feat(sme): enable SME2 functionality for NS world
FEAT_SME2 is an extension of FEAT_SME and an optional feature
from v9.2. Its an extension of SME, wherein it not only
processes matrix operations efficiently, but also provides
outer-product instructions to accelerate matrix operations.
It affords instructions for multi-vector operations.
Further, it adds an 512 bit architectural register ZT0.
This patch implements all the changes introduced with FEAT_SME2
to ensure that the instructions are allowed to access ZT0
register from Non-secure lower exception levels.
Additionally, it adds support to ensure FEAT_SME2 is aligned
with the existing FEATURE DETECTION mechanism, and documented.
Change-Id: Iee0f61943304a9cfc3db8f986047b1321d0a6463
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
diff --git a/changelog.yaml b/changelog.yaml
index d54c62b..6dbb9b2 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -128,7 +128,7 @@
- title: Trapping support for RNDR/RNDRRS (FEAT_RNG_TRAP)
scope: rng-trap
- - title: Scalable Matrix Extension (FEAT_SME)
+ - title: Scalable Matrix Extension (FEAT_SME, FEAT_SME2)
scope: sme
- title: Statistical profiling Extension (FEAT_SPE)