I have HP ProLiant se1220 board with xeon x5670 cpus. All virtualization options enabled in bios and ve configured by tutorial. Here some terminal outputs i got
root@homelab:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.11.22-1-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on iommu=pt...
