From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Avi Kivity <avi@redhat.com>,
qemu-devel@nongnu.org, mtosatti@redhat.com, kvm@vger.kernel.org,
Jan Kiszka <jan.kiszka@siemens.com>
Subject: Re: [PATCH 3/3] apic: always update the in-kernel status after loading
Date: Fri, 02 Nov 2012 16:21:23 +0100 [thread overview]
Message-ID: <5093E4F3.2060904@redhat.com> (raw)
In-Reply-To: <5093E3F2.20007@redhat.com>
Il 02/11/2012 16:17, Gerd Hoffmann ha scritto:
> On 11/02/12 16:13, Paolo Bonzini wrote:
>>> >> Hi,
>>> >>
>>>> >>> I think deferring IRQ events to the point when the complete vmstate
>>>> >>> is loaded is the cleaner and more robust approach.
>>> >>
>>> >> Agree. Just schedule a bh in post_load.
>>> >> See also a229c0535bd336efaec786dd6e352a54e0a8187d
>> >
>> > No, it cannot a bh. Right now incoming migration is blocking,
>> > but this will change in 1.3. There is no guarantee that a
>> > bottom half will run after migration has completed.
> Then we'll need some new way to do this, maybe a new post_load handler
> which is called once _all_ state is loaded.
The simplest is a vm_clock timer that expires at time 0.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
mtosatti@redhat.com, Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 3/3] apic: always update the in-kernel status after loading
Date: Fri, 02 Nov 2012 16:21:23 +0100 [thread overview]
Message-ID: <5093E4F3.2060904@redhat.com> (raw)
In-Reply-To: <5093E3F2.20007@redhat.com>
Il 02/11/2012 16:17, Gerd Hoffmann ha scritto:
> On 11/02/12 16:13, Paolo Bonzini wrote:
>>> >> Hi,
>>> >>
>>>> >>> I think deferring IRQ events to the point when the complete vmstate
>>>> >>> is loaded is the cleaner and more robust approach.
>>> >>
>>> >> Agree. Just schedule a bh in post_load.
>>> >> See also a229c0535bd336efaec786dd6e352a54e0a8187d
>> >
>> > No, it cannot a bh. Right now incoming migration is blocking,
>> > but this will change in 1.3. There is no guarantee that a
>> > bottom half will run after migration has completed.
> Then we'll need some new way to do this, maybe a new post_load handler
> which is called once _all_ state is loaded.
The simplest is a vm_clock timer that expires at time 0.
Paolo
next prev parent reply other threads:[~2012-11-02 15:21 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-30 12:16 [PATCH uq/master 0/3] Fix MSI injection at load time Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 12:16 ` [PATCH 1/3] kvm: move KVM_GET_LAPIC/KVM_SET_LAPIC to hw/kvm/apic.c Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 18:13 ` Jan Kiszka
2012-10-30 18:13 ` [Qemu-devel] " Jan Kiszka
2012-10-30 12:16 ` [PATCH 2/3] apic: add get/put methods Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 18:17 ` Jan Kiszka
2012-10-30 18:17 ` [Qemu-devel] " Jan Kiszka
2012-10-30 12:16 ` [PATCH 3/3] apic: always update the in-kernel status after loading Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 12:38 ` Avi Kivity
2012-10-30 12:38 ` [Qemu-devel] " Avi Kivity
2012-10-30 14:16 ` Paolo Bonzini
2012-10-30 14:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 18:21 ` Jan Kiszka
2012-10-30 18:21 ` [Qemu-devel] " Jan Kiszka
2012-11-02 14:53 ` Paolo Bonzini
2012-11-02 14:53 ` [Qemu-devel] " Paolo Bonzini
2012-11-02 14:59 ` Jan Kiszka
2012-11-02 14:59 ` [Qemu-devel] " Jan Kiszka
2012-11-02 15:07 ` Gerd Hoffmann
2012-11-02 15:07 ` [Qemu-devel] " Gerd Hoffmann
2012-11-02 15:13 ` Paolo Bonzini
2012-11-02 15:13 ` [Qemu-devel] " Paolo Bonzini
2012-11-02 15:17 ` Gerd Hoffmann
2012-11-02 15:17 ` [Qemu-devel] " Gerd Hoffmann
2012-11-02 15:21 ` Paolo Bonzini [this message]
2012-11-02 15:21 ` Paolo Bonzini
2012-10-30 18:17 ` Jan Kiszka
2012-10-30 18:17 ` [Qemu-devel] " Jan Kiszka
2012-10-30 12:16 ` [PATCH 4/3] ioapic: change pre_save/post_load methods to get/put Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 18:18 ` Jan Kiszka
2012-10-30 18:18 ` [Qemu-devel] " Jan Kiszka
2012-10-30 12:16 ` [PATCH 5/3] ioapic: unify reset callbacks Paolo Bonzini
2012-10-30 12:16 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 16:47 ` [PATCH uq/master 0/3] Fix MSI injection at load time Paolo Bonzini
2012-10-30 16:47 ` [Qemu-devel] " Paolo Bonzini
2012-10-30 18:22 ` Jan Kiszka
2012-10-30 18:22 ` [Qemu-devel] " Jan Kiszka
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5093E4F3.2060904@redhat.com \
--to=pbonzini@redhat.com \
--cc=avi@redhat.com \
--cc=jan.kiszka@siemens.com \
--cc=kraxel@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.