1) Включил в BIOS VT-d.
# dmesg | grep -e DMAR -e IOMMU
[ 0.000000] ACPI: DMAR 00000000df7880c0 00090 (v01 AMI OEMDMAR 00000001 MSFT 00000097)
[ 0.000000] Intel-IOMMU: enabled
[ 0.000000] Your BIOS is broken; DMAR reported at address fed90000 returns all ones!
[ 0.039253] DMAR: Host address width 36
[ 0.039255] DMAR: DRHD base: 0x000000fed90000 flags: 0x1
[ 0.039264] DMAR: parse DMAR table failure.
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address bus='0x07' slot='0x03' function='0x0'/>
</source>
</hostdev>
# virsh create test
error: Failed to create domain from test
error: internal error process exited while connecting to monitor: PCI region 1 at address 0xf7fff000 has size 0x100, which is not a multiple of 4K. You might experience some performance hit due to that.
No IOMMU found. Unable to assign device "hostdev0"
kvm: -device pci-assign,host=07:03.0,id=hostdev0,configfd=17,bus=pci.0,addr=0x2: Device 'pci-assign' could not be initialized
