On Mon, Oct 12, 2009 at 04:50:35PM +0200, Gerd Hoffmann wrote: > On 10/12/09 15:53, Gleb Natapov wrote: > >On Mon, Oct 12, 2009 at 03:45:47PM +0200, Gerd Hoffmann wrote: > >>>>>>We should fix qemu to re-read bios from flash. > >>>>>>Makes sense? > >>>>>> > >>>>>We have option_rom_setup_reset() already. > >>>> > >>>>We don't, anymore :) > >>>We are fast! Well, we surely have something similar instead. > >> > >>Sure. Try 'info roms'. Everything listed there will be reloaded on > >>reset (unless mem=rom, in which case the guest should not be able to > >>modify the bits in the first place). That includes vgabios, > >>optionroms, -kernel images, ... > >> > >And what about bios? I don't see it there. > > pc.c does some magic here to map the complete bios into high memory > and the legacy part at 0xe0000, thats why it is loaded in a > different way. It gets loaded to IO_MEM_ROM memory though, so the > guest should not be able to corrupt it. > But KVM doesn't support it (memory is always writable). And we want to reload BIOS on reboot for migration purposes. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
