From: Alexey Korolev <alexey.korolev@endace.com>
To: seabios@seabios.org, qemu-devel@nongnu.org, sfd@endace.com
Cc: mst@redhat.com
Subject: [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method)
Date: Wed, 30 Nov 2011 14:04:08 +1300 [thread overview]
Message-ID: <4ED58108.3090903@endace.com> (raw)
Hi,
We have got some issues with 64bit PCI devices support under Windows guests.
Windows fails to start any PCI devices with 64bit BARs when size exceeds
512MB with error code 12 (can't allocate resources). In other words it
fails when the PCI memory region is located above 4GB.
I tried to investigate this problem and found document from Microsoft:
http://msdn.microsoft.com/en-us/windows/hardware/gg462986
It states that the _DSM method must be implemented to support devices
above 4GB.
Unfortunately I'm not familiar with ACPI code of seabios, so can't
implement the _DSM method. May be you have other ideas what needs to be
done to fix it? Any help is appreciated.
Thanks,
Alexey
next reply other threads:[~2011-11-30 1:04 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-30 1:04 Alexey Korolev [this message]
2011-11-30 7:49 ` [Qemu-devel] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method) 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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4ED58108.3090903@endace.com \
--to=alexey.korolev@endace.com \
--cc=mst@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=seabios@seabios.org \
--cc=sfd@endace.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).