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xen-devel
RE: [Xen-devel] [PATCH 0/3] Enable Option ROM support in Guest BIOS
> > These three patches enables Option ROM support in guest BIOS. Please
> see detailed description below.
>
> Do these changes help towards being able to boot from an emulated SCSI
> device for HVM guests? Has any thought been done about that?
The easiest way to do this would be to ask LSI whether we could
redistribute the binary blob BIOS option ROM that was originally shipped
with the 53C895A. To my knowledge, I don't think anyone has tried this
approach yet -- they may have no objections to the binary becoming part
of the xen distribution.
Writing even a simple driver for a scsi device is a bit of a pain, so if
we can't use the real option ROM, it's probably easiest to hack in a
real simple block read/write and LUN query function into the emulated
device and then write a trivial option ROM to drive it.
Anthony Liguori started something similar to this a year or two back,
but I don't believe it was finished.
Ian
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