From: Andi Kleen <ak@suse.de>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Zachary Amsden <zach@vmware.com>
Subject: Re: [PATCH] Remove default_ldt, and simplify ldt-setting.
Date: Fri, 25 Aug 2006 01:15:36 +0200 [thread overview]
Message-ID: <200608250115.36879.ak@suse.de> (raw)
In-Reply-To: <44EE308B.8000304@goop.org>
On Friday 25 August 2006 01:04, Jeremy Fitzhardinge wrote:
> (This is the replacement for kill-default_ldt.patch.)
>
> Remove default_ldt, and simplify ldt-setting.
>
> This patch removes the default_ldt[] array, as it has been unused
> since iBCS stopped being supported. This means it is now possible to
> actually set an empty LDT segment.
>
> In order to deal with this, the set_ldt_desc/load_LDT pair has been
> replaced with a single set_ldt() operation which is responsible for
> both setting up the LDT descriptor in the GDT, and reloading the LDT
> register.
Looks good.
> If there are no LDT entries, the LDT register is loaded
> with a NULL descriptor.
x86-64 currently doesn't do this -- do you see an particular advantage
in it?
-Andi
next prev parent reply other threads:[~2006-08-24 23:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-24 23:04 [PATCH] Remove default_ldt, and simplify ldt-setting Jeremy Fitzhardinge
2006-08-24 23:09 ` Zachary Amsden
2006-08-24 23:15 ` Andi Kleen [this message]
2006-08-24 23:24 ` Zachary Amsden
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=200608250115.36879.ak@suse.de \
--to=ak@suse.de \
--cc=akpm@osdl.org \
--cc=jeremy@goop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=zach@vmware.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.