[RFC,v4,1/3] dt-bindings: riscv: Add Svukte entry

Commit Message

Max Hsu Dec. 13, 2024, 11:33 a.m. UTC

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

Reviewed-by: Samuel Holland <[e-mail]>
Reviewed-by: Deepak Gupta <[e-mail]>
Reviewed-by: Alexandre Ghiti <[e-mail]>
Signed-off-by: Max Hsu <[e-mail]>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

Patch

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 9c7dd7e75e0ca35f76eb666cdacfc297a7570958..b5d90765a376e065797ffdddf35302ed51ca7df1 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -217,6 +217,15 @@  properties:
             memory types as ratified in the 20191213 version of the privileged
             ISA specification.
 
+        - const: svukte
+          description:
+            The standard Svukte supervisor-level extension 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. Currently under review as Pull
+            Request number 1564 at commit 932cfa4 ("Move senvcfg.UKTE to correct
+            position") of riscv-isa-manual.
+
         - const: svvptc
           description:
             The standard Svvptc supervisor-level extension for