Re: [Xen-users] USB Support for DomU - pciback.hide Problem

["Janusz Ulanowski" <janul666@xxxxxxxxx>]

On 17/10/2007, Pierre Bernhardt <pierre@xxxxxxxxxxxxxxxxxx> wrote:

Janusz Ulanowski schrieb:
> On 14/10/2007, Alexandros Manakos <alexandros@xxxxxxxxxx> wrote:
>> Hey everybody,
>>
>> i have a problem getting the usb interface running in my domU. I
>> successfully booted my dom0 and the log says "/pciback 0000:00:1d.7:
>> seizing device" (so did the parameters in grub.conf etc.)
>> / I also successfully started the virtual machine (domU) with "xm create
>> xmDebian pci=0000:00:1d.7" with no errors.
>> BUT when i connect to the domU machine and make a "lspci" it shows
>> nothing...no devices...
Janusz Ulanowski schrieb:
> On 14/10/2007, Alexandros Manakos < alexandros@xxxxxxxxxx> wrote:
>> Hey everybody,
>>
>> i have a problem getting the usb interface running in my domU. I
>> successfully booted my dom0 and the log says "/pciback 0000:00: 1d.7:
>> seizing device" (so did the parameters in grub.conf etc.)
>> / I also successfully started the virtual machine (domU) with "xm create
>> xmDebian pci=0000:00:1d.7" with no errors.
Hi,

I'd run a config which use my whole usb card in domu on debian xen on etch
(3.0.3).

My NEC Usb and my ALi USB has claimed more than one pci devices. Here a
tree of mypcidevices with ali:

xen:/etc/xen# lspci -vt
-[0000:00]-+-00.0  Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Conr
           +-01.0-[0000:01]----05.0  nVidia Corporation NV43 [GeForce 6200]
           +-07.0  Advanced Micro Devices [AMD] AMD-768 [Opus] ISA
           +-07.1  Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
           +-07.3  Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI
           +-08.0-[0000:02]--+-00.0  Sun Microsystems Computer Corp. EBUS
           |                 +-00.1  Sun Microsystems Computer Corp. Happy Meal
           |                 +-01.0  Sun Microsystems Computer Corp. EBUS
           |                 +-01.1  Sun Microsystems Computer Corp. Happy Meal
           |                 +-02.0  Sun Microsystems Computer Corp. EBUS
           |                 +-02.1  Sun Microsystems Computer Corp. Happy Meal
           |                 +-03.0  Sun Microsystems Computer Corp. EBUS
           |                 \-03.1  Sun Microsystems Computer Corp. Happy Meal
           +-09.0  Adaptec AHA-3960D / AIC-7899A U160/m
           +-09.1  Adaptec AHA-3960D / AIC-7899A U160/m
           \-10.0- [0000:03]--+-00.0  Advanced Micro Devices [AMD] AMD-768 [OpusB
                             +-04.0  Adaptec AHA-2940U/UW/D / AIC-7881U
                             +-05.0  Silicon Image, Inc. SiI 3114 [SATALink/SATr
                             +-07.0  ALi Corporation USB 1.1 Controller
                             +-07.1  ALi Corporation USB 1.1 Controller
                             +-07.2  ALi Corporation USB 1.1 Controller
                             +-07.3  ALi Corporation USB 2.0 Controller
                             \-08.0  3Com Corporation 3c905C-TX/TX-M [Tornado]


I'd trouble by pass only one of them to the domu so could you check
first, that you will export all your pci-devices of the usb-card?

Which xen-version is used in domu please?

Is it an hvm domu? Im not shure but I mean exporting pci-devices to an
hvm dom is not working, yet.

Could you give me a pcilist -tv to see your device tree, please?

Do you have checked, that the device is really claimed by the pciback?
Check with ls -l /sys/bus/pci/devices/0000\:00\:1d.7. Here is an example:
xen:/etc/xen# ls -l /sys/bus/pci/devices/0000\:02\:00.1/driver|less
lrwxrwxrwx 1 root root 0 2007-10-17 13:17 /sys/bus/pci/devices/0000:02:00.1/\
driver -> ../../../../bus/pci/drivers/pciback

And last question: Which guest kernel you are using?

MfG...
Pierre Bernhardt

Hi there,

I use xen 3.1 installed from source.
1. before hide pci

 # lspci -vt
-+-[0000:05]---02.0  Compaq Computer Corporation Smart Array 64xx
 +-[0000:02]-+-01.0  Intel Corporation 82546EB Gigabit Ethernet Controller (Copper)
 |           \-01.1  Intel Corporation 82546EB Gigabit Ethernet Controller (Copper)
 \-[0000:00]-+-00.0  Broadcom CMIC-WS Host Bridge (GC-LE chipset)
             +-00.1  Broadcom CMIC-WS Host Bridge (GC-LE chipset)
             +-00.2  Broadcom CMIC-LE
             +-02.0  Adaptec AHA-3960D / AIC-7899A U160/m
             +-02.1  Adaptec AHA-3960D / AIC-7899A U160/m
             +-03.0  ATI Technologies Inc Rage XL
             +-04.0  Broadcom Corporation NetXtreme BCM5702X Gigabit Ethernet
             +-05.0  Compaq Computer Corporation Advanced System Management Controller
             +-0f.0  Broadcom CSB5 South Bridge
             +-0f.1  Broadcom CSB5 IDE Controller
             +-0f.2  Broadcom OSB4/CSB5 OHCI USB Controller
             +-0f.3  Broadcom CSB5 LPC bridge
             +-
11.0  Broadcom CIOB-X2 PCI-X I/O Bridge
             \-11.2  Broadcom CIOB-X2 PCI-X I/O Bridge

# lspci -v
...
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05) (prog-if 10 [OHCI])
        Subsystem: Broadcom OSB4/CSB5 OHCI USB Controller
        Flags: bus master, medium devsel, latency 64, IRQ 11
        Memory at f5fc0000 (32-bit, non-prefetchable) [size=4K]
...

# lsusb
Bus 001 Device 002: ID 04e8:3242 Samsung Electronics Co., Ltd
Bus 001 Device 001: ID 0000:0000

---------------------------
2.  hiding pci from Dom0


# echo -n '0000:00:0f.2' > /sys/bus/pci/drivers/ohci_hcd/unbind
# echo -n '0000:00:0f.2' > /sys/bus/pci/drivers/pciback/new_slot
# echo -n '0000:00:0f.2' >  /sys/bus/pci/drivers/pciback/bind

-----------------
3. after hiding 


# lspci -v
...
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05) (prog-if 10 [OHCI])
        Subsystem: Broadcom OSB4/CSB5 OHCI USB Controller
        Flags: medium devsel, IRQ 11
        Memory at f5fc0000 (32-bit, non-prefetchable) [disabled] [size=4K]
...
# lsusb
[empty]

----------------------------
4. starting domU with option in config
pci = [ '00:0f.2' ]  

xm log  in attachement

----------------------

5. lspci -v in DomU
[empty]

------------


Thanks for you help

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