RE: [RFC PATCH 11/12] e1000e: write protect ICHx NVM to prevent malicious write/erase

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To: Jiri Kosina <jkosina@...>, Brandeburg, Jesse <jesse.brandeburg@...>
Cc: linux-kernel@vger.kernel.org <linux-kernel@...>, linux-netdev@vger.kernel.org <linux-netdev@...>, kkeil@suse.de <kkeil@...>, agospoda@redhat.com <agospoda@...>, arjan@linux.intel.com <arjan@...>, Graham, David <david.graham@...>, Ronciak, John <john.ronciak@...>, Thomas Gleixner <tglx@...>, chris.jones@canonical.com <chris.jones@...>, tim.gardner@intel.com <tim.gardner@...>, airlied@gmail.com <airlied@...>
Date: Tuesday, September 30, 2008 - 11:47 am

Yeah, we can do that.  I need to amend the patch a bit to prevent the protected range lock from being lifted unintentionally and will add some debug statements if/when any write/erase cycles fail.

-----Original Message-----
From: Jiri Kosina [mailto:jkosina@suse.cz]
Sent: Tuesday, September 30, 2008 5:41 AM
To: Brandeburg, Jesse
Cc: linux-kernel@vger.kernel.org; linux-netdev@vger.kernel.org; kkeil@suse.de; agospoda@redhat.com; arjan@linux.intel.com; Graham, David; Allan, Bruce W; Ronciak, John; Thomas Gleixner; chris.jones@canonical.com; tim.gardner@intel.com; airlied@gmail.com; Allan, Bruce W
Subject: Re: [RFC PATCH 11/12] e1000e: write protect ICHx NVM to prevent malicious write/erase

On Mon, 29 Sep 2008, Jesse Brandeburg wrote:


I guess there is no chance to have kernel somehow notified when
write/erase cycle is unsuccessfully tried, is it? This way, it would also
make chasing the root cause easier.

Thanks,

--
Jiri Kosina
SUSE Labs

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Messages in current thread:
[RFC PATCH 00/12] e1000e debug and protection patches, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 12/12] update version, Jesse Brandeburg, (Mon Sep 29, 11:20 pm)
[RFC PATCH 11/12] e1000e: write protect ICHx NVM to prevent ..., Jesse Brandeburg, (Mon Sep 29, 11:20 pm)
RE: [RFC PATCH 11/12] e1000e: write protect ICHx NVM to prev..., Allan, Bruce W, (Tue Sep 30, 11:47 am)
[RFC PATCH 09/12] e1000e: dump eeprom to dmesg for ich8/9, Jesse Brandeburg, (Mon Sep 29, 11:20 pm)
[RFC PATCH 08/12] e1000e: allow bad checksum, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
Re: [RFC PATCH 08/12] e1000e: allow bad checksum, Jiri Kosina, (Tue Sep 30, 4:38 am)
[RFC PATCH 10/12] e1000e: Use set_memory_ro()/set_memory_rw(..., Jesse Brandeburg, (Mon Sep 29, 11:20 pm)
[RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[PATCH] e1000e: prevent concurrent access to NVRAM, Thomas Gleixner, (Thu Oct 2, 7:42 pm)
Re: [PATCH] e1000e: prevent concurrent access to NVRAM, Jesse Brandeburg, (Thu Oct 2, 8:19 pm)
Re: [PATCH] e1000e: prevent concurrent access to NVRAM, Thomas Gleixner, (Thu Oct 2, 8:28 pm)
RE: [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Brandeburg, Jesse, (Thu Oct 2, 12:27 pm)
[RFC PATCH 06/12] e1000e: drop stats lock, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 05/12] e1000e: fix lockdep issues, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 04/12] e1000e: do not ever sleep in interrupt con..., Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 03/12] e1000e: reset swflag after resetting hardw..., Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 01/12] x86: export set_memory_ro and set_memory_rw, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)
[RFC PATCH 02/12] On Tue, 23 Sep 2008, David Miller wrote:, Jesse Brandeburg, (Mon Sep 29, 11:19 pm)