[PATCH RFC 1/3] dt-bindings: riscv: Add Svukte entry

[Max Hsu]

Add an entry for the Svukte extension to the riscv,isa-extensions
property.

Reviewed-by: Samuel Holland <samuel.holland at sifive.com>
Signed-off-by: Max Hsu <max.hsu at sifive.com>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index a06dbc6b4928958704855c8993291b036e3d1a63..df96aea5e53a70b0cb8905332464a42a264e56e6 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -171,6 +171,13 @@ properties:
             memory types as ratified in the 20191213 version of the privileged
             ISA specification.
 
+        - const: svukte
+          description:
+            The standard Svukte supervisor-level extensions for making user-mode
+            accesses to supervisor memory raise page faults in constant time,
+            mitigating attacks that attempt to discover the supervisor
+            software's address-space layout, as PR#1564 of riscv-isa-manual.
+
         - const: zacas
           description: |
             The Zacas extension for Atomic Compare-and-Swap (CAS) instructions

-- 
2.43.2