From dc2ec6afbf341bf3770af9e88c0c106c5eb34c6c Mon Sep 17 00:00:00 2001
From: spiritlhl <103393591+spiritLHLS@users.noreply.github.com>
Date: Sun, 10 Sep 2023 14:06:39 +0800
Subject: [PATCH] Update docker_custom.md

---
 docs/en_US/guide/docker_custom.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/docs/en_US/guide/docker_custom.md b/docs/en_US/guide/docker_custom.md
index 4a84c28b79..d866afef33 100644
--- a/docs/en_US/guide/docker_custom.md
+++ b/docs/en_US/guide/docker_custom.md
@@ -18,6 +18,16 @@ If the configured memory is not enough, then it's okay to make up for it with th
 
 **Host machine should have a minimum configuration of 1 core, 2GB RAM, and 15GB storage, else starting the setup might lead to host machine freezing.**
 
+**The host machine needs to support nested virtualization, If don't support it, you can try, but there is no guarantee that it will work 100% of the time.**
+
+Command:
+
+```shell
+egrep -c '(vmx|svm)' /proc/cpuinfo
+```
+
+The result should be greater than or equal to 1 and cannot be 0.
+
 Newer Android versions occupy more resources. The above configuration requirements are for the minimum version of Android. (Personally tested with the tag "12.0.0-latest", higher versions resulted in a blank screen. Test which version works for you.)
 
 **Setup:**