commit 533d8b32bddce84c5dc7a1d1d058fffec2d5f849
author Sandrine Bailleux <sandrine.bailleux@arm.com> Thu Jun 10 11:18:04 2021 +0200
committer Sandrine Bailleux <sandrine.bailleux@arm.com> Tue Jun 29 15:14:23 2021 +0200
tree 39c14a141427c68a9df79d181d0eb9e711d50b1a
parent 87c66b5cfaeb7fcc3c090333cda671ec551daa93

docs: explain Measured Boot dependency on Trusted Boot

Change-Id: I04d9439d5967e93896dfdb0f3d7b0aec96c743f9
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Makefile

diff --git a/Makefile b/Makefile
index 017fc65..2ec988e 100644
--- a/Makefile
+++ b/Makefile
@@ -735,6 +735,9 @@
     endif
 endif
 
+# Trusted Boot is a prerequisite for Measured Boot. It provides trust that the
+# code taking the measurements and recording them has not been tampered
+# with. This is referred to as the Root of Trust for Measurement.
 ifeq ($(MEASURED_BOOT),1)
     ifneq (${TRUSTED_BOARD_BOOT},1)
         $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1)