Re: [Qemu-devel] [RFC] Writeable files in fw_cfg

[David Woodhouse]

On Mon, 2013-01-28 at 10:10 -0600, Anthony Liguori wrote:
> > Mostly because flash devices don't actually *work* with KVM.
> 
> They absolutely do.  What doesn't work is executing ROM from flash if
> the ROM cannot be treated as read-only memory.

Ah, great. In that case, that seems like the best approach. It should
make it easier to integrate into OVMF too, because it'll just be using
the 'standard' flash storage code with a different physical location.
Hopefully.

Can we get away with exposing an additional flash device in the physical
memory map immediately below the BIOS "ROM" and giving the firmware a
way to discover its location? Or do we need to do it "cleanly" by making
it a BAR of a PCI device?

-- 
dwmw2

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