[vfio-users] Intel IGD VFIO passthrough success on i3-6100, but failed on i3-6100U

[Acewind]

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.williamson at 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 <acewind at 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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