On 06/02/2018 21:30, Roman Kagan wrote: > In order to leverage third-party drivers for VMBus devices in firmware > (in particular, there's a case with iPXE driver for hv-net in SeaBIOS > and OVMF), introduce an infrastructure to supply such drivers as option > ROMs. > > To make it easy for the firmware to locate such ROMs, they are stored in > fw_cfg with names "vmbus/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.rom" for > default class ROMs (where xxx... is the class GUID) and > "vmbus/dev/yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy.rom" for per-device > (i.e. specified via .romfile property) ROMs (where yyy... is the device > instance GUID). > > The format and the calling convention for the ROMs is out of scope for > this patch: QEMU doesn't try to interpret them.
Out of curiosity, do you have a SCSI driver for SeaBIOS and/or OVMF? Thanks, Paolo