[Xen-users] can't passthrough pci device with xen 4.2

[Xinli Niu <niuxinli1989@xxxxxxxxx>]

Hello,

    I want to passthrough a wireless netcard to a hvm domain.

 

    lspci
    ......

    02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)

    ......

 

    I use "xl pci-assignable-add 02:00.0"  to make the the device passthrough-able.

    "xl pci-assignable-list" shows the expected result : 0000:02:00.0

  

    My domU config file is as follows:

 

    builder = "hvm"
    name = "xp"
    memory = 512
    vcpus = 1
    vif = [ '' ]
    pci = [ '02:00.0' ]
    disk = [ 'file:/home/xxx/xp.img,hda,rw']
    sdl = 1

   

    When I create the domain, the following error appears:

     Parsing config from xp.hvm
     xc: info: VIRTUAL MEMORY ARRANGEMENT:
     Loader:        0000000000100000->000000000019db48
     TOTAL:         0000000000000000->000000001f800000
     ENTRY ADDRESS: 0000000000100000
     xc: info: PHYSICAL MEMORY ALLOCATION:
     4KB PAGES: 0x0000000000000200
     2MB PAGES: 0x00000000000000fb
    1GB PAGES: 0x0000000000000000
    libxl: error: libxl_exec.c:227:libxl__wait_for_offspring: Device Model not ready
    libxl: error: libxl_pci.c:846:qemu_pci_add_xenstore: qemu refused to add device: 0000:02:00.0,msitranslate=0,power_mgmt=0
    Daemon running with PID 16999

    "xl pci-assignable list" shows nothing after the creatation of the hvm.
     and "xl pci-list xp" show the following result:

     Vdev Device
     00.0 0000:02:00.0

 

      I can't find the device in domU. I don't know if the passthrough is successful, this is the first time I'm trying to do a passthrough with xen.  I tried several times with other devices, but the same problem. Anyone give me some help.

 

Best Regards,

Xinli

    

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