[coreboot-gerrit] Change in coreboot[master]: mb/emulation/qemu-aarch64: Add ARM trusted firmware support

[Patrick Rudolph (Code Review)]

Hello Julius Werner, build bot (Jenkins), Patrick Georgi, Martin Roth,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/38535

to look at the new patch set (#3).

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

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 
---
M src/mainboard/emulation/qemu-aarch64/Kconfig
M src/mainboard/emulation/qemu-aarch64/Makefile.inc
M src/mainboard/emulation/qemu-aarch64/bootblock.c
M src/mainboard/emulation/qemu-aarch64/include/mainboard/addressmap.h
M src/mainboard/emulation/qemu-aarch64/mainboard.c
M src/mainboard/emulation/qemu-aarch64/memlayout.ld
6 files changed, 19 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/38535/3