From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: Re: [PATCH 1/2] PCI: Prevent bus conflicts while checking for bridge apertures
Date: Mon, 9 Dec 2013 13:15:37 -0700 [thread overview]
Message-ID: <20131209201537.GJ5429@obsidianresearch.com> (raw)
In-Reply-To: <CAErSpo5ab6buYa9GvpYECeeCwhYATt6dVePD6Cov-75kQndf4g@mail.gmail.com>
On Mon, Dec 09, 2013 at 01:00:36PM -0700, Bjorn Helgaas wrote:
> I don't think it's 100% spec compliant because the spec allows
> PCI_COMMAND_IO to be set if the bridge has an enabled I/O BAR but does
> not support an I/O aperture. I admit I have never seen such a device,
> and I doubt one exists :)
Yes, fair enough!
Jason
next prev parent reply other threads:[~2013-12-09 20:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-06 0:19 [PATCH 0/2] Bridge window discovery and setup fixes Bjorn Helgaas
2013-12-06 0:19 ` [PATCH 1/2] PCI: Prevent bus conflicts while checking for bridge apertures Bjorn Helgaas
2013-12-09 19:31 ` Jason Gunthorpe
2013-12-09 20:00 ` Bjorn Helgaas
2013-12-09 20:15 ` Jason Gunthorpe [this message]
2013-12-06 0:19 ` [PATCH 2/2] PCI: Stop clearing bridge Secondary Status when setting up I/O aperture Bjorn Helgaas
2013-12-09 19:33 ` Jason Gunthorpe
2013-12-09 20:15 ` Bjorn Helgaas
2013-12-09 21:27 ` Jason Gunthorpe
2013-12-09 21:58 ` Bjorn Helgaas
2013-12-10 0:10 ` Jason Gunthorpe
2013-12-10 0:18 ` Bjorn Helgaas
2013-12-10 1:31 ` Jason Gunthorpe
2013-12-10 18:22 ` Bjorn Helgaas
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