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From: Gerd Hoffmann <kraxel@redhat.com>
To: Alexey Korolev <alexey.korolev@endace.com>
Cc: sfd@endace.com, yamahata@valinux.co.jp, seabios@seabios.org,
	qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method)
Date: Thu, 01 Dec 2011 12:25:01 +0100	[thread overview]
Message-ID: <4ED7640D.5060203@redhat.com> (raw)
In-Reply-To: <4ED70E71.3030003@endace.com>

  Hi,

> Ok Here are logs the faulty device is: 00:05.0.
> In the first case the BAR1 size is 512MB and it fails in Windows (Linux
> is fine, the kernel enumerates the bus and assigns the resource above 4GB),
> In the second case the BAR1 size is 256M and works fine.

> === PCI new allocation pass #1 ===
> PCI: check devices bus 0

Hmm, with 512 MB seabios should have paniced here with:

PCI: out of address space

> PCI: map device bus 0, bfd 0x28
>   bar 0, addr febe0000, size 10000 [mem]
>   bar 1, addr 0, size 20000000 [mem]

Somehow seabios didn't recognise the bar correctly it seems (both 512
and 256 MB cases look the same).  For the 256 MB case seabios should
have mapped the bar @ 0xe0000000.

cheers,
  Gerd

  reply	other threads:[~2011-12-01 11:26 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 [this message]
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
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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