Is OVMF recommended? My host has only one IGD display device. I haven't tried OVMF. Will it replace legacy mode vfio solution in future?
Alex Williamson <alex.william...@redhat.com> 于2018年10月12日周五 下午11:56写道： > On Fri, 12 Oct 2018 23:17:17 +0800 > Acewind <acew...@gmail.com> wrote: > > > I remeber your reply here: > > https://www.mail-archive.com/vfio-users@redhat.com/msg03415.html > > You said QEMU will fix the rom with correct device id automatically when > > it's reading the rom directly from the device. > > > > In today's env, the host is already booted in legacy mode. Do I still > need > > to dump the rom and fix the device id? > > > > If I need, can I dump with these commands? > > echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom > > cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump > > echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom > > > > Those would be the correct commands, yes, but if the host is already > booting in legacy BIOS mode, I wouldn't expect that passing the ROM via > file rather than reading it from the device will make a difference. I > don't know what's wrong, sorry. Thanks, > > Alex >
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