12 18:31                                           ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Blue Swirl
2011-04-12 18:31                                             ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Blue Swirl
2011-04-13 13:08                                             ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Luiz Capitulino
2011-04-13 13:08                                               ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Luiz Capitulino
2011-04-13 19:56                                               ` Blue Swirl
2011-04-13 19:56                                                 ` [Qemu-devel] " Blue Swirl
2011-04-14  6:41                                                 ` Markus Armbruster
2011-04-14  6:41                                                   ` [Qemu-devel] " Markus Armbruster
2011-04-14  9:55                                                 ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Daniel P. Berrange
2011-04-14  9:55                                                   ` [Qemu-devel] [PATCH 2/2 V7] qemu, qmp: " Daniel P. Berrange
2011-04-15 16:37                                                   ` Blue Swirl
2011-04-15 16:37                                                     ` [Qemu-devel] " 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                                 ` [PATCH 2/2 V7] qemu, qmp: " Jamie Lokier
2011-05-03  9:54                                   ` [Qemu-devel] " Jamie Lokier
2011-04-10  8:57                               ` [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: " Avi Kivity
2011-04-10  8:57                                 ` Avi Kivity
2011-04-20  6:19               ` [RFC PATCH 0/3 V8] QAPI: " Lai Jiangshan
2011-04-20  6:19                 ` [Qemu-devel] " Lai Jiangshan
2011-04-21  3:23                 ` Lai Jiangshan
2011-04-21  3:23                   ` [Qemu-devel] " Lai Jiangshan
2011-04-26 13:26                   ` Luiz Capitulino
2011-04-26 13:26                     ` [Qemu-devel] " Luiz Capitulino
2011-04-26 13:29                     ` Anthony Liguori
2011-04-26 13:29                       ` Anthony Liguori
2011-04-27  1:54                       ` Lai Jiangshan
2011-04-27  1:54                         ` Lai Jiangshan
2011-04-27 14:33                         ` Luiz Capitulino
2011-04-27 14:33                           ` Luiz Capitulino
2011-04-28  3:35                           ` [PATCH 0/2 V9] hmp,qmp: add inject-nmi Lai Jiangshan
2011-04-28  3:35                             ` [Qemu-devel] " Lai Jiangshan
2011-04-29 22:24                             ` Luiz Capitulino
2011-04-29 22:24                               ` [Qemu-devel] " Luiz Capitulino
2011-04-28  3:35                           ` [PATCH 1/2 V9] qemu,qmp: QError: New QERR_UNSUPPORTED Lai Jiangshan
2011-04-28  3:35                             ` [Qemu-devel] [PATCH 1/2 V9] qemu, qmp: " Lai Jiangshan
2011-04-28  3:35                           ` [PATCH 2/2 V9] qmp,inject-nmi: convert do_inject_nmi() to QObject Lai Jiangshan
2011-04-28  3:35                             ` [Qemu-devel] [PATCH 2/2 V9] qmp, inject-nmi: " Lai Jiangshan
2011-04-25 17:07                 ` [Qemu-devel] [RFC PATCH 0/3 V8] QAPI: add inject-nmi qmp command Michael Roth
2011-04-25 17:07                   ` Michael Roth
2011-04-20  6:19               ` [RFC PATCH 1/3 V8] QError: Introduce QERR_UNSUPPORTED Lai Jiangshan
2011-04-20  6:19                 ` [Qemu-devel] " Lai Jiangshan
2011-04-20  6:19               ` [RFC PATCH 2/3 V8] qapi,nmi: add inject-nmi qmp command Lai Jiangshan
2011-04-20  6:19                 ` [Qemu-devel] [RFC PATCH 2/3 V8] qapi, nmi: " Lai Jiangshan
2011-04-20  6:19               ` [RFC PATCH 3/3 V8] qapi-hmp: Convert HMP nmi to use QMP Lai Jiangshan
2011-04-20  6:19                 ` [Qemu-devel] " Lai Jiangshan

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