[Xen-users] pcihide does not work anymore

[Mike Fröhner <mikefroehner@xxxxxx>]

Hello Guys,

I have successfully upgraded xen-3.x to xen-4.0 with new kernel 2.6.34 @ 
gentoo. I had a backup-vm with a pci-passthru of an usb-hub.
old working:
module (hd0,0)/vmlinuz-2.6.31-xen-r11 root=/dev/sda2 max_loop=255 
pciback.permissive pciback.hide=(00:1d.7)
new should working:
module (hd0,0)/vmlinuz-2.6.34-xen root=/dev/sda2 max_loop=255 
xen-pciback.permissive xen-pciback.hide=(00:1d.7)
But if I boot dom0 I still can see the pci device and if try to start 
the backup-vm (pci = [ '00:1d.7' ]) I got an error like:
Error: pci: PCI Backend and pci-stub don't own device 0000:00:1d.7.

linux # dmesg | grep '00:1d.7'
[    0.000000] Command line: root=/dev/sda2 max_loop=255 
xen-pciback.permissive xen-pciback.hide=(00:1d.7)
[    0.000000] Kernel command line: root=/dev/sda2 max_loop=255 
xen-pciback.permissive xen-pciback.hide=(00:1d.7)
[    0.287474] pci 0000:00:1d.7: reg 10: [mem 0xfadda000-0xfadda3ff]
[    0.287564] pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
[    0.287570] pci 0000:00:1d.7: PME# disabled
[    0.364988] pciback 0000:00:1d.7: probing...
[    3.694092] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) 
-> IRQ 23
[    3.695253] ehci_hcd 0000:00:1d.7: setting latency timer to 64
[    3.695258] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[    3.695790] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned 
bus number 2
[    3.696359] ehci_hcd 0000:00:1d.7: reset hcs_params 0x103206 dbg=1 
cc=3 pcc=2 ordered !ppc ports=6
[    3.696364] ehci_hcd 0000:00:1d.7: reset hcc_params 16871 thresh 7 
uframes 1024 64 bit addr
[    3.696421] ehci_hcd 0000:00:1d.7: debug port 1
[    3.696747] ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0 
ithresh=8 period=1024 Reset HALT
[    3.700657] ehci_hcd 0000:00:1d.7: cache line size of 256 is not 
supported
[    3.700660] ehci_hcd 0000:00:1d.7: supports USB remote wakeup
[    3.700681] ehci_hcd 0000:00:1d.7: irq 23, io mem 0xfadda000
[    3.701012] ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0 
ithresh=8 period=1024 Reset HALT
[    3.704891] ehci_hcd 0000:00:1d.7: init command 010001 (park)=0 
ithresh=1 period=1024 RUN
[    3.720956] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
[    3.729129] usb usb2: SerialNumber: 0000:00:1d.7
[    3.747839] ehci_hcd 0000:00:1d.7: HS companion for 0000:00:1d.0
[    3.752608] ehci_hcd 0000:00:1d.7: HS companion for 0000:00:1d.1
[    3.758009] ehci_hcd 0000:00:1d.7: HS companion for 0000:00:1d.2
[    3.830476] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803 
POWER sig=j CSC CONNECT
[    4.070792] ehci_hcd 0000:00:1d.7: port 6 high speed
[    4.070798] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001005 
POWER sig=se0 PE CONNECT
[    4.190294] ehci_hcd 0000:00:1d.7: port 6 high speed
[    4.190301] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001005 
POWER sig=se0 PE CONNECT

I checked all drivers in kernel0 and kernlU and i also checked 
xen-pci-passthru option in kernel0 (CONFIG_XEN_PCIDEV_BACKEND_PASS=y).
Any ideas?


Thanks!


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