No, that's not possible. See these blog entries to check what you can do:

  http://blogs.sun.com/achartre/entry/devices_and_pci_buses_on
  http://blogs.sun.com/achartre/entry/split_pci_with_ldoms

alex.

Vic Engle wrote:
> Chap 5 of the admin guide explains how to give a guest domain hardware access 
> by removing a PCI bus from the initial primary/control domain and then adding 
> it to the guest domain. The commands are...
> 
> ldm remove-io pci at 780 primary
> ldm add-io pci at 780 ldom1
> 
> The T2000 has 2 pci buses so I was hoping I could make some pci slots 
> available to a guest domain so I could give that domain real HBAs instead of 
> vdisks. When I look at prtdiag though it appears that the only hardware 
> connected to pci at 780 would be 2 of the e1000g nics. I'll attach prtdiag 
> output.
> 
> Is it possible to remove/add a single pci slot to a domain?
> 
> Thanks
> Vic
> 
> ========================= IO Configuration =========================
> 
>             IO
> Location    Type  Slot Path                                          Name     
>                  Model
> ----------- ----- ---- --------------------------------------------- 
> ------------------------- ---------
> IOBD/NET0    PCIE IOBD                /pci at 780/pci at 0/pci at 1/network 
> at 0    network-pciex8086,105e
> IOBD/NET1    PCIE IOBD              /pci at 780/pci at 0/pci at 1/network at 
> 0,1    network-pciex8086,105e
> IOBD/PCIX    PCIX IOBD              /pci at 7c0/pci at 0/pci at 1/pci at 
> 0/isa at 2                       isa
> IOBD/PCIX    PCIX IOBD              /pci at 7c0/pci at 0/pci at 1/pci at 
> 0/usb at 5       usb-pciclass,0c0310
> IOBD/PCIX    PCIX IOBD              /pci at 7c0/pci at 0/pci at 1/pci at 
> 0/usb at 6       usb-pciclass,0c0310
> IOBD/PCIX    PCIX IOBD              /pci at 7c0/pci at 0/pci at 1/pci at 
> 0/ide at 8          ide-pci10b9,5229
> IOBD/NET2    PCIE IOBD                /pci at 7c0/pci at 0/pci at 2/network 
> at 0    network-pciex8086,105e
> IOBD/NET3    PCIE IOBD              /pci at 7c0/pci at 0/pci at 2/network at 
> 0,1    network-pciex8086,105e
> IOBD/PCIE1   PCIE    1                   /pci at 7c0/pci at 0/pci at 8/lpfc 
> at 0         lpfc-pci10df,fe00   42C2071
> IOBD/PCIE1   PCIE    1                 /pci at 7c0/pci at 0/pci at 8/lpfc at 
> 0,1         lpfc-pci10df,fe00   42C2071
> IOBD/PCIE2   PCIE    2                 /pci at 7c0/pci at 0/pci at 9/SUNW,qlc 
>                  SUNW,qlc   QLA24xx
> IOBD/PCIE2   PCIE    2                 /pci at 7c0/pci at 0/pci at 9/SUNW,qlc 
>                  SUNW,qlc   QLA24xx
> --
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