mb/emulation/qemu-aarch64: Add ARM trusted firmware support

Linux expects a working PSCI and hangs if not found.
Add BL31 into CBFS as '-M virt,secure=on -bios ' commands line arguments cause
qemu's internal PSCI emulation to shutdown.
BL31 is placed in qemu's SECURERAM memory region and won't conflict with
resources in DRAM.

Tested on qemu-system-aarch64:
Fixes a hang and allows to boot into Linux 5.4.14 userspace.

Change-Id: I809742522240185431621cc4fd8b9c7deaf2bb54
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38535
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

0 files changed, 0 insertions, 0 deletions