From: Avi Kivity <avi@redhat.com>
To: Chris Wright <chrisw@sous-sol.org>
Cc: Anthony Liguori <anthony@codemonkey.ws>,
Jeremy Fitzhardinge <jeremy@goop.org>,
akataria@vmware.com, Rusty Russell <rusty@rustcorp.com.au>,
Gerd Hoffmann <kraxel@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
the arch/x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Nakajima, Jun" <jun.nakajima@intel.com>,
Daniel Hecht <dhecht@vmware.com>, Zach Amsden <zach@vmware.com>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [RFC] CPUID usage for interaction between Hypervisors and Linux.
Date: Thu, 02 Oct 2008 14:29:00 +0300 [thread overview]
Message-ID: <48E4B07C.60605@redhat.com> (raw)
In-Reply-To: <20081001214338.GD634@sequoia.sous-sol.org>
Chris Wright wrote:
> * Anthony Liguori (anthony@codemonkey.ws) wrote:
>
>> And arguably, storing TSC frequency in CPUID is a terrible interface
>> because the TSC frequency can change any time a guest is entered. It
>>
>
> True for older hardware, newer hardware should fix this. I guess the
> point is, the are numbers that are easy to measure incorrectly in guest.
> Doesn't justify the whole thing..
>
It's not fixed for newer hardware. Larger systems still have multiple
tsc frequencies.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2008-10-02 11:30 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-01 17:14 [RFC] CPUID usage for interaction between Hypervisors and Linux Alok Kataria
2008-10-01 17:14 ` Alok Kataria
2008-10-01 17:21 ` H. Peter Anvin
2008-10-01 17:33 ` Alok Kataria
2008-10-01 17:33 ` Alok Kataria
2008-10-01 17:45 ` H. Peter Anvin
2008-10-01 17:45 ` H. Peter Anvin
2008-10-01 18:06 ` Jeremy Fitzhardinge
2008-10-01 18:06 ` Jeremy Fitzhardinge
2008-10-01 21:05 ` Alok Kataria
2008-10-01 21:05 ` Alok Kataria
2008-10-01 22:46 ` H. Peter Anvin
2008-10-02 1:11 ` Nakajima, Jun
2008-10-02 1:11 ` Nakajima, Jun
2008-10-02 1:24 ` H. Peter Anvin
2008-10-02 1:24 ` H. Peter Anvin
2008-10-03 22:33 ` Nakajima, Jun
2008-10-03 22:33 ` Nakajima, Jun
2008-10-03 23:30 ` H. Peter Anvin
2008-10-03 23:30 ` H. Peter Anvin
2008-10-04 0:27 ` Nakajima, Jun
2008-10-04 0:27 ` Nakajima, Jun
2008-10-04 0:27 ` Nakajima, Jun
2008-10-04 0:35 ` H. Peter Anvin
2008-10-04 0:35 ` H. Peter Anvin
2008-10-07 22:30 ` Nakajima, Jun
2008-10-07 22:30 ` Nakajima, Jun
2008-10-07 22:37 ` H. Peter Anvin
2008-10-07 23:45 ` Jeremy Fitzhardinge
2008-10-08 1:09 ` H. Peter Anvin
2008-10-08 1:09 ` H. Peter Anvin
2008-10-07 23:45 ` Jeremy Fitzhardinge
2008-10-07 22:37 ` H. Peter Anvin
2008-10-07 23:41 ` Jeremy Fitzhardinge
2008-10-07 23:41 ` Jeremy Fitzhardinge
2008-10-07 23:45 ` H. Peter Anvin
2008-10-07 23:45 ` H. Peter Anvin
2008-10-08 0:40 ` Jeremy Fitzhardinge
2008-10-08 0:40 ` Jeremy Fitzhardinge
2008-10-07 22:30 ` Nakajima, Jun
2008-10-04 8:53 ` Avi Kivity
2008-10-04 8:53 ` Avi Kivity
2008-10-03 22:33 ` Nakajima, Jun
2008-10-02 1:11 ` Nakajima, Jun
2008-10-01 22:46 ` H. Peter Anvin
2008-10-01 17:21 ` H. Peter Anvin
2008-10-01 17:47 ` H. Peter Anvin
2008-10-01 17:47 ` H. Peter Anvin
2008-10-01 18:04 ` Jeremy Fitzhardinge
2008-10-01 18:07 ` H. Peter Anvin
2008-10-01 18:07 ` H. Peter Anvin
2008-10-01 18:12 ` Jeremy Fitzhardinge
2008-10-01 18:16 ` H. Peter Anvin
2008-10-01 18:16 ` H. Peter Anvin
2008-10-01 18:36 ` Jeremy Fitzhardinge
2008-10-01 18:43 ` H. Peter Anvin
2008-10-01 18:43 ` H. Peter Anvin
2008-10-01 19:56 ` Jeremy Fitzhardinge
2008-10-01 19:56 ` Jeremy Fitzhardinge
2008-10-01 20:38 ` Chris Wright
2008-10-01 22:38 ` H. Peter Anvin
2008-10-01 22:38 ` H. Peter Anvin
2008-10-01 20:38 ` Chris Wright
2008-10-01 18:36 ` Jeremy Fitzhardinge
2008-10-01 18:12 ` Jeremy Fitzhardinge
2008-10-01 21:01 ` Alok Kataria
2008-10-01 21:08 ` Anthony Liguori
2008-10-01 21:08 ` Anthony Liguori
2008-10-01 21:15 ` Chris Wright
2008-10-01 21:15 ` Chris Wright
2008-10-01 21:31 ` Anthony Liguori
2008-10-01 21:31 ` Anthony Liguori
2008-10-01 21:23 ` Alok Kataria
2008-10-01 21:23 ` Alok Kataria
2008-10-01 21:29 ` Anthony Liguori
2008-10-01 21:29 ` Anthony Liguori
2008-10-01 21:17 ` Jeremy Fitzhardinge
2008-10-01 21:34 ` Anthony Liguori
2008-10-01 21:43 ` Chris Wright
2008-10-02 11:29 ` Avi Kivity [this message]
2008-10-02 11:29 ` Avi Kivity
2008-10-01 21:43 ` Chris Wright
2008-10-01 23:47 ` Zachary Amsden
2008-10-01 23:47 ` Zachary Amsden
2008-10-02 0:39 ` H. Peter Anvin
2008-10-02 0:39 ` H. Peter Anvin
2008-10-02 0:57 ` H. Peter Anvin
2008-10-02 0:57 ` H. Peter Anvin
2008-10-02 1:11 ` Zachary Amsden
2008-10-02 1:21 ` H. Peter Anvin
2008-10-02 1:21 ` H. Peter Anvin
2008-10-02 1:11 ` Zachary Amsden
2008-10-02 0:41 ` Anthony Liguori
2008-10-02 0:41 ` Anthony Liguori
2008-10-01 21:34 ` Anthony Liguori
2008-10-01 21:17 ` Jeremy Fitzhardinge
2008-10-01 21:01 ` Alok Kataria
2008-10-01 18:04 ` Jeremy Fitzhardinge
2008-10-01 20:03 ` Anthony Liguori
2008-10-01 20:03 ` Anthony Liguori
2008-10-01 20:08 ` Jeremy Fitzhardinge
2008-10-01 21:03 ` Anthony Liguori
2008-10-01 21:03 ` Anthony Liguori
2008-10-01 21:03 ` Anthony Liguori
2008-10-01 20:08 ` Jeremy Fitzhardinge
-- strict thread matches above, loose matches on Subject: below --
2008-10-01 17:14 Alok Kataria
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