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
next prev parent 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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