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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: pkrempa@redhat.com, lersek@redhat.com, marcel.a@redhat.com,
	libvir-list@redhat.com, Hu Tao <hutao@cn.fujitsu.com>,
	qemu-devel@nongnu.org, armbru@redhat.com, rhod@redhat.com,
	kraxel@redhat.com, anthony@codemonkey.ws, lcapitulino@redhat.com,
	afaerber@suse.de
Subject: Re: [Qemu-devel] pvpanic plans?
Date: Thu, 31 Oct 2013 18:09:53 +0100	[thread overview]
Message-ID: <52728EE1.9000701@redhat.com> (raw)
In-Reply-To: <20131031170033.GA10925@redhat.com>

Il 31/10/2013 18:00, Michael S. Tsirkin ha scritto:
> Interesting.  Why do we have
> -    { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
> then?

It's only for non-resumable states (such as pvpanic right now).

It's used here:

    if (qemu_reset_requested()) {
        pause_all_vcpus();
        cpu_synchronize_all_states();
        qemu_system_reset(VMRESET_REPORT);
        resume_all_vcpus();
        if (runstate_needs_reset()) {
            runstate_set(RUN_STATE_PAUSED);
        }
    }

Don't ask me what's happening with that resume_all_vcpus, because I have
no idea.  But I tested it now, and "system_reset" will indeed move you
from "paused (internal-error)" to "paused" with RIP=0xfffffff0.

Paolo

  reply	other threads:[~2013-10-31 17:10 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-22 16:10 [Qemu-devel] pvpanic plans? Paolo Bonzini
2013-08-22 16:44 ` Anthony Liguori
2013-08-22 17:53   ` Laszlo Ersek
2013-08-22 18:25     ` Anthony Liguori
2013-08-27  8:42       ` Richard W.M. Jones
2013-08-22 19:16     ` Paolo Bonzini
2013-08-22 20:09       ` Anthony Liguori
2013-08-22 20:36         ` Laszlo Ersek
2013-08-22 20:39           ` Anthony Liguori
2013-08-23  8:52             ` Paolo Bonzini
2013-08-22 21:08         ` Peter Maydell
2013-08-27  8:06         ` Richard W.M. Jones
2013-08-27 13:08           ` Ronen Hod
2013-08-27 13:20             ` Richard W.M. Jones
2013-08-27 13:26               ` Anthony Liguori
2013-08-27 13:57                 ` Richard W.M. Jones
2013-08-27 13:13       ` [Qemu-devel] [libvirt] " Daniel P. Berrange
2013-08-27 13:17         ` Anthony Liguori
2013-08-27 13:21         ` Richard W.M. Jones
2013-08-22 17:15 ` [Qemu-devel] " Laszlo Ersek
2013-08-22 18:33   ` Anthony Liguori
2013-08-22 19:44     ` Christian Borntraeger
2013-08-22 19:19   ` Paolo Bonzini
2013-08-22 19:41     ` Laszlo Ersek
2013-08-22 20:02       ` [Qemu-devel] [libvirt] " Eric Blake
2013-10-24  2:39 ` [Qemu-devel] " Hu Tao
2013-10-29 16:01   ` Markus Armbruster
2013-10-31 14:30   ` Michael S. Tsirkin
2013-10-31 14:32     ` Eric Blake
2013-10-31 14:34       ` Anthony Liguori
2013-10-31 14:39       ` Paolo Bonzini
2013-10-31 14:52         ` Michael S. Tsirkin
2013-10-31 14:56           ` Paolo Bonzini
2013-10-31 15:09             ` Michael S. Tsirkin
2013-10-31 15:26               ` Paolo Bonzini
2013-10-31 15:45                 ` Michael S. Tsirkin
2013-10-31 15:56                   ` Paolo Bonzini
2013-10-31 16:14                     ` Michael S. Tsirkin
2013-10-31 16:17                       ` Paolo Bonzini
2013-10-31 16:26                         ` Michael S. Tsirkin
2013-10-31 16:38                           ` Paolo Bonzini
2013-10-31 16:48                             ` Michael S. Tsirkin
2013-10-31 16:52                               ` Paolo Bonzini
2013-10-31 17:00                                 ` Michael S. Tsirkin
2013-10-31 17:09                                   ` Paolo Bonzini [this message]
2013-10-31 17:01                             ` Michael S. Tsirkin
2013-10-31 17:10                               ` Paolo Bonzini
2013-10-31 17:18                                 ` Michael S. Tsirkin
2013-10-31 18:03                                   ` Paolo Bonzini
2013-10-31 16:28                         ` Michael S. Tsirkin
2013-10-31 14:47       ` Michael S. Tsirkin
2013-10-31 14:49         ` Eric Blake
2013-10-31 15:07           ` Michael S. Tsirkin
2013-11-04  9:25     ` Christian Borntraeger

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