From: Avi Kivity <avi@redhat.com>
To: Wen Congyang <wency@cn.fujitsu.com>
Cc: Gleb Natapov <gleb@redhat.com>, kvm list <kvm@vger.kernel.org>,
Jan Kiszka <jan.kiszka@siemens.com>,
qemu-devel <qemu-devel@nongnu.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Amit Shah <amit.shah@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH 0/2 v3] kvm: notify host when guest panicked
Date: Wed, 14 Mar 2012 12:08:06 +0200 [thread overview]
Message-ID: <4F606E06.8070302@redhat.com> (raw)
In-Reply-To: <4F606D38.2070107@cn.fujitsu.com>
On 03/14/2012 12:04 PM, Wen Congyang wrote:
> >
> > This is sufficient. On the host, you can open /tmp/foo using a custom
> > program or nc (nc -U /tmp/foo). On the guest, you can just open
> > /dev/virtio-ports/port1 and read/write into it.
>
> I have two questions:
> 1. does it OK to open this device when the guest is panicked?
>
On panic, I think it's best to reset the device and drive it directly
from the panic handler.
--
error compiling committee.c: too many arguments to function
WARNING: multiple messages have this Message-ID (diff)
From: Avi Kivity <avi@redhat.com>
To: Wen Congyang <wency@cn.fujitsu.com>
Cc: Amit Shah <amit.shah@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>,
kvm list <kvm@vger.kernel.org>,
qemu-devel <qemu-devel@nongnu.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
Gleb Natapov <gleb@redhat.com>
Subject: Re: [PATCH 0/2 v3] kvm: notify host when guest panicked
Date: Wed, 14 Mar 2012 12:08:06 +0200 [thread overview]
Message-ID: <4F606E06.8070302@redhat.com> (raw)
In-Reply-To: <4F606D38.2070107@cn.fujitsu.com>
On 03/14/2012 12:04 PM, Wen Congyang wrote:
> >
> > This is sufficient. On the host, you can open /tmp/foo using a custom
> > program or nc (nc -U /tmp/foo). On the guest, you can just open
> > /dev/virtio-ports/port1 and read/write into it.
>
> I have two questions:
> 1. does it OK to open this device when the guest is panicked?
>
On panic, I think it's best to reset the device and drive it directly
from the panic handler.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-03-14 10:08 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-08 7:57 [PATCH 0/2 v3] kvm: notify host when guest panicked Wen Congyang
2012-03-08 8:02 ` [PATCH 1/2 " Wen Congyang
2012-03-08 8:04 ` [PATCH 2/2 v3] kvm: set exit_reason to KVM_EXIT_GUEST_PANICKED " Wen Congyang
2012-03-08 8:06 ` [PATCH 1/2 v3] update linux-headers Wen Congyang
2012-03-08 8:07 ` [PATCH 2/2 v3] deal with guest panicked event Wen Congyang
2012-03-08 10:08 ` Jan Kiszka
2012-03-08 10:11 ` Wen Congyang
2012-03-08 10:15 ` [RESEND][PATCH " Wen Congyang
2012-03-08 11:28 ` Avi Kivity
2012-03-08 11:36 ` Daniel P. Berrange
2012-03-08 11:52 ` Avi Kivity
2012-03-08 11:56 ` Daniel P. Berrange
2012-03-08 11:56 ` Daniel P. Berrange
2012-03-09 22:22 ` Marcelo Tosatti
2012-03-21 19:01 ` [Qemu-devel] " Anthony Liguori
2012-03-12 1:46 ` Wen Congyang
2012-03-12 1:46 ` Wen Congyang
2012-03-08 11:13 ` [PATCH 0/2 v3] kvm: notify host when guest panicked Avi Kivity
2012-03-08 11:13 ` Avi Kivity
2012-03-09 1:21 ` Wen Congyang
2012-03-09 1:21 ` Wen Congyang
