qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Blue Swirl <blauwirbel@gmail.com>,
	Paul Brook <paul@codesourcery.com>,
	Gleb Natapov <gleb@redhat.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Re: [Bug 599958] Re: Timedrift problems with Win7: hpet missing time drift fixups
Date: Mon, 05 Jul 2010 11:47:44 +0300	[thread overview]
Message-ID: <4C319C30.30308@redhat.com> (raw)
In-Reply-To: <4C318B74.3040403@web.de>

On 07/05/2010 10:36 AM, Jan Kiszka wrote:
>
>> Assumes that CPU with
>> lowest index is BSP (that one we can actually guaranty if we want
>> to).
>>      
> Well, the generic solution would be returning a bitmap of the CPUs that
> were affected, but this is impractical. However, at least x86 should be
> fine with the information "state change also on BSP", e.g. like this:
>   0 - state change on one or more CPUs, none of them is the BSP
>   1 - state change on BSP (and possible more CPUs)
>    

What about ack notifiers?  Ask the APIC to notify you when an interrupt 
is acked.  That allows you to track the BSP, all cpus, or some subset.  
Masking can be seen at the irq controller level.

It's more involved, but provides more information.



-- 
error compiling committee.c: too many arguments to function

  reply	other threads:[~2010-07-05  8:47 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-29 21:18 [Qemu-devel] [Bug 599958] [NEW] Timedrift problems with Win7 + qemu-kvm Lucas Meneghel Rodrigues
2010-06-29 21:18 ` [Qemu-devel] [Bug 599958] " Lucas Meneghel Rodrigues
2010-06-29 21:18 ` Lucas Meneghel Rodrigues
2010-06-29 21:19 ` Lucas Meneghel Rodrigues
2010-06-29 21:45 ` Anthony Liguori
2010-06-29 21:53 ` Lucas Meneghel Rodrigues
2010-06-30 14:17 ` Lucas Meneghel Rodrigues
2010-06-30 14:38 ` [Qemu-devel] [Bug 599958] Re: Timedrift problems with Win7: hpet missing time drift fixups Anthony Liguori
2010-07-01  7:13   ` [Qemu-devel] " Jan Kiszka
2010-07-01  8:19     ` Gleb Natapov
2010-07-01 15:45       ` Paul Brook
2010-07-01 18:50         ` Anthony Liguori
2010-07-01 21:40           ` Paul Brook
2010-07-03  7:39             ` Jan Kiszka
2010-07-03  7:49               ` Blue Swirl
2010-07-03  7:55                 ` Jan Kiszka
2010-07-04 22:06                   ` Paul Brook
2010-07-05  6:39                     ` Jan Kiszka
2010-07-05  6:42                       ` Gleb Natapov
2010-07-05  6:49                         ` Jan Kiszka
2010-07-05  7:00                           ` Gleb Natapov
2010-07-05  7:36                             ` Jan Kiszka
2010-07-05  8:47                               ` Avi Kivity [this message]
2010-07-05  9:07                                 ` Jan Kiszka
2010-07-05  9:09                                   ` Gleb Natapov
2010-07-05  9:23                                   ` Avi Kivity
2010-07-05 11:13                                     ` Jan Kiszka
2010-07-05 11:40                                       ` Avi Kivity
2010-07-05 12:16                                         ` Jan Kiszka
2010-07-05 12:20                                           ` Gleb Natapov
2010-07-05 13:24                                             ` Jan Kiszka
2010-07-05 13:42                                               ` Avi Kivity
2010-07-05 13:44                                                 ` Gleb Natapov
2010-07-05 12:23                                           ` Avi Kivity
2010-07-05 13:28                                             ` Jan Kiszka
2010-07-05 13:47                                               ` Avi Kivity
2010-07-05 17:12                                                 ` Blue Swirl
2010-07-05 17:32                                                   ` Jan Kiszka
2010-07-05 17:45                                                   ` Avi Kivity
2010-07-01 18:42     ` Anthony Liguori
2010-06-30 15:40 ` [Qemu-devel] " Lucas Meneghel Rodrigues
2013-10-01  9:34 ` Ben A
2013-10-01 15:56   ` Gleb Natapov
2013-10-01 16:23     ` Ben "Root" Anderson
2013-10-01 16:33       ` Gleb Natapov
2013-10-01 16:36         ` Ben "Root" Anderson
2013-10-01 16:47           ` Gleb Natapov
2013-10-01  9:35 ` Ben A
2014-06-15 23:31 ` AndCycle
2019-05-22  7:27 ` Thomas Huth
2019-05-24 14:58 ` Lucas Meneghel Rodrigues
2019-07-24  4:17 ` Launchpad Bug Tracker

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=4C319C30.30308@redhat.com \
    --to=avi@redhat.com \
    --cc=blauwirbel@gmail.com \
    --cc=gleb@redhat.com \
    --cc=jan.kiszka@web.de \
    --cc=paul@codesourcery.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 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).