[PATCH 09/18] optee: add header version check

[Marco Felsch <m.felsch@pengutronix.de>]

OPTEE supports two header versions right now we do only support V1.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 common/optee.c      | 5 +++++
 include/tee/optee.h | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/common/optee.c b/common/optee.c
index fd2b03d06d2d..6a8084839619 100644
--- a/common/optee.c
+++ b/common/optee.c
@@ -14,6 +14,11 @@ int optee_verify_header(struct optee_header *hdr)
 		return -EINVAL;
 	}
 
+	if (hdr->version != OPTEE_VERSION_V1) {
+		pr_err("Only V1 headers are supported right now\n");
+		return -EINVAL;
+	}
+
 	if (IS_ENABLED(CPU_V7) &&
 	    (hdr->arch != OPTEE_ARCH_ARM32 || hdr->init_load_addr_hi)) {
 		pr_err("Wrong OP-TEE Arch for ARM v7 CPU\n");
diff --git a/include/tee/optee.h b/include/tee/optee.h
index 607f5072d385..b5ba0a71d7c9 100644
--- a/include/tee/optee.h
+++ b/include/tee/optee.h
@@ -14,7 +14,8 @@
 #include <linux/errno.h>
 
 #define OPTEE_MAGIC             0x4554504f
-#define OPTEE_VERSION           1
+#define OPTEE_VERSION_V1        1
+#define OPTEE_VERSION_V2        2
 #define OPTEE_ARCH_ARM32        0
 #define OPTEE_ARCH_ARM64        1
 
-- 
2.39.2