From 72b6b8dec718914d4e0d8eb7fc98616eb2f0b022 Mon Sep 17 00:00:00 2001
From: KuangjuX <18630816527@163.com>
Date: Thu, 23 Feb 2023 20:48:57 +0800
Subject: [PATCH] add h extension about qemu

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 470835d..886b496 100644
--- 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?