arm64: Add support for using ARM Trusted Firmware as secure monitor

This patch adds support for integrating the runtime-resident component
of ARM Trusted Firmware (github.com/ARM-software/arm-trusted-firmware)
called BL31. It expects the ARM TF source tree to be checked out under
$(top)/3rdparty/arm-trusted-firmware, which will be set up in a later
patch.

Also include optional support for VBOOT2 verification (pretty hacky for
now, since CBFSv1 is just around the corner and will make all this so
much better).

BRANCH=None
BUG=None
TEST=Booted Oak with ARM TF and working PSCI (with additional platform
patches).

Change-Id: I8c923226135bdf88a9a30a7f5ff163510c35608d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: a1b3b2d56b25bfc1f3b2d19bf7876205075a987a
Original-Change-Id: I0714cc10b5b10779af53ecbe711ceeb89fb30da2
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/270784
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10249
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/arch/arm64/include/arm_tf.h b/src/arch/arm64/include/arm_tf.h
new file mode 100644
index 0000000000..af74c81b9e
--- /dev/null
+++ b/src/arch/arm64/include/arm_tf.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#ifndef __ARM_TF_H__
+#define __ARM_TF_H__
+
+#include <types.h>
+
+/* TODO: Pull in directly from ARM TF once its headers have been reorganized. */
+#include <arm_tf_temp.h>
+
+/* Load and enter BL31, set it up to exit to payload according to arguments. */
+void arm_tf_run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr);
+
+/* Return platform-specific bl31_plat_params. May update bl31_params. */
+void *soc_get_bl31_plat_params(bl31_params_t *bl31_params);
+
+#endif /* __ARM_TF_H__ */