From: "Michael S. Tsirkin" <mst@redhat.com>
To: Alexey Korolev <alexey.korolev@endace.com>
Cc: sfd@endace.com, yamahata@valinux.co.jp, seabios@seabios.org,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations
Date: Wed, 28 Dec 2011 13:43:29 +0200 [thread overview]
Message-ID: <20111228114329.GC26310@redhat.com> (raw)
In-Reply-To: <4EFA9DF0.7050902@endace.com>
On Wed, Dec 28, 2011 at 05:41:20PM +1300, Alexey Korolev wrote:
> Hi,
>
> There were a number of requests about support of 64bit PCI BAR allocations.
>
> Also we have observed the issue on guests with older linux version
> (2.6.18): if we
> have a 64bit BAR allocated within first 4GB, the OS may hang during
> start process.
> (I guess it is an OS bug, but we need to take care of this).
>
> This patch addresses these two issues and allows 64bit BARs to be
> allocated in ranges
> above 4GB.
> Patch consists of three parts:
> 1. Add new range above 4GB in _CRS table to let Windows 2008 work
> properly. Thanks
> a lot to Michael S. Triskin for this brilliant idea.
> 2. Added new PCI_REGION_TYPE_PREFMEM_64 region type in pciinit and changed
> types of variables.
> 3. Take care about PCI devices with 64bit BARs on secondary buses.
>
> Patches have been tested on several configurations which includes
> linux 2.6.18 - 3.0 &
> windows 2008. Everything works quite well.
Which qemu version did you use?
next prev parent reply other threads:[~2011-12-28 11:42 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
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 ` Michael S. Tsirkin [this message]
2011-12-29 9:20 ` [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations Alexey Korolev
2011-12-29 16:21 ` Michael S. Tsirkin
2011-12-29 22:17 ` Alexey Korolev
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