Mark CBIE field as WARL (riscv#1684)

aswaterman · web-flow · commit f455143e7b0d · 2024-10-15T22:08:21.000Z
Resolves riscv#1682
diff --git a/src/cmo.adoc b/src/cmo.adoc
@@ -559,7 +559,7 @@ generic format:
 |===
 | Bits    | Name     | Description
 
-| [5:4]   | `CBIE`   | Cache Block Invalidate instruction Enable
+| [5:4]   | `CBIE`   | Cache Block Invalidate instruction Enable.  *WARL*.
 
 Enables the execution of the cache block invalidate instruction, `CBO.INVAL`, in
 a lower privilege mode:
