Problems with PCI-passthrough in 3.1

[moarph]

Hello,

I get strange problems when trying to add a TV-card to my guest.

The error is:

# qm start 111
kvm: -device pci-assign,host=07:05.0,id=hostpci0,bus=pci.0,addr=0x10: PCI region 0 at address 0xfe600000 has size 0x200, which is not a multiple of 4K.  You might experience some performance hit due to that.
kvm: -device pci-assign,host=07:05.0,id=hostpci0,bus=pci.0,addr=0x10: Failed to assign device "hostpci0" : Invalid argument
kvm: -device pci-assign,host=07:05.0,id=hostpci0,bus=pci.0,addr=0x10: Device 'kvm-pci-assign' could not be initialized

IOMMU is enabled:

# dmesg | grep -e DMAR -e AMD-Vi
AMD-Vi: Enabling IOMMU at 0000:00:00.2 cap 0x40
AMD-Vi: Initialized for Passthrough Mode

lspci for this device:

07:05.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
    Subsystem: Technotrend Systemtechnik GmbH S2-3200
    Flags: medium devsel, IRQ 20
    Memory at fe600000 (32-bit, non-prefetchable) [size=512]
    Kernel driver in use: pci-stub

Any idea? 'Invalid argument' didn't get me any results.