commit c37eee72b63e465db767cd9cc784ec13c313d37f
author Mark Brown <broonie@kernel.org> Tue Mar 14 20:13:03 2023 +0000
committer Mark Brown <broonie@kernel.org> Thu Mar 16 16:45:31 2023 +0000
tree 9a61175c48c3511fcf8e4ac10f5d4cc2d180b1af
parent 746a339c8e2ef5e65aa50c9ca1f22ac5e3b1987d

feat(tcr2): support FEAT_TCR2

Arm v8.9 introduces FEAT_TCR2, adding extended translation control
registers. Support this, context switching TCR2_EL2 and disabling
traps so lower ELs can access the new registers.

Change the FVP platform to default to handling this as a dynamic option so
the right decision can be made by the code at runtime.

Signed-off-by: Mark Brown <broonie@kernel.org>
Change-Id: I297452acd8646d58bac64fc15e05b06a543e5148

Makefile

diff --git a/Makefile b/Makefile
index 04b75fe..cf2a402 100644
--- a/Makefile
+++ b/Makefile
@@ -1162,6 +1162,7 @@
         ENABLE_FEAT_RNG_TRAP \
         ENABLE_FEAT_SB \
         ENABLE_FEAT_SEL2 \
+        ENABLE_FEAT_TCR2 \
         ENABLE_FEAT_VHE \
         ENABLE_MPAM_FOR_LOWER_ELS \
         ENABLE_RME \
@@ -1293,6 +1294,7 @@
         ENABLE_FEAT_VHE \
         ENABLE_FEAT_CSV2_2 \
         ENABLE_FEAT_PAN \
+        ENABLE_FEAT_TCR2 \
         FEATURE_DETECTION \
         TWED_DELAY \
         ENABLE_FEAT_TWED \