All of lore.kernel.org
 help / color / mirror / Atom feed
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: x86@kernel.org, suresh.b.siddha@intel.com,
	linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@elte.hu,
	tglx@linutronix.de
Subject: Re: [PATCH] x86, x2apic: Preserve high 32-bits of IA32_APIC_BASE MSR
Date: Tue, 12 Jul 2011 11:05:31 +0400	[thread overview]
Message-ID: <20110712070531.GD27217@sun> (raw)
In-Reply-To: <20110712055831.2498.78521.sendpatchset@nchumbalkar.americas.cpqcorp.net>

On Tue, Jul 12, 2011 at 05:59:07AM +0000, Naga Chumbalkar wrote:
> If there's no special reason to zero-out the "high" 32-bits of the IA32_APIC_BASE
> MSR, let's preserve it.
> 
> The x2APIC Specification doesn't explicitly state any such requirement. (Sec 2.2 
> in: http://www.intel.com/Assets/PDF/manual/318148.pdf).
> 
> Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
> Cc: Suresh Siddha <suresh.b.siddha@intel.com>
> 

Looks like a good idea for me. I've reviewed some additional specs
and even some updates, nothing interesting found.

Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>

  reply	other threads:[~2011-07-12  7:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-12  5:59 [PATCH] x86, x2apic: Preserve high 32-bits of IA32_APIC_BASE MSR Naga Chumbalkar
2011-07-12  7:05 ` Cyrill Gorcunov [this message]
2011-07-12 17:29 ` Suresh Siddha
2011-07-12 18:21   ` H. Peter Anvin
2011-07-12 18:36     ` Suresh Siddha
2011-07-12 18:43       ` Chumbalkar, Nagananda
2011-07-13  3:06 ` [tip:x86/apic] " tip-bot for Naga Chumbalkar

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=20110712070531.GD27217@sun \
    --to=gorcunov@gmail.com \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=nagananda.chumbalkar@hp.com \
    --cc=suresh.b.siddha@intel.com \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.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.