playbook: prevent kvm_intel from being loaded by udev.

When module was loaded by udev, there wasn't the parameter nested=Y

/reviewed-on nexedi/slapos.package!100

playbook/roles/vifib-server/tasks/kvm.yml

 ---
 
-  - modprobe: name=kvm_intel state=present params='nested=Y'
+  - name: Insert kvm_intel module with parameter nested=Y
+    modprobe: name=kvm_intel state=present params='nested=Y'
     ignore_errors: True
 
+  - name: Prevent kvm_intel module from being loaded by udev
+    lineinfile:
+      dest: /etc/modprobe.d/blacklist.conf
+      line: "blacklist kvm_intel"
+      state: present
+      create: yes
+
   - pause: seconds=2
 
   - stat: path=/dev/kvm
@@ -13,7 +21,8 @@
     when: dev_kvm.stat.exists == True
 
 
-  - modprobe: name=vhost-net state=present
+  - name: Insert vhost-net module
+    modprobe: name=vhost-net state=present
     ignore_errors: True
 
   - pause: seconds=2