From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>,
"sct@redhat.com" <sct@redhat.com>
Subject: Re: [PATCH 12/12] xen/mtrr: Add mtrr_if support for Xen mtrr
Date: Tue, 28 Sep 2010 11:13:00 -0700 [thread overview]
Message-ID: <4CA2302C.3000201@goop.org> (raw)
In-Reply-To: <4CA22C3C.3020209@zytor.com>
On 09/28/2010 10:56 AM, H. Peter Anvin wrote:
> On 09/28/2010 10:13 AM, Jeremy Fitzhardinge wrote:
>> Yes, we could just mask out the MTRR CPU feature and rely entirely on PAT.
>>
>> The alternative would be to use the wrmsr hooks to emulate the Intel
>> MTRR registers by mapping them to hypercalls, but that seems needlessly
>> complex.
>>
> Indeed. Relying on pure PAT is the Right Thing[TM].
Is there a plan to formally deprecate /proc/mtrr and the kernel
infrastructure behind it?
J
next prev parent reply other threads:[~2010-09-28 18:13 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 12:16 [PATCH 00/12] xen: initial domain support Stefano Stabellini
2010-09-28 12:16 ` Stefano Stabellini
2010-09-28 12:16 ` [PATCH 01/12] xen: remap GSIs as pirqs when running as initial domain stefano.stabellini
2010-09-28 12:16 ` [PATCH 02/12] xen: remap MSIs into " stefano.stabellini
2010-09-28 12:16 ` [PATCH 03/12] xen: map a dummy page for local apic and ioapic in xen_set_fixmap stefano.stabellini
2010-09-28 12:16 ` [PATCH 04/12] xen: use vcpu_ops to setup cpu masks stefano.stabellini
2010-09-28 12:16 ` [PATCH 05/12] xen: Initialize xenbus for dom0 stefano.stabellini
2010-09-28 12:16 ` [PATCH 06/12] xen: add the direct mapping area for ISA bus access stefano.stabellini
2010-09-28 12:16 ` [PATCH 07/12] xen: introduce XEN_DOM0 as a silent option stefano.stabellini
2010-09-28 12:16 ` [PATCH 08/12] xen: use host E820 map for dom0 stefano.stabellini
2010-09-28 12:16 ` [PATCH 09/12] xen: make hvc_xen console work " stefano.stabellini
2010-09-28 12:16 ` [PATCH 10/12] xen: add support for the platform_ops hypercall stefano.stabellini
2010-09-28 12:16 ` [PATCH 11/12] x86/mtrr: Extend mtrr_if to include num_var_ranges stefano.stabellini
2010-09-28 12:16 ` [PATCH 12/12] xen/mtrr: Add mtrr_if support for Xen mtrr stefano.stabellini
2010-09-28 12:39 ` Ingo Molnar
2010-09-28 12:39 ` Ingo Molnar
2010-09-28 14:00 ` Stefano Stabellini
2010-09-28 17:13 ` Jeremy Fitzhardinge
2010-09-28 17:13 ` Jeremy Fitzhardinge
2010-09-28 17:19 ` Stefano Stabellini
2010-09-28 17:19 ` Stefano Stabellini
2010-09-28 17:56 ` H. Peter Anvin
2010-09-28 18:13 ` Jeremy Fitzhardinge [this message]
2010-09-28 18:19 ` H. Peter Anvin
2010-09-28 18:19 ` H. Peter Anvin
2010-09-28 18:24 ` Jeremy Fitzhardinge
2010-09-28 18:24 ` Jeremy Fitzhardinge
2010-09-28 18:46 ` H. Peter Anvin
2010-09-28 18:46 ` H. Peter Anvin
2010-09-28 18:58 ` Jeremy Fitzhardinge
2010-09-28 19:05 ` H. Peter Anvin
2010-09-28 19:05 ` H. Peter Anvin
2010-09-28 17:14 ` Jeremy Fitzhardinge
-- strict thread matches above, loose matches on Subject: below --
2010-09-28 13:19 Sander Eikelenboom
2010-09-28 13:19 ` Sander Eikelenboom
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=4CA2302C.3000201@goop.org \
--to=jeremy@goop.org \
--cc=Jeremy.Fitzhardinge@citrix.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=sct@redhat.com \
--cc=stefano.stabellini@eu.citrix.com \
--cc=tglx@linutronix.de \
--cc=xen-devel@lists.xensource.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 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.