Hi All, We are trying to use vfio-pci. We have following - intel_iommu=on in bios - it shows in /proc/cmdline
[root@vflac2-kvm ~]# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.10.0-957.1.3.el7.x86_64 root=/dev/mapper/c7--kvm-root ro crashkernel=auto rd.lvm.lv=c7-kvm/root rd.lvm.lv=c7-kvm/swap rhgb quiet *intel_iommu=on *isolcpus=2,3,6,7 [root@vflac2-kvm ~]# dmesg | grep IOM *[ 0.000000] DMAR: IOMMU enabled* [root@vflac2-kvm ~]# uname -mrs Linux 3.10.0-957.1.3.el7.x86_64 x86_64 [root@vflac2-kvm ~]# ls /sys/kernel/iommu_groups/ *[root@vflac2-kvm ~]# ls -al /sys/kernel/iommu_groups/total 0* 04:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01) 04:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01) 04:10.0 Ethernet controller: Intel Corporation X540 Ethernet Controller Virtual Function (rev 01) 04:10.2 Ethernet controller: Intel Corporation X540 Ethernet Controller Virtual Function (rev 01) 05:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02) 05:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02) Can u suggest what could wrong ? We are seeing no iommu_groups getting created. Thanks, Regards, Venu
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