On Thu, 2016-08-18 at 20:43 +0800, Kevin Zhao wrote: > What's the minimum version of Qemu that support virito-1.0? > Does Qemu 2.6 works?
2.6 definitely has virtio 1.0 support, however libvirt does not yet allow you to control whether a device uses 0.9, 1.0 or both. The default for 2.6 should be both IIRC. > Now I will manually add the slots and bus to pcie. Because > I am not familiar with it, if it convenient, could you give > me an available xml file which PCIE disk and PCIE > net device can work for machine virt ? The XML you're looking for is at the end of this message. Note that a Fedora 24 guest configured this way will not boot at all if the machine type is virt-2.6; on the other hand, an identically-configured RHEL 7.3 guest will boot even with virt-2.6, but both the disk and the network adapter will be legacy PCI instead of PCIe. <domain type='kvm'> <name>abologna-f24</name> <uuid>f6d0428b-a034-4c4e-8ef2-f12f6aa9cab0</uuid> <memory unit='KiB'>2097152</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>4</vcpu> <os> <type arch='aarch64' machine='virt-2.7'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/AAVMF/AAVMF_CODE.fd</loader> <nvram>/var/lib/libvirt/qemu/nvram/abologna-f24_VARS.fd</nvram> <boot dev='hd'/> </os> <features> <gic version='2'/> </features> <cpu mode='host-passthrough'/> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/abologna-qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/abologna-f24.qcow2'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </disk> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='1' port='0x8'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </controller> <controller type='pci' index='2' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='2' port='0x10'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </controller> <controller type='virtio-serial' index='0'> <address type='virtio-mmio'/> </controller> <interface type='network'> <mac address='52:54:00:10:07:41'/> <source network='default'/> <model type='virtio'/> <rom bar='off'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <source mode='bind'/> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> </devices> </domain> -- Andrea Bolognani / Red Hat / Virtualization
