|
From: | Sebastian Herbszt |
Subject: | Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?) |
Date: | Tue, 15 Dec 2009 22:24:29 +0100 |
Anthony Liguori wrote:
Gerd Hoffmann wrote:I'm more worried about the CONFIG_OPTIONROMS_DEPLOYED patches for seabios, although I don't fully understand what they are doing. There are non-pci option roms (linuxboot, multiboot, extboot) which qemu will continue to deploy the way roms are deployed today.That's a good point. Need to think about how to best handle that. SeaBIOS supports up to two static option roms so maybe what we need to do is make use of that mechanism for things like linuxboot/extboot.
Keep loading custom roms (e.g. from -option-rom) with rom_add_file starting at 0xc8000. Modify SeaBIOS to scan the memory range for pre-deployed option roms before deploying PCI roms. SeaBIOS will find the last pre-deployed rom and have a starting address for deploying PCI roms. This will keep ISA option roms working. - Sebastian
[Prev in Thread] | Current Thread | [Next in Thread] |