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authorAntonio Nino Diaz <antonio.ninodiaz@arm.com>2019-02-19 13:14:06 +0000
committerAntonio Nino Diaz <antonio.ninodiaz@arm.com>2019-02-19 14:59:56 +0000
commitd71446c38a18d2474290df870a3f537500a56bb9 (patch)
tree324e3fa0e84ecaaa4696c3bb34be5e9c43470e4f /docs/firmware-design.rst
parent41bd188266d78807bf4b78d7ef31c83fa51a58cd (diff)
downloadtrusted-firmware-a-d71446c38a18d2474290df870a3f537500a56bb9.tar.gz
docs: Update documentation about ARMv8.2-TTCNP
Commit 2559b2c8256f ("xlat v2: Dynamically detect need for CnP bit") modified the code to convert the compile-time check for ARMv8.2-TTCNP to a runtime check, but forgot to update the documentation associated to it. Change-Id: I6d33a4de389d976dbdcce65d8fdf138959530669 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'docs/firmware-design.rst')
-rw-r--r--docs/firmware-design.rst8
1 files changed, 3 insertions, 5 deletions
diff --git a/docs/firmware-design.rst b/docs/firmware-design.rst
index 617cbb8861..876a251948 100644
--- a/docs/firmware-design.rst
+++ b/docs/firmware-design.rst
@@ -2544,10 +2544,8 @@ This Architecture Extension is targeted when ``ARM_ARCH_MAJOR`` >= 8, or when
Armv8.2-A
~~~~~~~~~
-This Architecture Extension is targeted when ``ARM_ARCH_MAJOR`` == 8 and
-``ARM_ARCH_MINOR`` >= 2.
-
-- The Common not Private (CnP) bit is enabled to indicate that multiple
+- The presence of ARMv8.2-TTCNP is detected at runtime. When it is present, the
+ Common not Private (TTBRn_ELx.CnP) bit is enabled to indicate that multiple
Processing Elements in the same Inner Shareable domain use the same
translation table entries for a given stage of translation for a particular
translation regime.
@@ -2642,7 +2640,7 @@ References
--------------
-*Copyright (c) 2013-2018, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.*
.. _Reset Design: ./reset-design.rst
.. _Porting Guide: ./porting-guide.rst