From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, Thomas Renninger <trenn@suse.de>
Subject: Re: [PATCH] x86/PCI: parse additional host bridge window resource types
Date: Thu, 22 Apr 2010 16:17:49 -0700 [thread overview]
Message-ID: <20100422161749.5e8af128@virtuousgeek.org> (raw)
In-Reply-To: <20100420195241.13265.93577.stgit@bob.kio>
On Tue, 20 Apr 2010 13:52:41 -0600
Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
>
> This adds support for Memory24, Memory32, and Memory32Fixed descriptors in
> PCI host bridge _CRS.
>
> I experimentally determined that Windows (2008 R2) accepts these descriptors
> and treats them as windows that are forwarded to the PCI bus, e.g., if
> it finds any PCI devices with BARs outside the windows, it moves them into
> the windows.
>
> I don't know whether any machines actually use these descriptors in PCI
> host bridge _CRS methods, but if any exist and they're new enough that we
> automatically turn on "pci=use_crs", they will work with Windows but not
> with Linux.
>
> Here are the details: https://bugzilla.kernel.org/show_bug.cgi?id=15817
>
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> ---
Applied to for-linus, thanks.
--
Jesse Barnes, Intel Open Source Technology Center
prev parent reply other threads:[~2010-04-22 23:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 19:52 [PATCH] x86/PCI: parse additional host bridge window resource types Bjorn Helgaas
2010-04-22 23:17 ` Jesse Barnes [this message]
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