From: "Robert Richter" <robert.richter@amd.com>
To: "Andi Kleen" <ak@suse.de>
Cc: "Andreas Herrmann" <andreas.herrmann3@amd.com>,
patches@x86-64.org, linux-kernel@vger.kernel.org
Subject: Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona
Date: Mon, 3 Sep 2007 16:48:42 +0200 [thread overview]
Message-ID: <20070903144842.GK7916@erda.amd.com> (raw)
In-Reply-To: <200709031448.42285.ak@suse.de>
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. For this PCI ECS CF8 access is needed. So why
not adding support for this? Excluding major parts of CPU registers
when using CF8 base access only will cause writing code to workaround
this. Not very nice to handle.
-Robert
--
AMD Saxony, Dresden, Germany
Operating System Research Center
email: robert.richter@amd.com
next prev parent reply other threads:[~2007-09-03 14:49 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070830174311.221133000@amd.com>
[not found] ` <20070830174311.536394000@amd.com>
2007-09-01 10:11 ` [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona Andi Kleen
2007-09-03 8:32 ` [patches] " Andreas Herrmann
2007-09-03 10:15 ` Andi Kleen
2007-09-03 11:27 ` Robert Richter
2007-09-03 12:48 ` Andi Kleen
2007-09-03 14:48 ` Robert Richter [this message]
2007-09-03 15:24 ` Andi Kleen
2007-09-04 6:54 ` Yinghai Lu
2007-09-04 7:20 ` Andi Kleen
2007-09-03 11:31 ` Andreas Herrmann
2007-09-03 12:52 ` Andi Kleen
[not found] ` <20070830174311.344418000@amd.com>
2007-09-01 10:14 ` [patch 1/5] x86: Add AMD64 Barcelona PMU MSR definitions Andi Kleen
2007-09-03 8:17 [patch 0/5] (resent) x86: PCI extended config space access on AMD Barcelona CPUs Robert Richter
2007-09-03 8:17 ` [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona Robert Richter
2007-09-03 8:31 ` Arjan van de Ven
2007-09-03 9:17 ` [patches] " Andreas Herrmann
2007-09-03 11:33 ` Arjan van de Ven
2007-09-03 15:47 ` Andreas Herrmann
2007-09-05 5:58 ` H. Peter Anvin
2007-09-05 8:44 ` Robert Richter
2007-09-05 10:12 ` H. Peter Anvin
2007-09-05 10:35 ` Robert Richter
2007-09-05 11:05 ` Arne Georg Gleditsch
2007-09-05 16:13 ` Andreas Herrmann
2007-09-05 22:42 ` Yinghai Lu
2007-09-06 8:31 ` Arne Georg Gleditsch
2007-09-06 9:48 ` H. Peter Anvin
2007-09-06 17:41 ` Jesse Barnes
2007-09-06 17:50 ` Yinghai Lu
2007-09-06 17:48 ` Jesse Barnes
2007-09-06 17:48 ` Yinghai Lu
2007-09-05 15:00 ` Andreas Herrmann
2007-09-06 10:14 ` Arjan van de Ven
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