linux-kernel - Re: Ordering between PCI config space writes and MMIO reads?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <adar6wxbcwt.fsf@cisco.com>
Date:	Tue, 24 Oct 2006 14:51:30 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-pci@...ey.karlin.mff.cuni.cz,
	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
	openib-general@...nib.org, John Partridge <johnip@....com>
Subject: Re: Ordering between PCI config space writes and MMIO reads?

 > I think the right way to fix this is to ensure mmio write ordering in
 > the pci_write_config_*() implementations.  Like this.

I'm happy to fix this in the PCI core and not force drivers to worry
about this.

John, can you confirm that this patch fixes the issue for you?

Thanks,
  Roland
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/