From: Ingo Molnar <mingo@elte.hu>
To: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
Yinghai Lu <yinghai@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
shai@scalex86.org
Subject: Re: [PATCH] x86: don't compile vsmp_64 for 32bit
Date: Thu, 26 Mar 2009 10:11:53 +0100 [thread overview]
Message-ID: <20090326091153.GB9369@elte.hu> (raw)
In-Reply-To: <20090326003154.GA10614@localdomain>
* Ravikiran G Thirumalai <kiran@scalex86.org> wrote:
> > unsynchronized_tsc() just returns a guess anyway, and if you
> > don't have X86_FEATURE_CONSTANT_TSC set, then it will return
> > unstable for your hardware anyway, even without the
> > is_vsmp_box() test.
>
> Unfortunately we use hardware which has X86_FEATURE_CONSTANT_TSC.
>
> >
> > Failing that, you could add yourself to bad_tsc_dmi_table[] and
> > have that mark the tsc as unstable (you have DMI, right?).
> >
>
> Newer versions of the VMM does, but older ones don't :(, and
> obviously we have older versions out in the field that still needs
> to be supported.
But those old versions wont have X86_FEATURE_CONSTANT_TSC set,
right?
Ingo
next prev parent reply other threads:[~2009-03-26 9:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-26 5:20 Yinghai Lu
2009-02-26 5:40 ` Ingo Molnar
2009-02-26 6:48 ` Ravikiran G Thirumalai
2009-02-26 8:39 ` Yinghai Lu
2009-02-26 11:44 ` Ingo Molnar
2009-02-27 0:17 ` Ravikiran G Thirumalai
2009-02-28 9:44 ` Ingo Molnar
2009-03-02 23:51 ` Ravikiran G Thirumalai
2009-03-03 0:08 ` Yinghai Lu
2009-03-22 12:48 ` Ingo Molnar
2009-03-24 6:14 ` Ravikiran G Thirumalai
2009-03-24 9:10 ` Ingo Molnar
2009-03-25 18:51 ` Ravikiran G Thirumalai
2009-03-25 22:16 ` Jeremy Fitzhardinge
2009-03-25 22:36 ` Ravikiran G Thirumalai
2009-03-25 23:15 ` Jeremy Fitzhardinge
2009-03-25 23:29 ` Ravikiran G Thirumalai
2009-03-25 23:36 ` Thomas Gleixner
2009-03-26 0:11 ` Ravikiran G Thirumalai
2009-03-25 23:58 ` Jeremy Fitzhardinge
2009-03-26 0:31 ` Ravikiran G Thirumalai
2009-03-26 9:11 ` Ingo Molnar [this message]
2009-03-26 18:17 ` Ravikiran G Thirumalai
2009-03-26 7:57 ` [tip:x86/apic] Revert "x86: don't compile vsmp_64 for 32bit" Ravikiran G Thirumalai
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