From: Andi Kleen <ak@muc.de>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Non-Exec stack patches
Date: Wed, 24 Mar 2004 07:01:40 +0100 [thread overview]
Message-ID: <m3n066eqbf.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <1D3YZ-3Gl-1@gated-at.bofh.it> (Andrew Morton's message of "Wed, 24 Mar 2004 01:00:42 +0100")
Andrew Morton <akpm@osdl.org> writes:
> Which architectures are currently making their pre-page execute permissions
> depend upon VM_EXEC?
> Would additional arch patches be needed for this?
Yes, they would need some straight forward minor patches e.g. in the
32bit emulation. IA64 would be a candidate I guess.
i386 could do it on NX capable CPUs with PAE kernels (but it would require
backporting some fixes from x86-64). However currently it doesn't make
much sense because all x86 CPUs that support NX (AMD K8 currently only)
support 64bit kernels and people can as well run 64bit kernels.
Doing it on i386 would only make sense if non 64bit capable CPUs ever get
NX. I heard VIA may be planning that, but so far there is nothing in their
shipping CPUs, so I guess we can skip that for now.
-Andi
next parent reply other threads:[~2004-03-24 9:42 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1D3lO-3dh-13@gated-at.bofh.it>
[not found] ` <1D3YZ-3Gl-1@gated-at.bofh.it>
2004-03-24 6:01 ` Andi Kleen [this message]
2004-03-24 10:23 ` Non-Exec stack patches Stefan Smietanowski
2004-03-24 11:27 ` Andi Kleen
2004-03-24 22:03 ` Kurt Garloff
2004-04-14 19:14 Siddha, Suresh B
-- strict thread matches above, loose matches on Subject: below --
2004-04-14 8:45 Siddha, Suresh B
2004-04-14 9:38 ` Jamie Lokier
2004-04-14 7:28 Siddha, Suresh B
2004-04-14 8:23 ` Jamie Lokier
2004-04-14 9:47 ` Jamie Lokier
2004-04-14 18:30 ` Kurt Garloff
2004-04-14 20:54 ` Jeff Dike
[not found] <20040324002149.GT4677@tpkurt.garloff.de.suse.lists.linux.kernel>
[not found] ` <16480.55450.730214.175997@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <4060E24C.9000507@redhat.com.suse.lists.linux.kernel>
[not found] ` <16480.59229.808025.231875@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <20040324070020.GI31589@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <16481.13780.673796.20976@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <20040324072840.GK31589@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <16481.15493.591464.867776@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <4061B764.5070008@BitWagon.com.suse.lists.linux.kernel>
[not found] ` <16481.49534.124281.434663@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <20040324172454.GP31589@devserv.devel.redhat.com.suse.lists.linux.kernel>
2004-03-24 17:49 ` Andi Kleen
2004-03-24 17:54 ` Jakub Jelinek
2004-03-23 23:12 Kurt Garloff
2004-03-23 23:22 ` Ingo Molnar
2004-03-23 23:49 ` Andrew Morton
2004-03-24 0:21 ` Kurt Garloff
2004-03-24 0:38 ` David Mosberger
2004-03-24 1:20 ` Ulrich Drepper
2004-03-24 1:41 ` David Mosberger
2004-03-24 2:01 ` Ulrich Drepper
2004-03-24 7:09 ` David Mosberger
2004-03-24 7:00 ` Jakub Jelinek
2004-03-24 7:16 ` David Mosberger
2004-03-24 7:28 ` Jakub Jelinek
2004-03-24 7:45 ` David Mosberger
2004-03-24 16:29 ` John Reiser
2004-03-24 17:12 ` David Mosberger
2004-03-24 17:24 ` Jakub Jelinek
2004-03-24 18:01 ` David Mosberger
2004-03-24 19:02 ` John Reiser
2004-03-24 19:18 ` David Mosberger
2004-03-24 0:41 ` Andrew Morton
2004-03-24 0:41 ` Ingo Molnar
2004-03-24 10:53 ` Kurt Garloff
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