On Mon, 28 Aug 2017 14:16:42 -0600 Gert Rosenboom <gertrosenb...@gmail.com> wrote:
> Hi, > > I have been trying to pass through both Skylake and Kaby Lake IGD on a DELL > OptiPlex Micro PC. Using the seabios monitor, I found that __callrom() in > roms/seabios/src/optionsroms.c does not return. However, the exact same > qemu configuration works fine on two other non-DELL PC motherboards with > identical Skylake and Kaby Lake processors. > > I am on kernel 4.11.1, qemu 2.10.0-rc3 and IGD is the primary and only > graphics device. > > This is my first post so I am not sure what additional information to > provide at this point. My guess would be that the host system is booted in UEFI mode, which doesn't leave a legacy BIOS option ROM available for the IGD. Solution is to boot the host system from a live CD image in CSM mode, dump the IGD ROM (see https://github.com/awilliam/rom-parser using 0000:00:02.0 as the device), save that ROM somewhere you can get to it later, then use the rom-fixer half of the above rom-parser to fix the device ID and checksum of the ROM image (make a backup first). Then use a line like <rom bar='on' file='/path/to/file.rom'/> in your XML (as documented at libvirt.org) to specify the file rather than the device. Thanks, Alex _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
