linux-kernel - Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue

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Message-ID:  <mj+md-20071225.091827.22368.nikam@ucw.cz>
Date:	Tue, 25 Dec 2007 10:22:35 +0100
From:	Martin Mares <mj@....cz>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, gregkh@...e.de,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue

Hello!

> (and yes I realize this needs lspci to be expanded some to set the
> flag if the admin really asks for it, but such is life)

Reading past the first 256 bytes of the sysfs file should be enough
-- only root can do that (other users get only 64 bytes anyway) and
problems with reading random registers have hopefully taught programs
not to read blindly a long time ago.

				Have a nice fortnight
-- 
Martin `MJ' Mares                          <mj@....cz>   http://mj.ucw.cz/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
Never make any mistaeks.
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