Description of problem:

The documentation still suggests:

In order to pin a virtual machine to a host, you must select Do not allow migration under Migration Options, and select the Use Host CPU check box. 

There is no more 'Use Host CPU check box' in the webadmin-portal.

The docs need to be updated to 'Use Pass-Through Host CPU' check box.

Also a clear flow like below would be great to have:

In the Edit VM window 
 |
 |--------> Host TAB 
 |            |--------> Start Running On: Specific Host
 |            |--------> Migration Options: Set "Do not allow migration"
 |            |--------> Pass-Through Host CPU
 |
 |--------> Resource Allocation TAB
              |--------> CPU Allocation: 
                         |---------> CPU Pinning topology: 0#2_1#4

[The above is just an example of mapping vCPU#0:pCPU2,vCPU#1:pCPU#4]

Version-Release number of selected component (if applicable): rhevm-3.5