Xen users - Nov 2008 - Problems with PCI Passthrough on PVM

Hi list,

I try to pass a Promise Ultra133 TX2 to a PVM.

On the PVM I can see the controller using lspci

"06:00.0 Mass storage controller: Promise Technology, Inc. 20269 (rev
02)"

But I cannot access /dev/hdaX because dmesg shows

"ide: Assuming 66MHz system bus speed for PIO modes
PDC20269: IDE controller at PCI slot 0000:06:00.0
PCI: Enabling device 0000:06:00.0 (0000 -> 0003)
PDC20269: chipset revision 2
PDC20269: ROM enabled at 0xffffc000
PDC20269: 100% native mode on irq 20
     ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:pio, hdb:pio
     ide1: BM-DMA at 0x1008-0x100f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: SAMSUNG HD300LD, ATA DISK drive
PM: Adding info for No Bus:ide0
ide0: Disabled unable to get IRQ 20.
ide0: failed to initialize IDE interface
Probing IDE interface ide1...
pnp: the driver ''ide'' has been registered
pnp: the driver ''i8042 kbd'' has been registered
pnp: the driver ''i8042 aux'' has been registered
pnp: the driver ''i8042 kbd'' has been unregistered
pnp: the driver ''i8042 aux'' has been unregistered"

My dom0 has no problems accessing this device, and the domU boots the  
same kernel and initrd.

The Kernel version is the latest stable from xen.

Can somebody tell me whats wrong?

Thank you and best regards


Ralf


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"Ralf Hornik Mailings" <ralf@best.homeunix.org> schreibte:
> Hi list,
>
> I try to pass a Promise Ultra133 TX2 to a PVM.
No hints/ideas/questions?

The same happens with USB bus:

usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v3.0
PCI: Enabling device 0000:00:1d.1 (0000 -> 0001)
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.1: request interrupt 22 failed
uhci_hcd 0000:00:1d.1: USB bus 1 deregistered
uhci_hcd 0000:00:1d.1: init 0000:00:1d.1 fail, -38
uhci_hcd: probe of 0000:00:1d.1 failed with error -38
Done.

However, when I do boot with the ubuntu hardy-xen kernel, both,  
Promise and USB, work glamorously.

So i believe its a common issue with the current xen kernel. Or have I  
forgot something in the kernel config...?

Ralf



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