From: Alexey Korolev <alexey.korolev@endace.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: sfd@endace.com, yamahata@valinux.co.jp, seabios@seabios.org,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions
Date: Fri, 30 Dec 2011 18:10:13 +1300 [thread overview]
Message-ID: <4EFD47B5.800@endace.com> (raw)
In-Reply-To: <20111229162107.GF2300@redhat.com>
On 30/12/11 05:21, Michael S. Tsirkin wrote:
> On Thu, Dec 29, 2011 at 06:41:36PM +1300, Alexey Korolev wrote:
>>> Can't figure this out. What does this do?
>> Bios will panic if it founds prefmem BARs in both 32bit and 64bit areas.
> That's not good, it's a legal configuration.
>
To be more complete : Bios will panic if it founds prefmem BARs in both
32bit and 64bit areas
on the same secondary Bus.
I agree about that this limitation is too strict at the moment. But this
is just a limitation, there are
plenty of them in Seabios.
To answer if it is a legal or not we need to have a look how real BIOS
would behave in a such
scenario. Unfortunately I have no chance to have this configuration on
hand. If you have (may
have) this I would appreciate if you let us know how the Bios will behave?
next prev parent reply other threads:[~2011-12-30 5:10 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-28 4:41 [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations Alexey Korolev
2011-12-28 5:00 ` [Qemu-devel] [PATCH 1/3] Add new range above 4GB in _CRS table Alexey Korolev
2011-12-28 5:26 ` [Qemu-devel] [PATCH 2/3] Add a new PCI region type to supports 64 bit ranges Alexey Korolev
2011-12-28 11:30 ` Michael S. Tsirkin
2011-12-29 3:57 ` Alexey Korolev
2011-12-29 2:56 ` Kevin O'Connor
2011-12-29 5:00 ` Alexey Korolev
2011-12-30 5:57 ` Kevin O'Connor
2011-12-29 5:32 ` Alexey Korolev
2011-12-29 16:16 ` Michael S. Tsirkin
2012-01-03 15:14 ` Gerd Hoffmann
2012-01-04 3:10 ` Kevin O'Connor
2011-12-28 5:35 ` [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions Alexey Korolev
2011-12-28 6:30 ` [Qemu-devel] [SeaBIOS] " Alexey Korolev
2011-12-28 11:43 ` [Qemu-devel] " Michael S. Tsirkin
2011-12-29 5:40 ` Alexey Korolev
2011-12-29 16:18 ` Michael S. Tsirkin
2011-12-30 4:56 ` Alexey Korolev
2011-12-29 5:41 ` Alexey Korolev
2011-12-29 16:19 ` Michael S. Tsirkin
2011-12-29 16:21 ` Michael S. Tsirkin
2011-12-30 5:10 ` Alexey Korolev [this message]
2011-12-30 6:02 ` Kevin O'Connor
2011-12-30 5:10 ` Alexey Korolev
2011-12-30 6:22 ` Kevin O'Connor
2011-12-30 7:05 ` Alexey Korolev
2011-12-30 5:03 ` Kevin O'Connor
2011-12-28 11:43 ` [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations Michael S. Tsirkin
2011-12-29 9:20 ` Alexey Korolev
2011-12-29 16:21 ` Michael S. Tsirkin
2011-12-29 22:17 ` Alexey Korolev
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