以下示例说明如何使用 ldm add-io 和 ldm set-io 命令启用 I/O 虚拟化。
以下 SPARC T4-2 I/O 配置显示总线 pci_1 已从 primary 域中删除。
primary# ldm list-io NAME TYPE BUS DOMAIN STATUS ---- ---- --- ------ ------ pci_0 BUS pci_0 primary IOV pci_1 BUS pci_1 niu_0 NIU niu_0 primary niu_1 NIU niu_1 primary /SYS/MB/PCIE0 PCIE pci_0 primary OCC /SYS/MB/PCIE2 PCIE pci_0 primary OCC /SYS/MB/PCIE4 PCIE pci_0 primary OCC /SYS/MB/PCIE6 PCIE pci_0 primary EMP /SYS/MB/PCIE8 PCIE pci_0 primary EMP /SYS/MB/SASHBA PCIE pci_0 primary OCC /SYS/MB/NET0 PCIE pci_0 primary OCC /SYS/MB/PCIE1 PCIE pci_1 UNK /SYS/MB/PCIE3 PCIE pci_1 UNK /SYS/MB/PCIE5 PCIE pci_1 UNK /SYS/MB/PCIE7 PCIE pci_1 UNK /SYS/MB/PCIE9 PCIE pci_1 UNK /SYS/MB/NET2 PCIE pci_1 UNK /SYS/MB/NET0/IOVNET.PF0 PF pci_0 primary /SYS/MB/NET0/IOVNET.PF1 PF pci_0 primary
以下列表显示来宾域处于绑定状态：
primary# ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL NORM UPTIME primary active -n-cv- UART 8 8G 0.6% 0.6% 8m rootdom1 bound ------ 5000 8 4G ldg2 bound ------ 5001 8 4G ldg3 bound ------ 5002 8 4G
以下 ldm add-io 命令将 pci_1 总线添加到 rootdom1 域，并为该总线启用 I/O 虚拟化。ldm start 命令启动 rootdom1 域。
primary# ldm add-io iov=on pci_1 rootdom1 primary# ldm start rootdom1 LDom rootdom1 started
如果已将指定的 PCIe 总线分配给某个根域，请使用 ldm set-io 命令启用 I/O 虚拟化。
primary# ldm start-reconf rootdom1 primary# ldm set-io iov=on pci_1 primary# ldm stop-domain -r rootdom1
此根域必须正在运行其 OS，您才能配置 I/O 设备。如果未将来宾域设置为自动引导，请连接到 rootdom1 来宾域的控制台，然后引导 rootdom1 根域的 OS。
primary# telnet localhost 5000 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connecting to console "rootdom1" in group "rootdom1" .... Press ~? for control options .. ok> boot ... primary#
以下命令表明 pci_1 PCIe 总线及其子项现在属于 rootdom1 根域。
primary# ldm list-io NAME TYPE BUS DOMAIN STATUS ---- ---- --- ------ ------ pci_0 BUS pci_0 primary IOV pci_1 BUS pci_1 rootdom1 IOV niu_0 NIU niu_0 primary niu_1 NIU niu_1 primary /SYS/MB/PCIE0 PCIE pci_0 primary OCC /SYS/MB/PCIE2 PCIE pci_0 primary OCC /SYS/MB/PCIE4 PCIE pci_0 primary OCC /SYS/MB/PCIE6 PCIE pci_0 primary EMP /SYS/MB/PCIE8 PCIE pci_0 primary EMP /SYS/MB/SASHBA PCIE pci_0 primary OCC /SYS/MB/NET0 PCIE pci_0 primary OCC /SYS/MB/PCIE1 PCIE pci_1 rootdom1 OCC /SYS/MB/PCIE3 PCIE pci_1 rootdom1 OCC /SYS/MB/PCIE5 PCIE pci_1 rootdom1 OCC /SYS/MB/PCIE7 PCIE pci_1 rootdom1 OCC /SYS/MB/PCIE9 PCIE pci_1 rootdom1 EMP /SYS/MB/NET2 PCIE pci_1 rootdom1 OCC /SYS/MB/NET0/IOVNET.PF0 PF pci_0 primary /SYS/MB/NET0/IOVNET.PF1 PF pci_0 primary /SYS/MB/PCIE5/IOVNET.PF0 PF pci_1 rootdom1 /SYS/MB/PCIE5/IOVNET.PF1 PF pci_1 rootdom1 /SYS/MB/NET2/IOVNET.PF0 PF pci_1 rootdom1 /SYS/MB/NET2/IOVNET.PF1 PF pci_1 rootdom1