2012-03-12 9:04 ` Wen Congyang
2012-03-12 10:33 ` Avi Kivity
2012-03-13 6:44 ` Wen Congyang
2012-03-13 8:54 ` Avi Kivity
2012-03-13 9:18 ` Daniel P. Berrange
2012-03-13 10:47 ` Avi Kivity
2012-03-13 10:47 ` Avi Kivity
2012-03-14 8:29 ` Wen Congyang
2012-03-14 8:29 ` Wen Congyang
2012-03-14 9:24 ` Avi Kivity
2012-03-14 9:53 ` Wen Congyang
2012-03-14 10:07 ` Avi Kivity
2012-03-14 10:26 ` Wen Congyang
2012-03-14 10:29 ` Avi Kivity
2012-03-14 10:46 ` Gleb Natapov
2012-03-14 10:48 ` Avi Kivity
2012-03-14 11:11 ` Wen Congyang
2012-03-14 11:11 ` Wen Congyang
2012-03-14 13:07 ` Avi Kivity
2012-03-14 13:13 ` Avi Kivity
2012-03-14 13:14 ` Gleb Natapov
2012-03-14 13:16 ` Avi Kivity
2012-03-14 13:25 ` Gleb Natapov
2012-03-14 18:46 ` Eric Northup
2012-03-15 7:01 ` Wen Congyang
2012-03-15 7:01 ` Wen Congyang
2012-03-15 10:39 ` Gleb Natapov
2012-03-15 11:25 ` Jan Kiszka
2012-03-15 11:46 ` Avi Kivity
2012-03-16 8:05 ` Wen Congyang
2012-03-21 19:12 ` [Qemu-devel] " Anthony Liguori
2012-03-22 8:34 ` Wen Congyang
2012-03-14 18:47 ` Eric Northup
2012-03-14 18:47 ` Eric Northup
2012-03-14 10:37 ` Amit Shah
2012-03-14 10:37 ` Amit Shah
2012-03-14 10:52 ` Wen Congyang
2012-03-14 10:52 ` Gleb Natapov
2012-03-14 10:57 ` Wen Congyang
2012-03-14 10:58 ` Gleb Natapov
2012-03-14 11:13 ` Wen Congyang
2012-03-14 11:13 ` Wen Congyang
2012-03-14 10:52 ` Avi Kivity
2012-03-14 10:58 ` Wen Congyang
2012-03-14 10:59 ` Daniel P. Berrange
2012-03-14 11:06 ` Wen Congyang
2012-03-14 11:11 ` Gleb Natapov
2012-03-14 11:17 ` Daniel P. Berrange
2012-03-14 10:59 ` Gleb Natapov
2012-03-14 10:57 ` Amit Shah
2012-03-14 9:51 ` Amit Shah
2012-03-14 10:04 ` Wen Congyang
2012-03-14 10:08 ` Avi Kivity [this message]
2012-03-14 10:08 ` Avi Kivity
2012-03-14 10:40 ` Amit Shah
2012-03-14 10:42 ` Gleb Natapov
2012-03-14 10:57 ` Daniel P. Berrange
2012-03-14 10:57 ` Daniel P. Berrange
2012-03-14 11:01 ` Wen Congyang
2012-03-14 11:01 ` Wen Congyang
2012-03-21 19:04 ` [Qemu-devel] " Anthony Liguori
2012-03-22 7:33 ` Gleb Natapov
2012-03-12 10:31 ` Avi Kivity
2012-03-19 7:33 ` Wen Congyang
2012-03-20 9:59 ` Wen Congyang
2012-03-20 15:45 ` Gleb Natapov
2012-03-21 0:56 ` Wen Congyang
2012-03-21 9:11 ` Gleb Natapov
2012-03-21 9:35 ` Wen Congyang
2012-03-21 9:35 ` Wen Congyang
2012-03-21 9:42 ` Gleb Natapov
2012-03-21 16:18 ` Corey Minyard
2012-03-21 16:24 ` Gleb Natapov
2012-03-21 16:24 ` Gleb Natapov
2012-03-21 16:25 ` Avi Kivity
2012-03-21 17:04 ` Daniel P. Berrange
2012-03-21 17:34 ` Avi Kivity
2012-03-21 18:17 ` Jan Kiszka
2012-03-21 18:17 ` Jan Kiszka
2012-03-21 19:19 ` [Qemu-devel] " Anthony Liguori
2012-03-22 1:05 ` Wen Congyang
2012-03-22 1:05 ` [Qemu-devel] " Wen Congyang
2012-03-22 7:31 ` Gleb Natapov
2012-03-22 7:44 ` Wen Congyang
2012-03-22 8:36 ` Gleb Natapov
2012-03-22 8:36 ` [Qemu-devel] " Gleb Natapov
2012-03-22 7:28 ` Gleb Natapov
2012-03-22 7:28 ` [Qemu-devel] " Gleb Natapov
2012-03-22 7:40 ` Wen Congyang
2012-04-17 3:14 ` Wen Congyang
2012-04-02 10:05 ` Wen Congyang
2012-04-02 10:54 ` Amit Shah
2012-04-02 10:54 ` Amit Shah
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