[Fedora-xen] Problem assigning a usb or pci port to a domU

[y-oguchi at jp.fujitsu.com]

Hi,

Looks like default config disables PCI passthrough, 
you can turn it on manually.
see
 http://article.gmane.org/gmane.comp.emulators.xen.user/16007

Thanks,
Yoshi
--
"Pascal Parrot" <pascal_parrot at hotmail.com>　wrotec：
> Hi,
> I am (re)posting this here as I haven't had much luck on the xen user 
> mailing list.
> I am using FC5 and xen 3.0.2 (what comes with yum).
> 
> I am trying to assign a pci or usb port to a domU. I get to the point 
where 
> pciback seizes the devices (5 usb and 2 pci) by modifying the 
> /etc/modprobe.conf configuration as explained in 
> http://wiki.xensourccom/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module.
> 
> I then modified the configuration of the domU with pci = [ '00:1d.0' , 
> '00:1d.1' , '00:1d.2' , '00:1d.3' , '00:1d.7', '02:01.0' , '02:02.0' ] 
but 
> nothing shows up in the domU. I also tried adding the parameter in the 
> command line (xm create domu pci=...).
> 
> [root at web ~]# lsusb
> [root at web ~]# lspci
> pcilib: Cannot open /proc/bus/pci
> lspci: Cannot find any working access method.
> [root at web ~]#
> 
> How can I make the domU recognize the two LAN interfaces and 2 usb 
devices 
> (usb drive and ethernet interface) plugged in? Could it be that these 
> devices do not have drivers? How can I check/fix that?
> 
> Here is part of the dmesg
> pciback 0000:00:1d.0: seizing device
> pciback 0000:00:1d.1: seizing device
> pciback 0000:00:1d.2: seizing device
> pciback 0000:00:1d.3: seizing device
> pciback 0000:00:1d.7: seizing device
> pciback 0000:02:01.0: seizing device
> pciback 0000:02:02.0: seizing device
> ACPI: PCI Interrupt 0000:02:02.0[A] -> GSI 17 (level, low) -> IRQ 17
> ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 22 (level, low) -> IRQ 18
> ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 19
> ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 16 (level, low) -> IRQ 20
> ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 16
> ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 21
> ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 20
> 
> After I start the domU
> pciback: vpci: 0000:00:1d.0: assign to virtual slot 0
> pciback: vpci: 0000:00:1d.1: assign to virtual slot 0 func 1
> pciback: vpci: 0000:00:1d.2: assign to virtual slot 0 func 2
> pciback: vpci: 0000:00:1d.3: assign to virtual slot 0 func 3
> pciback: vpci: 0000:00:1d.7: assign to virtual slot 0 func 7
> pciback: vpci: 0000:02:01.0: assign to virtual slot 1
> pciback: vpci: 0000:02:02.0: assign to virtual slot 2
> 
> There is an eror message in xm dmesg but, from what I read, it does 
not seem 
> to be a problem. (XEN) DOM4: (file=mm.c, line=578) Non-privileged 
attempt to 
> map I/O space 00000000 (XEN) DOM4: (file=mm.c, line=578) Non-
privileged 
> attempt to map I/O space 00000000
> 
> This is what I get from lsusb when I do not assign it to a domU
> lsusb
> Bus 005 Device 001: ID 0000:0000
> Bus 001 Device 001: ID 0000:0000
> Bus 004 Device 002: ID 05dc:0080 Lexar Media, Inc. Jumpdrive Secure 
64MB
> Bus 004 Device 001: ID 0000:0000
> Bus 003 Device 002: ID 0bda:8150 Realtek Semiconductor Corp. RTL8150 
Fast 
> Ethernet Adapter
> Bus 003 Device 001: ID 0000:0000
> Bus 002 Device 001: ID 0000:0000
> 
> Thanks,
> Pascal
> 
> 
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