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authorFurquan Shaikh <furquan@google.com>2014-08-26 15:39:51 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-03-28 07:05:09 +0100
commitabde3b56cebc611391a3e3ec63172acefea4daae (patch)
tree3aa00bea4e70a5303a7a8d8ddf7a9772217743b9 /src/arch/arm64/include/armv8
parentab020f304efdac61d38876a95005d8478659faae (diff)
arm64: Add support for secure monitor
Secure monitor runs at EL3 and is responsible for jumping to the payload at specified EL and also to manage features like PSCI. Adding basic implementation of secure monitor as a rmodule. Currently, it just jumps to the the payload at current EL. Support for switching el and PSCI will be added as separate patches. CQ-DEPEND=CL:218300 BUG=chrome-os-partner:30785 BRANCH=None TEST=Compiles succesfully and secure monitor loads and runs payload on ryu Change-Id: If0f22299a9bad4e93311154e5546f5bae3f3395c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 5e40a21115aeac1cc3c73922bdc3e42d4cdb7d34 Original-Change-Id: I86d5e93583afac141ff61475bd05c8c82d17d926 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/214371 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/9080 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/arch/arm64/include/armv8')
-rw-r--r--src/arch/arm64/include/armv8/arch/secmon.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/arch/arm64/include/armv8/arch/secmon.h b/src/arch/arm64/include/armv8/arch/secmon.h
new file mode 100644
index 0000000000..5245e31760
--- /dev/null
+++ b/src/arch/arm64/include/armv8/arch/secmon.h
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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 __ARCH_ARM64_ARMV8_SECMON__
+#define __ARCH_ARM64_ARMV8_SECMON__
+
+#include <arch/cpu.h>
+
+#if IS_ENABLED(CONFIG_ARCH_USE_SECURE_MONITOR)
+
+struct secmon_params {
+ void (*entry)(void *);
+ void *arg;
+ uint8_t elx_el;
+ uint8_t elx_mode;
+};
+
+void secmon_run(void (*entry)(void *), void *arg);
+void soc_get_secmon_base_size(uint64_t *secmon_base, size_t *secmon_size);
+
+#else
+
+static inline void secmon_run(void (*entry)(void *), void *arg) {}
+
+#endif /* IS_ENABLED(CONFIG_ARCH_USE_SECURE_MONITOR) */
+
+#endif /*__ARCH_ARM64_ARMV8_SECMON__ */