Re: [Qemu-devel] [PATCH - V3] Port codes from qemu-kvm to support booting from SCSI disk image

[Paul Brook]

> > Couldn't we just have an option rom for the SCSI controller? The same way
> > the VGABIOS is a rewrite of a VGA BIOS for the Cirrus Logic...
> 
> Of course we could, but it should not be extboot, but proper scsi driver.
> gpxe has src/drivers/block/scsi.c so may be it already supports qemu scsi
> device?

IIRC it only supports iSCSI.  You'd need to add the LSI HBA driver and 
possibly parallel SCSI transport bits.

In practice I'd imagine the SCSI parts to be pretty straightforward. A bios 
driver can ignore most of the fancy bits (e.g. TCQ) that a full featured OS 
driver has to worry about.

Paul