linux-kernel - Re: [PATCH v2] PCI: Disable ASPM if BIOS asks us to

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]

Date:	Fri, 10 Dec 2010 13:07:19 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Matthew Garrett <mjg@...hat.com>
Cc:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] PCI: Disable ASPM if BIOS asks us to

On Mon,  6 Dec 2010 14:00:56 -0500
Matthew Garrett <mjg@...hat.com> wrote:

> We currently refuse to touch the ASPM registers if the BIOS tells us that
> ASPM isn't supported. This can cause problems if the BIOS has (for any
> reason) enabled ASPM on some devices anyway. Change the code such that we
> explicitly clear ASPM if the FADT indicates that ASPM isn't supported,
> and make sure we tidy up appropriately on device removal in order to deal
> with the hotplug case. If ASPM is disabled because the BIOS doesn't hand
> over control then we won't touch the registers.
> 
> Signed-off-by: Matthew Garrett <mjg@...hat.com>
> ---
> 

Applied to linux-next, thanks.

-- 
Jesse Barnes, Intel Open Source Technology Center
--
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/