linux-kernel - Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona

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: <200709031624.09681.ak@suse.de>
Date:	Mon, 3 Sep 2007 16:24:09 +0100
From:	Andi Kleen <ak@...e.de>
To:	"Robert Richter" <robert.richter@....com>
Cc:	"Andreas Herrmann" <andreas.herrmann3@....com>, patches@...-64.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona

On Monday 03 September 2007 15:48, Robert Richter wrote:
> Andi,
>
> On 03.09.07 14:48:41, Andi Kleen wrote:
> > > As said above, I do not see CF8 access as a workaround. I expect my
> > > system to work in the same way also if MMCONFIG is not available.
> >
> > It should boot sure, but exotic stuff not working is not a major issue
>
> It is not only about booting the system without MMCONFIG, it is also
> about using the system

There are limits on how many BIOS bug workaround (and all this
patch kit is nothing more than a elaborate BIOS bug workaround) we can do.
IMHO you're far exceeding the threshold.

Better would be to invest that energy to get the BIOSes fixed.

> . For this PCI ECS CF8 access is needed.

AER and IBS are all totally optional features and the systems
will be completely usable without them.

-Andi
-
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/