Starting with release 1.7 qemu provides acpi tables via fw_cfg. Main
advantage is that new (virtual) hardware which needs acpi support
JustWorks[tm] without having to patch & update the firmware (seabios,
coreboot, ...) accordingly.
So if we find acpi tables in fw_cfg try loading them, otherwise fallback
to the builtin acpi tables.
Change-Id: I792232829b870ff6ed8414a3007e0af17f6c4223
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/4040
Tested-by: build bot (Jenkins)
d69da8475e