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From: Gerd Hoffmann <kraxel@redhat.com>
To: Kevin O'Connor <kevin@koconnor.net>
Cc: seabios@seabios.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [SeaBIOS] [seabios patch 0/5] dynamic pci i/o windows
Date: Fri, 04 May 2012 16:01:56 +0200	[thread overview]
Message-ID: <4FA3E154.7010306@redhat.com> (raw)
In-Reply-To: <20120504131833.GC668@morn.localdomain>

On 05/04/12 15:18, Kevin O'Connor wrote:
> On Fri, May 04, 2012 at 10:21:22AM +0200, Gerd Hoffmann wrote:
>>   Hi,
>>
>> This patch series makes the PCI I/O windows runtime-configurable via
>> qemu firmware config interface.  Main advantage is that we can size and
>> shuffle around the PCI i/O windows according to the amount of memory the
>> virtual machine has.  We don't need a hole for 64bit PCI bars, we can
>> just map them above the main memory.  The hole for 32bit PCI bars can be
>> enlarged for guests with less than 3.5 GB of memory.
> 
> Why pass in a PCI IO range through fw_cfg if SeaBIOS can figure out an
> acceptable range from the amount of memory in the machine?

Suggestions on how to update the pci host bridge windows in the dsdt then?

cheers,
  Gerd

  reply	other threads:[~2012-05-04 14:02 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-04  8:21 [Qemu-devel] [seabios patch 0/5] dynamic pci i/o windows Gerd Hoffmann
2012-05-04  8:21 ` [Qemu-devel] [seabios patch 1/5] pci: init all devices Gerd Hoffmann
2012-05-04 13:15   ` [Qemu-devel] [SeaBIOS] " Kevin O'Connor
2012-05-04 15:35     ` Gerd Hoffmann
2012-05-05  0:10       ` Kevin O'Connor
2012-05-12 18:16       ` Kevin O'Connor
2012-05-04  8:21 ` [Qemu-devel] [seabios patch 2/5] acpi: add qemu fwcfg driver Gerd Hoffmann
2012-05-04  8:21 ` [Qemu-devel] [seabios patch 3/5] acpi: update pci io windows according to fw_cfg info Gerd Hoffmann
2012-05-04  8:21 ` [Qemu-devel] [seabios patch 4/5] pciinit: make pci ressources configurable Gerd Hoffmann
2012-05-04  8:21 ` [Qemu-devel] [seabios patch 5/5] update src/acpi-dsdt.hex Gerd Hoffmann
2012-05-04  9:04   ` [Qemu-devel] [SeaBIOS] " Gerd Hoffmann
2012-05-04  9:24     ` Michael Tokarev
2012-05-04 13:18 ` [Qemu-devel] [SeaBIOS] [seabios patch 0/5] dynamic pci i/o windows Kevin O'Connor
2012-05-04 14:01   ` Gerd Hoffmann [this message]
2012-05-04 14:46     ` Kevin O'Connor
2012-05-04 15:37       ` Kevin O'Connor
2012-05-06  8:50         ` Gleb Natapov
2012-05-07  1:58 ` Alexey Korolev
2012-05-07  2:43   ` Kevin O'Connor

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