From: "H. Peter Anvin" <hpa@zytor.com>
To: castet.matthieu@free.fr
Cc: Ingo Molnar <mingo@elte.hu>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
linux-security-module@vger.kernel.org,
Matthias Hopf <mhopf@suse.de>,
rjw@sisk.pl, Andrew Morton <akpm@linux-foundation.org>,
Suresh Siddha <suresh.b.siddha@intel.com>
Subject: Re: [PATCH] NX protection for kernel data : fix 32 bits S3 suspend
Date: Mon, 14 Feb 2011 13:19:43 -0800 [thread overview]
Message-ID: <4D599C6F.60600@zytor.com> (raw)
In-Reply-To: <1297108754.4d504f1281802@imp.free.fr>
On 02/07/2011 11:59 AM, castet.matthieu@free.fr wrote:
>
> For .39 I hope we could remove most of the RWX rights after init (This means
> make low memory trampoline NX or !RW).
By the way, I think this is the wrong goal. I think we should have
things enabled at their lowest permission level *as early as possible*.
The current model of tightening down permissions late in the boot is
really the wrong model.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2011-02-14 21:20 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-31 23:03 [PATCH] NX protection for kernel data : fix 32 bits S3 suspend matthieu castet
2011-02-01 8:02 ` Ingo Molnar
2011-02-01 13:25 ` castet.matthieu
2011-02-01 16:30 ` H. Peter Anvin
2011-02-02 6:26 ` Ingo Molnar
2011-02-03 22:11 ` H. Peter Anvin
2011-02-05 1:12 ` H. Peter Anvin
2011-02-05 16:46 ` castet.matthieu
2011-02-06 23:41 ` H. Peter Anvin
2011-02-07 7:40 ` Ingo Molnar
2011-02-07 19:59 ` castet.matthieu
2011-02-07 20:04 ` H. Peter Anvin
2011-02-12 16:10 ` matthieu castet
2011-02-14 20:55 ` H. Peter Anvin
2011-02-26 3:58 ` Pavel Machek
2011-02-07 20:07 ` H. Peter Anvin
2011-02-14 21:19 ` H. Peter Anvin [this message]
2011-02-14 22:50 ` Rafael J. Wysocki
2011-02-07 3:56 ` H. Peter Anvin
2011-02-07 5:16 ` H. Peter Anvin
2011-02-07 9:24 ` [tip:x86/urgent] x86, nx: Mark the ACPI resume trampoline code as +x tip-bot for H. Peter Anvin
2011-02-07 14:50 ` [tip:x86/urgent] x86, nx: Mark the ACPI resume trampoline code as +x - fixed Marc Koschewski
2011-02-07 15:04 ` Ingo Molnar
2011-02-07 13:16 ` [PATCH] NX protection for kernel data : fix 32 bits S3 suspend Matthias Hopf
[not found] <ghb2G-3tw-7@gated-at.bofh.it>
[not found] ` <ghjtg-WV-5@gated-at.bofh.it>
[not found] ` <ghosV-TN-9@gated-at.bofh.it>
[not found] ` <ghEo1-2IF-1@gated-at.bofh.it>
[not found] ` <gifGW-7eL-13@gated-at.bofh.it>
2011-02-06 10:30 ` Bodo Eggert
2011-02-06 23:32 ` H. Peter Anvin
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