From: Paolo Bonzini <pbonzini@redhat.com>
To: Marcel Apfelbaum <marcel.a@redhat.com>
Cc: aliguori@us.ibm.com, gleb@redhat.com, mst@redhat.com,
hutao@cn.fujitsu.com, qemu-devel@nongnu.org,
Ronen Hod <rhod@redhat.com>,
kraxel@redhat.com, afaerber@suse.de, vrozenfe@redhat.com
Subject: Re: [Qemu-devel] [PATCH for-1.6 V2 0/2] pvpanic: Separate pvpanic from machine type
Date: Wed, 21 Aug 2013 10:18:23 +0200 [thread overview]
Message-ID: <521477CF.4010703@redhat.com> (raw)
In-Reply-To: <1377072197.1888.35.camel@localhost.localdomain>
Il 21/08/2013 10:03, Marcel Apfelbaum ha scritto:
> On Wed, 2013-08-14 at 10:02 +0300, Ronen Hod wrote:
>> How about adding a flag that tells QEMU whether to pause or reboot the guest
>> after the panic?
>> We cannot assume that we always have a management layer that takes care
>> of this.
>> One example is Microsoft's WHQL that deliberately generates a BSOD, and then
>> examines the dump files.
> After this patch the pvpanic is not part of the global devices anymore so just
> don't enable it if you want to reboot on BSOD.
> In my opinion "reboot after panic" equals "run without pvpanic device"
This is not entirely possible, since "reboot after panic" is a guest
setting while "run without pvpanic device" is a host setting (that the
guest administrator may not even have access to: Ronen's case is a good
example of this, because the "administrator" there is the WHQL harness).
However, I think this is a driver problem. The driver should just probe
the "reboot after panic" setting and not issue the outb to the pvpanic port.
Paolo
next prev parent reply other threads:[~2013-08-21 8:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-11 15:10 [Qemu-devel] [PATCH for-1.6 V2 0/2] pvpanic: Separate pvpanic from machine type Marcel Apfelbaum
2013-08-11 15:10 ` [Qemu-devel] [PATCH for-1.6 V2 1/2] hw/misc: don't create pvpanic device by default Marcel Apfelbaum
2013-08-12 3:06 ` Hu Tao
2013-08-12 15:59 ` Andreas Färber
2013-08-13 11:26 ` Markus Armbruster
2013-08-11 15:10 ` [Qemu-devel] [PATCH for-1.6 V2 2/2] hw/misc: make pvpanic known to user Marcel Apfelbaum
2013-08-12 3:07 ` Hu Tao
2013-08-12 15:53 ` [Qemu-devel] [PATCH for-1.6 V2 0/2] pvpanic: Separate pvpanic from machine type Eric Blake
2013-08-12 16:26 ` Marcel Apfelbaum
2013-08-14 7:02 ` Ronen Hod
2013-08-21 8:03 ` Marcel Apfelbaum
2013-08-21 8:18 ` Paolo Bonzini [this message]
2013-08-21 9:42 ` Michael S. Tsirkin
2013-08-21 9:56 ` Hu Tao
2013-08-21 9:59 ` Paolo Bonzini
2013-08-21 10:16 ` Michael S. Tsirkin
2013-08-21 10:37 ` Paolo Bonzini
2013-08-14 16:27 ` Anthony Liguori
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