From: "Michael S. Tsirkin" <mst@redhat.com>
To: Alexey Korolev <alexey.korolev@endace.com>
Cc: sfd@endace.com, yamahata@valinux.co.jp, seabios@seabios.org,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method)
Date: Thu, 1 Dec 2011 12:17:19 +0200 [thread overview]
Message-ID: <20111201101718.GA8822@redhat.com> (raw)
In-Reply-To: <4ED71582.3000107@endace.com>
On Thu, Dec 01, 2011 at 06:49:54PM +1300, Alexey Korolev wrote:
> Isaku san,
>
> I've just added you to discussion.
> There are some issues with PCI 64bit support in Windows. Windows
> fails to assign the resource if it doesn't fit in first 4GB window.
>
> I really don't know why it happens.
> One of the possibilities is related to lack of _DSM method in ACPI.
>
> Another guesse could be related to the fact that 440FX only supports
> 32bit PCI bus interface and windows may limit PCI address range to
> first 4GB for PCI devices under this bridge.
> I remember you were working on Q35 chipset simulation, I wonder if
> it is working and would it be possible to try?
>
> Thanks,
> Alexey
Maybe the range above 4G needs to be declared in the _CRS
resource?
next prev parent reply other threads:[~2011-12-01 10:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-30 1:04 [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method) Alexey Korolev
2011-11-30 7:49 ` Michael S. Tsirkin
2011-12-01 5:19 ` Alexey Korolev
2011-12-01 11:25 ` Gerd Hoffmann
2011-12-01 11:41 ` Gerd Hoffmann
2011-12-05 4:29 ` Alexey Korolev
2011-12-12 8:10 ` Gerd Hoffmann
2011-12-13 4:19 ` Alexey Korolev
2011-12-14 4:30 ` Alexey Korolev
2011-12-14 5:10 ` Kevin O'Connor
2011-12-15 8:48 ` Gerd Hoffmann
2011-12-16 4:41 ` Alexey Korolev
2011-12-16 9:23 ` Gerd Hoffmann
2011-12-01 5:49 ` Alexey Korolev
2011-12-01 10:17 ` Michael S. Tsirkin [this message]
2011-12-05 4:20 ` Alexey Korolev
2011-12-05 6:31 ` Michael S. Tsirkin
2011-12-06 4:23 ` Alexey Korolev
2011-12-13 11:11 ` [Qemu-devel] [SeaBIOS] " Gerd Hoffmann
2011-12-14 4:31 ` Alexey Korolev
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