Great ~ Thanks for your valuable information~ I will try with the xml and any update I will post here.
On 18 August 2016 at 21:51, Andrea Bolognani <abolo...@redhat.com> wrote: > 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 >