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

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From: Allan, Bruce W
Date: Tuesday, September 30, 2008 - 8:47 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, 8:19 pm)
[RFC PATCH 01/12] x86: export set_memory_ro and set_memory_rw, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 02/12] On Tue, 23 Sep 2008, David Miller wrote:, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 05/12] e1000e: fix lockdep issues, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 06/12] e1000e: drop stats lock, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 08/12] e1000e: allow bad checksum, Jesse Brandeburg, (Mon Sep 29, 8:19 pm)
[RFC PATCH 09/12] e1000e: dump eeprom to dmesg for ich8/9, Jesse Brandeburg, (Mon Sep 29, 8:20 pm)
[RFC PATCH 12/12] update version, Jesse Brandeburg, (Mon Sep 29, 8:20 pm)
Re: [RFC PATCH 08/12] e1000e: allow bad checksum, Jiri Kosina, (Tue Sep 30, 1:38 am)
RE: [RFC PATCH 11/12] e1000e: write protect ICHx NVM to pr ..., Allan, Bruce W, (Tue Sep 30, 8:47 am)
RE: [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Brandeburg, Jesse, (Thu Oct 2, 9:27 am)
RE: [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Thomas Gleixner, (Thu Oct 2, 11:02 am)
Re: [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG, Thomas Gleixner, (Thu Oct 2, 11:58 am)
[PATCH] e1000e: prevent concurrent access to NVRAM, Thomas Gleixner, (Thu Oct 2, 4:42 pm)
Re: [PATCH] e1000e: prevent concurrent access to NVRAM, Jesse Brandeburg, (Thu Oct 2, 5:19 pm)
Re: [PATCH] e1000e: prevent concurrent access to NVRAM, Thomas Gleixner, (Thu Oct 2, 5:28 pm)