From: Albert Cahalan <albert@users.sf.net>
To: Christoph Lameter <clameter@sgi.com>
Cc: Albert Cahalan <albert@users.sourceforge.net>,
Matt Mackall <mpm@selenic.com>, john stultz <johnstul@us.ibm.com>,
lkml <linux-kernel@vger.kernel.org>,
Tim Schmielau <tim@physik3.uni-rostock.de>,
George Anzinger <george@mvista.com>,
Ulrich Windl <ulrich.windl@rz.uni-regensburg.de>,
Dominik Brodowski <linux@dominikbrodowski.de>,
David Mosberger <davidm@hpl.hp.com>, Andi Kleen <ak@suse.de>,
paulus@samba.org, schwidefsky@de.ibm.com,
keith maanthey <kmannth@us.ibm.com>,
Patricia Gaughen <gone@us.ibm.com>,
Chris McDermott <lcm@us.ibm.com>, Max Asbock <masbock@us.ibm.com>,
mahuja@us.ibm.com, Nishanth Aravamudan <nacc@us.ibm.com>,
Darren Hart <darren@dvhart.com>,
"Darrick J. Wong" <djwong@us.ibm.com>,
Anton Blanchard <anton@samba.org>,
donf@us.ibm.com
Subject: Re: [RFC][PATCH] new timeofday core subsystem (v. A3)
Date: Tue, 15 Mar 2005 10:23:54 -0500 [thread overview]
Message-ID: <1110900235.7893.207.camel@cube> (raw)
In-Reply-To: <Pine.LNX.4.58.0503141920460.16054@schroedinger.engr.sgi.com>
On Mon, 2005-03-14 at 19:22 -0800, Christoph Lameter wrote:
> On Mon, 14 Mar 2005, Albert Cahalan wrote:
>
> > When the vsyscall page is created, copy the one needed function
> > into it. The kernel is already self-modifying in many places; this
> > is nothing new.
>
> AFAIK this will only works on ia32 and x86_64 and not definitely not
> on ia64. Who knows about the other platforms ....
I'll bet it does work fine on IA-64. If it didn't, you would
be unable to load the kernel or load an executable.
I know it works for PowerPC. You'll need an isync instruction
of course. You may also want a sync instruction and some code
to invalidate the cache.
Setting up the page content should be a 1-time operation done
at boot. Check your processor manuals as needed.
next prev parent reply other threads:[~2005-03-15 15:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-12 1:24 [RFC][PATCH] new timeofday core subsystem (v. A3) john stultz
2005-03-12 1:25 ` [RFC][PATCH] new timeofday arch specific hooks " john stultz
2005-03-12 1:26 ` [RFC][PATCH] new timeofday arch specific timesource drivers " john stultz
2005-03-12 5:52 ` [RFC][PATCH] new timeofday arch specific hooks " Benjamin Herrenschmidt
2005-03-14 18:09 ` john stultz
2005-03-15 22:59 ` Pavel Machek
2005-03-15 23:42 ` john stultz
2005-03-15 23:44 ` Pavel Machek
2005-03-16 1:44 ` john stultz
2005-03-16 10:53 ` Pavel Machek
2005-03-13 0:49 ` [RFC][PATCH] new timeofday core subsystem " Matt Mackall
2005-03-13 1:46 ` Andreas Schwab
2005-03-14 18:42 ` john stultz
2005-03-14 19:29 ` Matt Mackall
2005-03-14 19:43 ` john stultz
2005-03-14 19:51 ` Matt Mackall
2005-03-14 20:04 ` john stultz
2005-03-14 20:27 ` Matt Mackall
2005-03-15 0:01 ` Christoph Lameter
2005-03-15 2:16 ` Albert Cahalan
2005-03-15 3:22 ` Christoph Lameter
2005-03-15 15:23 ` Albert Cahalan [this message]
2005-03-15 15:52 ` Chris Friesen
2005-03-17 16:55 ` Russell King
2005-03-17 19:44 ` Albert Cahalan
2005-03-17 20:28 ` Russell King
2005-03-15 0:28 ` Christoph Lameter
2005-03-15 0:43 ` john stultz
2005-03-14 23:40 ` George Anzinger
2005-03-15 1:11 ` [topic change] jiffies as a time value john stultz
2005-03-15 23:01 ` George Anzinger
2005-03-16 3:57 ` john stultz
2005-03-15 0:07 ` [RFC][PATCH] new timeofday core subsystem (v. A3) Christoph Lameter
2005-03-15 5:37 ` Christoph Lameter
2005-03-15 18:25 ` john stultz
2005-03-15 22:08 ` George Anzinger
2005-03-17 8:15 ` Ulrich Windl
2005-03-15 6:09 ` Christoph Lameter
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