From: Alexey Korolev <alexey.korolev@endace.com>
To: Gerd Hoffmann <kraxel@redhat.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: Wed, 14 Dec 2011 17:30:23 +1300 [thread overview]
Message-ID: <4EE8265F.2010703@endace.com> (raw)
In-Reply-To: <4EE6D234.3000203@endace.com>
Hi,
>>
>> It shouldn't be that hard to add the latter though. seabios needs two
>> more pci_region_type (PCI_REGION_TYPE_MEM_64 and
>> PCI_REGION_TYPE_PREFMEM_64) to track and map 64bit bars separately. And
>> a address space window where it can map 64bit bars to.
> Right. This is a thing I'm thinking about now. I seems that the
> specifying 0x0 address in 64bit BARS is a bad idea. At least older
> versions of Linux just hang as soon as requested range does not fit in
> first 4GB.
> So the only option would be specifying the particular address range.
> It seems this works for everything - yet.
I wonder if there any particular reason to separate prefetchable a
non-prefetchable memory regions in pciinit? Extra two more regions would
make code more complex.
Regards,
Alexey
next prev parent reply other threads:[~2011-12-14 4:31 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 [this message]
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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