xen statistics gathering?

["Aaron J. Grier" <agrier%poofygoof.com@localhost>]

What needs to be done to allow statistics gathering for NET and VBD
statistics shown with "xl top" with a NetBSD Dom0?  CPU and MEM load
works, but the rest of the columns are blank:

xentop - 11:19:55   Xen 4.1.3
5 domains: 1 running, 4 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 8124556k total, 8124136k used, 420k free    CPUs: 2 @ 3000MHz
      NAME  STATE   CPU(sec) CPU(%)     MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%) 
VCPUS NETS NETTX(k) NETRX(k) VBDS   VBD_OO   VBD_RD   VBD_WR  VBD_RSECT  
VBD_WSECT SSID
      damo --b---      43556    4.4    2097104   25.8    2098176      25.8     
2    0        0        0    0        0        0        0          0          0  
  0
  Domain-0 -----r     117763    3.9     262144    3.2   no limit       n/a     
2    0        0        0    0        0        0        0          0          0  
  0
    theano --b---      22330    0.4     582656    7.2     583680       7.2     
2    0        0        0    0        0        0        0          0          0  
  0
      milo --b---      20731    0.2     842752   10.4     843776      10.4     
2    0        0        0    0        0        0        0          0          0  
  0
    euclid --b---       2264    0.3    4190160   51.6    4195328      51.6     
2    0        0        0    0        0        0        0          0          0  
  0

  Delay  Networks  vBds  Tmem  VCPUs  Repeat header  Sort order  Quit           
                                                                                
                                  

is this something missing or disabled on the xen side or the NetBSD side?

-- 
  Aaron J. Grier | "Not your ordinary poofy goof." | 
agrier%poofygoof.com@localhost