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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] [SeaBIOS] [BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method)
Date: Tue, 13 Dec 2011 12:11:31 +0100	[thread overview]
Message-ID: <4EE732E3.4020301@redhat.com> (raw)
In-Reply-To: <4EDD98C0.6040808@endace.com>

  Hi,

>> Two possible ideas:
>> 1. Pass the value in from qemu
> Do you mean to create the 64bit region dynamically? I've tried to obtain
> RAM size somehow inside DSL code, but the ACPI spec doesn't tell how to
> do that.

There is a global variable IIRC.  You could also check the e820 table
passed in from qemu.

>> 2. Get a range toward the upper end of the memory, around 1<<40
>>
> Yes. This solution works great. And this is very simple as well. Just
> wondering if it will be good as a complete solution?

I would have tried this first too ;)

Care to share the patches so we can review & merge them?

thanks,
  Gerd

  reply	other threads:[~2011-12-13 11:12 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
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             ` Gerd Hoffmann [this message]
2011-12-14  4:31               ` [Qemu-devel] [SeaBIOS] " Alexey Korolev

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