qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [SeaBIOS] [seabios patch 0/5] dynamic pci i/o windows


From: Kevin O'Connor
Subject: Re: [Qemu-devel] [SeaBIOS] [seabios patch 0/5] dynamic pci i/o windows
Date: Fri, 4 May 2012 09:18:33 -0400
User-agent: Mutt/1.5.21 (2010-09-15)

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?

-Kevin



reply via email to

[Prev in Thread] Current Thread [Next in Thread]