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11.8.

11.8.1. 
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图 11.1. 

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[D]

11.8.2. 
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  • # lspci -v
[...]
02:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
	Subsystem: Intel Corporation Gigabit ET Dual Port Server Adapter
	Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
	Memory at fcba0000 (32-bit, non-prefetchable) [size=128K]
[...]
	Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
	Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
	Kernel driver in use: igb
	Kernel modules: igb
[...]
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  • # ip link set eth1 up
# ip link show eth1
8: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT qlen 1000
   link/ether a0:36:9f:8f:3f:b8 brd ff:ff:ff:ff:ff:ff
   vf 0 MAC 00:00:00:00:00:00, spoof checking on, link-state auto
   vf 1 MAC 00:00:00:00:00:00, spoof checking on, link-state auto
   vf 2 MAC 00:00:00:00:00:00, spoof checking on, link-state auto
   vf 3 MAC 00:00:00:00:00:00, spoof checking on, link-state auto
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      1. # grubby --args="intel_iommu=on iommu=pt" --update-kernel=ALL
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      1. # grubby --args="iommu=pt" --update-kernel=ALL
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  1. # cat /sys/class/net/eth1/device/sriov_totalvfs
7
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  2. # echo VF-number > /sys/class/net/network-interface/device/sriov_numvfs
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    # echo 2 > /sys/class/net/eth1/device/sriov_numvfs
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  3. # lspci | grep Ethernet
82:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)
82:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)
82:10.0 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01)
82:10.2 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01)
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  4. ACTION=="add", SUBSYSTEM=="net", ENV{ID_NET_DRIVER}=="ixgbe", ATTR{device/sriov_numvfs}="2"
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    警告

  5. # virsh attach-interface testguest1 hostdev 0000:82:10.0 --managed --live --config
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11.8.3. 
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