diff --git a/.github/workflows/kernel_test.yml b/.github/workflows/kernel_test.yml
index 8e35d8ea..c02320a6 100644
--- a/.github/workflows/kernel_test.yml
+++ b/.github/workflows/kernel_test.yml
@@ -82,4 +82,4 @@ jobs:
         
       - name: Regression Test (Linux EFI Handover Boot Protocol)
         id: regression_test_linux
-        run: make run AUTO_TEST=regression ENABLE_KVM=0 BOOT_PROTOCOL=multiboot2 RELEASE=1
\ No newline at end of file
+        run: make run AUTO_TEST=regression ENABLE_KVM=0 BOOT_PROTOCOL=linux-efi-handover64 RELEASE=1
diff --git a/.github/workflows/vsock_interaction.yml b/.github/workflows/vsock_interaction.yml
index 7c8e38ae..0e22676c 100644
--- a/.github/workflows/vsock_interaction.yml
+++ b/.github/workflows/vsock_interaction.yml
@@ -1,10 +1,7 @@
 name: Vsock Interaction
 
 on:
-  pull_request:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 jobs:
   vsock-test:
diff --git a/OSDK.toml b/OSDK.toml
index fdf05dfa..cab5e9ae 100644
--- a/OSDK.toml
+++ b/OSDK.toml
@@ -72,4 +72,4 @@ qemu.args = """\
     -device virtconsole,chardev=mux \
     -monitor chardev:mux \
     -serial chardev:mux \
-"""
+"""
\ No newline at end of file
diff --git a/regression/apps/scripts/run_vsock_test.sh b/regression/apps/scripts/run_vsock_test.sh
index a07f3dc4..25c6a458 100644
--- a/regression/apps/scripts/run_vsock_test.sh
+++ b/regression/apps/scripts/run_vsock_test.sh
@@ -2,6 +2,10 @@
 
 # SPDX-License-Identifier: MPL-2.0
 
+# To successfully run the vsock test, you should
+# 1. Run vsock server binding port 1234 on the host, before running ./vsock_client
+# 2. Run vsock client connecting (cid,port)=(3,4321) on the host, after running ./vsock_server
+
 set -e
 
 VSOCK_DIR=/regression/vsock
diff --git a/tools/qemu_args.sh b/tools/qemu_args.sh
index e9ee7fa5..b07ff91a 100755
--- a/tools/qemu_args.sh
+++ b/tools/qemu_args.sh
@@ -5,7 +5,7 @@
 # This script is used to generate QEMU arguments for OSDK.
 # The positional argument $1 is the scheme.
 # A switch "-ovmf" can be passed as an argument to enable OVMF.
-# The positional argument $2 can be passed as "vsock" to trigger vsock module.
+# The enrivonmental variable VSOCK can be passed as 1 to trigger vsock module.
 
 RAND_PORT_NUM1=$(shuf -i 1024-65535 -n 1)
 RAND_PORT_NUM2=$(shuf -i 1024-65535 -n 1)