From 3e15c315f97401f394ae83ed17fbef72b765222a Mon Sep 17 00:00:00 2001
From: Etienne Carriere <etienne.carriere@st.com>
Date: Thu, 10 Sep 2020 10:50:01 +0200
Subject: [PATCH] optee: add property no-map to secure reserved memory
OP-TEE reserved memory node must set property "no-map" to prevent
Linux kernel from mapping secure memory unless what non-secure world
speculative accesses of the CPU can violate the memory firmware
configuration.
Fixes: 6ccb05eae01b ("image: fdt: copy possible optee nodes to a loaded devicetree")
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---
lib/optee/optee.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/optee/optee.c b/lib/optee/optee.c
index 963c2ff430..9e6606568f 100644
--- a/lib/optee/optee.c
+++ b/lib/optee/optee.c
@@ -192,7 +192,7 @@ int optee_copy_fdt_nodes(const void *old_blob, void *new_blob)
ret = fdtdec_add_reserved_memory(new_blob,
nodename,
&carveout,
- NULL, false);
+ NULL, true);
free(oldname);
if (ret < 0)
--
2.39.5