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Date: Thu, 7 Apr 2011 19:10:39 +0100
Message-ID: <BANLkTim4iP_YRjOCYH986BB=ec-dwcjfQA@mail.gmail.com>
Subject: Re: [Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command
From: Peter Maydell <peter.maydell@linaro.org>
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To: Anthony Liguori <anthony@codemonkey.ws>
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>

On 6 April 2011 20:34, Anthony Liguori <anthony@codemonkey.ws> wrote:
> http://publib.boulder.ibm.com/infocenter/lnxinfo/v3r0m0/index.jsp?topic=
=3D/liaai/crashdump/liaaicrashdumpnmiipmi.htm
>
> If an OS is totally hosed (spinning with interrupts disabled), and NMI ca=
n
> be used to generate a crash dump.
>
> It's a debug feature and modelling it exactly the way we are probably mak=
es
> sense for other architectures too. =C2=A0The real semantics are basically=
 force
> guest crash dump.

Ah, right. (There isn't really an equivalent to this on ARM since
we don't have a real NMI equivalent. So any implementation for ARM
qemu would be board dependent since you could wire a watchdog up to
any interrupt.)

Should we try to pick a command name that says what it's supposed to
do rather than how it happens to be implemented on x86 ?

-- PMM