On Thu, 6 Dec 2018 10:41:26 +0500 Ramzah Rehman <ramzahreh...@gmail.com> wrote:
> I am trying to bind an interface eth0 to vfio driver. I have made sure > iommu is enabled in grub and kernel. I have loaded the module vfio-pci. Ran > following commands > > #modprobe vfio-pci > #chmod a+x /dev/vfio > #chmod 0666 /dev/vfio/* > #export DPDK_DIR=/usr/src/dpdk-stable-17.11.4 > #sudo $DPDK_DIR/usertools/dpdk-devbind.py --bind=vfio-pci 02:01.0 > > I got following error: > > Error: bind failed for 0000:02:01.0 - Cannot bind to driver vfio-pci > > I checked the error in dmesg: > > Got : > > [ 1815.793823] vfio-pci: probe of 0000:02:01.0 failed with error -22 > > let me know the reason. > > Best Regards, > Ramzah Rehman Check other threads. For VFIO to work you need at a minimum: * Hardware with IOMMU * VT-d enabled in BIOS * Device on PCI not sharing IOMMU-group See vfio.txt in Linux kernel documentation for a full explanation. https://www.kernel.org/doc/Documentation/vfio.txt