facts: detect FreeBSD KVM guests (#50030)

Fixes: #49158

changelogs/fragments/49158-detect-kvm-on-freebsd.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+  - Detect FreeBSD KVM guests in facts (https://github.com/ansible/ansible/issues/49158)

lib/ansible/module_utils/facts/virtual/freebsd.py

@@ -19,9 +19,10 @@ __metaclass__ = type
 import os
 
 from ansible.module_utils.facts.virtual.base import Virtual, VirtualCollector
+from ansible.module_utils.facts.virtual.sysctl import VirtualSysctlDetectionMixin
 
 
-class FreeBSDVirtual(Virtual):
+class FreeBSDVirtual(Virtual, VirtualSysctlDetectionMixin):
     """
     This is a FreeBSD-specific subclass of Virtual.  It defines
     - virtualization_type
@@ -39,6 +40,14 @@ class FreeBSDVirtual(Virtual):
             virtual_facts['virtualization_type'] = 'xen'
             virtual_facts['virtualization_role'] = 'guest'
 
+        if virtual_facts['virtualization_type'] == '':
+            virtual_product_facts = self.detect_virt_product('kern.vm_guest') or self.detect_virt_product('hw.hv_vendor')
+            virtual_facts.update(virtual_product_facts)
+
+        if virtual_facts['virtualization_type'] == '':
+            virtual_vendor_facts = self.detect_virt_vendor('hw.model')
+            virtual_facts.update(virtual_vendor_facts)
+
         return virtual_facts
 
 

lib/ansible/module_utils/facts/virtual/sysctl.py

@@ -30,7 +30,7 @@ class VirtualSysctlDetectionMixin(object):
         if self.sysctl_path:
             rc, out, err = self.module.run_command("%s -n %s" % (self.sysctl_path, key))
             if rc == 0:
-                if re.match('(KVM|Bochs|SmartDC).*', out):
+                if re.match('(KVM|kvm|Bochs|SmartDC).*', out):
                     virtual_product_facts['virtualization_type'] = 'kvm'
                     virtual_product_facts['virtualization_role'] = 'guest'
                 elif re.match('.*VMware.*', out):