From: David Miller <davem@davemloft.net>
To: jbarnes@virtuousgeek.org
Cc: torvalds@linux-foundation.org, arjan@infradead.org,
hancockr@shaw.ca, greg@kroah.com, akpm@linux-foundation.org,
ak@suse.de, rajesh.shah@intel.com, linux-kernel@vger.kernel.org
Subject: Re: pci-disable-decode-of-io-memory-during-bar-sizing.patch
Date: Tue, 30 Oct 2007 15:44:51 -0700 (PDT) [thread overview]
Message-ID: <20071030.154451.128207404.davem@davemloft.net> (raw)
In-Reply-To: <200710301531.58957.jbarnes@virtuousgeek.org>
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Tue, 30 Oct 2007 15:31:57 -0700
> I don't disagree there. I'm just saying the actual mechanism is fine
> (as illustrated by the numerous non-PC ports of Linux), and this
> particular problem, at least, isn't really specific to how MMCONFIG is
> described or configured by the firmware and OS, it's simply a Linux
> problem.
I totally disagree, it is not a Linux problem.
The non-PC ports don't have this issue because the PCI config space
MMIO area of the PCI controller does not overlap PCI MMIO space at
all. So the problem simply cannot happen.
They choose to put this MMCONFIG in an area overlapping with PCI MMIO
space, which breaks both existing practice and code.
next prev parent reply other threads:[~2007-10-30 22:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200708151919.l7FJJfUE010966@imap1.linux-foundation.org>
2007-10-25 23:20 ` - mmconfig-validate-against-acpi-motherboard-resources.patch removed from -mm tree Robert Hancock
2007-10-25 23:22 ` Jesse Barnes
2007-10-26 2:54 ` Greg KH
2007-10-26 5:03 ` Robert Hancock
2007-10-26 5:27 ` Greg KH
2007-10-26 16:58 ` Jesse Barnes
2007-10-26 16:59 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Jesse Barnes
2007-10-27 2:41 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Greg KH
2007-10-29 23:52 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Robert Hancock
2007-10-30 15:15 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 16:47 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Arjan van de Ven
2007-10-30 17:07 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 17:28 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Arjan van de Ven
2007-10-30 17:43 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-11-01 8:31 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Martin Mares
2007-11-01 14:08 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Arjan van de Ven
2007-11-08 13:50 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Martin Mares
2007-10-30 22:04 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Jesse Barnes
2007-10-30 22:22 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 22:31 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Jesse Barnes
2007-10-30 22:44 ` David Miller [this message]
2007-10-30 22:48 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 22:38 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 22:39 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Jesse Barnes
2007-10-30 23:30 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Andi Kleen
2007-10-30 23:41 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Robert Hancock
2007-10-30 23:52 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Arjan van de Ven
2007-10-31 0:02 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 23:59 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-31 0:23 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Robert Hancock
2007-10-31 1:30 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Jesse Barnes
2007-10-30 18:50 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Andi Kleen
2007-10-30 19:06 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Linus Torvalds
2007-10-30 19:37 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch Andi Kleen
2007-10-30 21:41 ` pci-disable-decode-of-io-memory-during-bar-sizing.patch David Miller
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