refactor(mte): remove mte, mte_perm
Currently both FEAT_MTE and FEAT_MTE_PERM aren't used for enabling
of any feature bits in EL3. So remove both FEAT handling.
All mte regs that are currently context saved/restored are needed
only when FEAT_MTE2 is enabled, so move to usage of FEAT_MTE2 and
remove FEAT_MTE usage.
BREAKING CHANGE: Any platform or downstream code trying to use
SCR_EL3.ATA bit(26) will see failures as this is now moved to be
used only with FEAT_MTE2 with
commit@ef0d0e5478a3f19cbe70a378b9b184036db38fe2
Change-Id: Id01e154156571f7792135639e17dc5c8d0e17cf8
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
diff --git a/common/feat_detect.c b/common/feat_detect.c
index 7a2f0d7..7f01037 100644
--- a/common/feat_detect.c
+++ b/common/feat_detect.c
@@ -167,9 +167,7 @@
"TRF", 1, 1);
/* v8.5 features */
- check_feature(ENABLE_FEAT_MTE, read_feat_mte_id_field(), "MTE",
- MTE_IMPLEMENTED_EL0, MTE_IMPLEMENTED_ASY);
- check_feature(ENABLE_FEAT_MTE2, read_feat_mte_id_field(), "MTE2",
+ check_feature(ENABLE_FEAT_MTE2, get_armv8_5_mte_support(), "MTE2",
MTE_IMPLEMENTED_ELX, MTE_IMPLEMENTED_ASY);
check_feature(ENABLE_FEAT_RNG, read_feat_rng_id_field(), "RNG", 1, 1);
read_feat_bti();
@@ -204,8 +202,6 @@
"S2POE", 1, 1);
check_feature(ENABLE_FEAT_S1POE, read_feat_s1poe_id_field(),
"S1POE", 1, 1);
- check_feature(ENABLE_FEAT_MTE_PERM, read_feat_mte_perm_id_field(),
- "MTE_PERM", 1, 1);
check_feature(ENABLE_FEAT_CSV2_3, read_feat_csv2_id_field(),
"CSV2_3", 3, 3);