harikrishna-patnala commented on a change in pull request #4447:
URL: https://github.com/apache/cloudstack/pull/4447#discussion_r518553838



##########
File path: 
plugins/hypervisors/xenserver/src/main/java/com/cloud/hypervisor/XenServerGuru.java
##########
@@ -98,7 +98,12 @@ public VirtualMachineTO implement(VirtualMachineProfile vm) {
         if (userVmVO != null) {
             HostVO host = hostDao.findById(userVmVO.getHostId());
             if (host != null) {
-                
to.setVcpuMaxLimit(MaxNumberOfVCPUSPerVM.valueIn(host.getClusterId()));
+                // Max cpu cannot be more than host capability
+                if (host.getCpus() < 
MaxNumberOfVCPUSPerVM.valueIn(host.getClusterId()))
+                    to.setVcpuMaxLimit(host.getCpus());

Review comment:
       please put a log message which explans why we are setting that value, 
otherwise user may think why a different value is set other than 
"xen.vm.vcpu.max"




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