coreboot: introduce boot_device
The boot_device is a region_device that represents the
device from which coreboot retrieves and boots its stages.
The existing cbfs implementations use the boot_device as
the intermediary for accessing the CBFS region. Also,
there's currently only support for a read-only view of
the boot_device. i.e. one cannot write to the boot_device
using this view. However, a writable boot_device could
be added in the future.
Signed-off-by: Aaron Durbin <email@example.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <firstname.lastname@example.org>
Reviewed-by: Patrick Georgi <email@example.com>
25 files changed