Description of problem:
For host NUMA there are 4 cell id configuration. Launch virt-manager, Click Generate from host NUMA configuration button, found it only display the vcpu in cell id equal 0.

Version-Release number of selected component (if applicable):
libvirt-0.9.1-1.el6.x86_64
virt-manager-0.8.6-4.el6.noarch

How reproducible:
Always

Steps to Reproduce:
1. # virsh capabilities
...
    <topology>
      <cells num='4'>
        <cell id='0'>
          <cpus num='16'>
            <cpu id='0'/>
            <cpu id='4'/>
            <cpu id='8'/>
            <cpu id='12'/>
            <cpu id='16'/>
            <cpu id='20'/>
            <cpu id='24'/>
            <cpu id='28'/>
            <cpu id='32'/>
            <cpu id='36'/>
            <cpu id='40'/>
            <cpu id='44'/>
            <cpu id='48'/>
            <cpu id='52'/>
            <cpu id='56'/>
            <cpu id='60'/>
          </cpus>
        </cell>
        <cell id='1'>
          <cpus num='16'>
            <cpu id='1'/>
            <cpu id='5'/>
            <cpu id='9'/>
            <cpu id='13'/>
            <cpu id='17'/>
            <cpu id='21'/>
            <cpu id='25'/>
            <cpu id='29'/>
            <cpu id='33'/>
            <cpu id='37'/>
            <cpu id='41'/>
            <cpu id='45'/>
            <cpu id='49'/>
            <cpu id='53'/>
            <cpu id='57'/>
            <cpu id='61'/>
          </cpus>
        </cell>
        <cell id='2'>
          <cpus num='16'>
            <cpu id='2'/>
            <cpu id='6'/>
            <cpu id='10'/>
            <cpu id='14'/>
            <cpu id='18'/>
            <cpu id='22'/>
            <cpu id='26'/>
            <cpu id='30'/>
            <cpu id='34'/>
            <cpu id='38'/>
            <cpu id='42'/>
            <cpu id='46'/>
            <cpu id='50'/>
            <cpu id='54'/>
            <cpu id='58'/>
            <cpu id='62'/>
          </cpus>
        </cell>
        <cell id='3'>
          <cpus num='16'>
            <cpu id='3'/>
            <cpu id='7'/>
            <cpu id='11'/>
            <cpu id='15'/>
            <cpu id='19'/>
            <cpu id='23'/>
            <cpu id='27'/>
            <cpu id='31'/>
            <cpu id='35'/>
            <cpu id='39'/>
            <cpu id='43'/>
            <cpu id='47'/>
            <cpu id='51'/>
            <cpu id='55'/>
            <cpu id='59'/>
            <cpu id='63'/>
          </cpus>
        </cell>
      </cells>
    </topology>
...
2. Select a shutdown guest in virt-manager, Click Generate from host NUMA configuration button, click Apply button
3. Then the values will display in Default pinning textbox. Check these values are right or not
  
Actual results:
It display as 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60. Which are all in cell id=0

Expected results:
Since this button is about host NUMA configuration, and from the host it has 4 cell id. So I think it should support user to select the cell id (1 or more) or display all the cpu id in all cell id if can not select cell.

Additional info: