commit 42305f2264d50d727ef3b500775ea525a07bcb81
author Juan Pablo Conde <juanpablo.conde@arm.com> Tue Jul 12 16:40:29 2022 -0400
committer Juan Pablo Conde <juanpablo.conde@arm.com> Thu Aug 18 15:53:54 2022 -0400
tree 3bd2509c4c468311bc6844e9428b00de3aa9f0aa
parent 7dbccba38454e7123fb96f0edfb30bf3e06c43a0

feat(rng-trap): add EL3 support for FEAT_RNG_TRAP

FEAT_RNG_TRAP introduces support for EL3 trapping of reads of the
RNDR and RNDRRS registers, which is enabled by setting the
SCR_EL3.TRNDR bit. This patch adds a new build flag
ENABLE_FEAT_RNG_TRAP that enables the feature.
This feature is supported only in AArch64 state from Armv8.5 onwards.

Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: Ia9f17aef3444d3822bf03809036a1f668c9f2d89

changelog.yaml

diff --git a/changelog.yaml b/changelog.yaml
index c4028c4..986d303 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -125,6 +125,9 @@
       - title: Extended Cache Index (FEAT_CCIDX)
         scope: ccidx
 
+      - title: Trapping support for RNDR/RNDRRS (FEAT_RNG_TRAP)
+        scope: rng-trap
+
   - title: Platforms
 
     subsections: