RosiKyu commented on code in PR #616:
URL: 
https://github.com/apache/cloudstack-documentation/pull/616#discussion_r2675629188


##########
source/adminguide/virtual_machines.rst:
##########
@@ -175,6 +175,18 @@ To create an Instance from a Template:
    specified at the Instance or Template level. For an existing Instance its 
settings can be updated while it is in
    stopped state by admin.
 
+   **KVM**
+
+   Instances running on the KVM hypervisor with UEFI Secure Boot have disk 
controllers automatically enforced:
+
+   - Windows OS instances use SATA
+   - Non-Windows OS instances use VirtIO
+
+   Starting with 4.20.3 and later, this behavior can be overridden by setting 
the following template or instance detail:
+
+   ``skip.force.disk.controller = true``
+
+   When set, disk controller enforcement is skipped and the controllers 
defined by template/instance details are used.

Review Comment:
   @sureshanaparti ,@shwstppr  - based on the test results so far, 
instance-level detail takes priority over template-level (standard CloudStack 
behavior). We can add: 'If set on both template and instance, the instance 
setting takes precedence.'"



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