add h extension about qemu

rustsbi · Feb 23, 2023 · 72b6b8d · 72b6b8d
1 parent 166cc0a
commit 72b6b8d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -117,7 +117,9 @@ You should use these following line of parameters:
     command.args(&["-cpu", "rv64,x-h=true"]);
 ```
 
-... to enable H extension on QEMU software.
+... to enable H extension on QEMU software.  
+
+The H extension is enabled by default when QEMU version >= 7.0.0.
 
 3. What is the minimum supported Rust version of this package?