From: Jeff Garzik <jgarzik@pobox.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Robert Hancock <hancockr@shaw.ca>,
Olivier Galibert <galibert@pobox.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andi Kleen <ak@suse.de>, Chuck Ebbert <cebbert@redhat.com>,
Len Brown <lenb@kernel.org>
Subject: Re: [RFC PATCH] PCI MMCONFIG: add validation against ACPI motherboard resources
Date: Wed, 23 May 2007 17:42:08 -0400 [thread overview]
Message-ID: <4654B530.2050705@pobox.com> (raw)
In-Reply-To: <200705231438.03910.jbarnes@virtuousgeek.org>
Jesse Barnes wrote:
> On Wednesday, May 23, 2007 2:35 pm Alan Cox wrote:
>>> One of the reasons why hardware vendors want to move away from
>>> traditional accesses is to be able to use the larger config space
>>> in PCI-Express, rather than being locked into the 256-byte legacy
>>> PCI config space.
>> Mostly for treacherous computing extensions where subsets of the
>> config space can only be accessed by signed machines blessed by your
>> favourite movie company and video card vendor...
>
> I hate "trusted" platform garbage as much as the next guy
> (where "trusted" means the actual user can't trust it, just the
> seller), but I think there are legitimate uses of extended space as
> well, PCIe AER uses it iirc, so don't dismiss it on those grounds. :)
Indeed. It's just a register space. Assuming one register space is
"more evil" than another, simply because it is bigger, is.. well.. silly.
Jeff
next prev parent reply other threads:[~2007-05-23 21:42 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-30 2:14 [RFC PATCH] PCI MMCONFIG: add validation against ACPI motherboard resources Robert Hancock
2007-04-30 2:59 ` Randy Dunlap
2007-04-30 22:59 ` Olivier Galibert
2007-04-30 23:26 ` Robert Hancock
2007-05-01 16:48 ` Jesse Barnes
2007-05-02 2:41 ` Jesse Barnes
2007-05-02 2:56 ` Jesse Barnes
2007-05-02 5:27 ` Jesse Barnes
2007-05-02 14:34 ` Robert Hancock
2007-05-02 17:57 ` Jesse Barnes
2007-05-02 23:45 ` Robert Hancock
2007-05-02 23:54 ` Jesse Barnes
2007-05-04 21:06 ` Jesse Barnes
2007-05-05 0:22 ` Robert Hancock
2007-05-21 19:10 ` Jesse Barnes
2007-05-21 19:26 ` Robert Hancock
2007-05-21 20:07 ` Jesse Barnes
2007-05-21 20:22 ` Jesse Barnes
2007-05-23 0:31 ` Robert Hancock
2007-05-23 0:38 ` Jesse Barnes
2007-05-23 0:53 ` Robert Hancock
2007-05-23 0:56 ` Jesse Barnes
2007-05-23 1:06 ` Robert Hancock
2007-05-23 18:52 ` Jesse Barnes
2007-05-23 20:20 ` Linus Torvalds
2007-05-23 20:38 ` Alan Cox
2007-05-23 20:45 ` Linus Torvalds
2007-05-23 20:49 ` Jesse Barnes
2007-05-23 20:56 ` Linus Torvalds
2007-05-23 21:03 ` Jesse Barnes
2007-05-23 21:09 ` Jeff Garzik
2007-05-23 21:35 ` Alan Cox
2007-05-23 21:35 ` Jeff Garzik
2007-05-23 21:37 ` Jesse Barnes
2007-05-23 21:42 ` Jeff Garzik [this message]
2007-05-23 23:07 ` Stephen Hemminger
2007-05-23 21:54 ` Linus Torvalds
2007-05-23 22:06 ` Jesse Barnes
2007-05-23 22:16 ` Linus Torvalds
2007-05-23 22:28 ` Jesse Barnes
2007-05-23 23:04 ` David Miller
2007-05-23 23:11 ` Jesse Barnes
2007-05-23 23:15 ` Robert Hancock
2007-05-23 23:21 ` Jesse Barnes
2007-05-23 21:20 ` Jesse Barnes
2007-05-23 22:24 ` Olivier Galibert
2007-05-23 22:31 ` Jesse Barnes
2007-05-23 22:48 ` Linus Torvalds
2007-05-23 22:55 ` Jesse Barnes
2007-05-24 0:21 ` Linus Torvalds
2007-05-24 2:59 ` Jesse Barnes
2007-05-24 3:18 ` Linus Torvalds
2007-05-24 3:20 ` Linus Torvalds
2007-05-24 3:40 ` Jesse Barnes
2007-05-24 5:19 ` Robert Hancock
2007-05-24 6:18 ` Jeff Garzik
2007-05-24 15:42 ` Linus Torvalds
2007-05-23 23:04 ` Robert Hancock
2007-05-23 23:04 ` Robert Hancock
2007-05-23 23:06 ` Jesse Barnes
2007-05-24 0:02 ` Jesse Barnes
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