From: Paolo Bonzini <pbonzini@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: amit.shah@redhat.com, quintela@redhat.com, dgilbert@redhat.com,
Pavel.Dovgaluk@ispras.ru, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 09/10] piix: do not raise irq while loading vmstate
Date: Wed, 10 Sep 2014 12:07:22 +0200 [thread overview]
Message-ID: <541022DA.1000503@redhat.com> (raw)
In-Reply-To: <20140910110451.GA11512@redhat.com>
Il 10/09/2014 13:04, Michael S. Tsirkin ha scritto:
>> > This patch disables raising an irq while loading the state of PCI bridge.
>> > Because the i8259 has not been deserialized yet, raising an interrupt
>> > could bring the system out-of-sync with the migration source. For example,
>> > the migration source could have masked the interrupt in the i8259. On the
>> > destination, the i8259 device model would not know that yet and would
>> > trigger an interrupt in the CPU.
>> >
>> > This patch eliminates raising an irq and just restores the calculated
>> > state fields in post_load function. Interrupt state will be deserialized
>> > separately through the IRR field of the i8259.
> Yes, thanks!
> Except imho it's a bit better to s/raising/setting/ in the last paragraph.
And pretty much everywhere else, not just in the last paragraph.
Thanks!
Paolo
next prev parent reply other threads:[~2014-09-10 10:07 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-09 12:29 [Qemu-devel] [PATCH 00/10] x86: migrate more data Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 01/10] vl: use QLIST_FOREACH_SAFE to visit change state handlers Paolo Bonzini
2014-09-09 13:09 ` Juan Quintela
2014-09-09 12:30 ` [Qemu-devel] [PATCH 02/10] apic_common: vapic_paddr synchronization fix Paolo Bonzini
2014-09-09 13:10 ` Juan Quintela
2014-09-09 14:00 ` Michael S. Tsirkin
2014-09-09 14:26 ` Paolo Bonzini
2014-09-10 6:55 ` Pavel Dovgaluk
2014-09-09 12:30 ` [Qemu-devel] [PATCH 03/10] cpu: init vmstate for ticks and clock offset Paolo Bonzini
2014-09-09 13:25 ` Juan Quintela
2014-09-09 13:26 ` Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 04/10] pcspk: adding vmstate for save/restore Paolo Bonzini
2014-09-09 13:26 ` Juan Quintela
2014-09-09 13:28 ` Paolo Bonzini
2014-09-10 12:02 ` Michael S. Tsirkin
2014-09-10 10:59 ` Paolo Bonzini
2014-09-10 12:20 ` Michael S. Tsirkin
2014-09-10 11:24 ` Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 05/10] fdc: " Paolo Bonzini
2014-09-09 13:29 ` Juan Quintela
2014-09-09 12:30 ` [Qemu-devel] [PATCH 06/10] parallel: " Paolo Bonzini
2014-09-09 13:32 ` Juan Quintela
2014-09-09 13:40 ` Paolo Bonzini
2014-09-10 12:09 ` Michael S. Tsirkin
2014-09-10 11:16 ` Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 07/10] serial: fixing " Paolo Bonzini
2014-09-09 13:59 ` Juan Quintela
2014-09-09 16:24 ` Paolo Bonzini
2014-09-10 11:24 ` Pavel Dovgaluk
2014-09-10 10:41 ` Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 08/10] pckbd: adding new fields to vmstate Paolo Bonzini
2014-09-09 13:07 ` Juan Quintela
2014-09-10 10:14 ` Paolo Bonzini
2014-09-09 12:30 ` [Qemu-devel] [PATCH 09/10] piix: do not raise irq while loading vmstate Paolo Bonzini
2014-09-09 13:37 ` Juan Quintela
2014-09-09 13:54 ` Michael S. Tsirkin
2014-09-09 17:16 ` Paolo Bonzini
2014-09-09 20:51 ` Michael S. Tsirkin
2014-09-10 8:38 ` Paolo Bonzini
2014-09-10 8:51 ` Peter Maydell
2014-09-10 9:05 ` Paolo Bonzini
2014-09-10 10:20 ` Michael S. Tsirkin
2014-09-10 10:50 ` Michael S. Tsirkin
2014-09-10 9:58 ` Paolo Bonzini
2014-09-10 11:04 ` Michael S. Tsirkin
2014-09-10 10:07 ` Paolo Bonzini [this message]
2014-09-10 11:26 ` Michael S. Tsirkin
2014-09-09 12:30 ` [Qemu-devel] [PATCH 10/10] mc146818rtc: add missed field to vmstate Paolo Bonzini
2014-09-09 12:58 ` Juan Quintela
2014-09-10 10:50 ` [Qemu-devel] [PATCH 00/10] x86: migrate more data Paolo Bonzini
2014-09-10 11:56 ` Michael S. Tsirkin
2014-09-10 10:58 ` Paolo Bonzini
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=541022DA.1000503@redhat.com \
--to=pbonzini@redhat.com \
--cc=Pavel.Dovgaluk@ispras.ru \
--cc=amit.shah@redhat.com \
--cc=dgilbert@redhat.com \
--cc=mst@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=quintela@redhat.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).