KVM option -pcidevice invalid



I’m trying to use VT-D and KVM but when i folow your post :
linux-kvm.org/page/How_to_as … T-d_in_KVM
And I try to assign a PCI with QEMU i get the folowing report :

invalid option -pcidevice

How to use this pcidevice assign ? It seems i have the 0.9.1 version of QEMU, would it be the issue ?

Thanks for your help !