On 2014/10/8 16:57, Martin Kletzander wrote: > On Wed, Oct 08, 2014 at 10:03:47AM +0800, Linhaifeng wrote: >> Hi, >> >> I want to use this qemu command '-object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on' with libvirt but i can't find the 'mem-path' and 'share' in the documentation. >> because the vhost-user backend based on 'share=on' parameter and libvirt support vhostuser i guess there maybe another way to support this parameter? >> >> this is my xml: >> <cpu> >> <numa> >> <cell id='0' cpus='0' memory='1048576' memAccess='shared'/> >> <cell id='1' cpus='1' memory='1048576' memAccess='shared'/> > > this memAccess='shared' is exactly what you need in order for the > share='on' to be appended. I wonder why it's not there. What libvirt > version are you using? -bash-4.2# virsh --version 1.2.7 > >> </numa> >> </cpu> >> <memoryBacking> >> <hugepages> >> <page size="2" unit="M" nodeset="0,1"/> >> </hugepages> >> <!--nosharepages/--> >> <!--locked/--> >> </memoryBacking> >> >> >> <interface type='vhostuser'> >> <mac address='52:54:00:3b:83:1a'/> >> <source type='unix' path='/path/port1' mode='client'/> >> <model type='virtio'/> >> </interface> >> <interface type='vhostuser'> >> <mac address='52:54:00:3b:83:1b'/> >> <source type='unix' path='/path/port2' mode='client'/> >> <model type='virtio'/> >> </interface> >> >> >> when i create the VM the qemu command is like this without 'share=on' parameter: >> -object memory-backend-file,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu,size=1024M,id=ram-node0 -numa node,nodeid=0,cpus=0,memdev=ram-node0 >> -object memory-backend-file,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu,size=1024M,id=ram-node1 -numa node,nodeid=1,cpus=1,memdev=ram-node1 >> >> _______________________________________________ >> libvirt-users mailing list >> libvirt-users@xxxxxxxxxx >> https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
