# NB we don't use socket activation. When libvirtd starts it will # spawn any virtual machines registered for autostart. We want this # to occur on every boot, regardless of whether any client connects # to a socket. Thus socket activation doesn't have any benefit [Unit] Description=Virtualization daemon Requires=virtlogd.socket Requires=virtlockd.socket Wants=systemd-machined.service Before=libvirt-guests.service After=network.target After=dbus.service After=iscsid.service After=apparmor.service After=local-fs.target After=remote-fs.target After=systemd-logind.service After=systemd-machined.service Documentation=man:libvirtd(8) Documentation=https://libvirt.org [Service] Type=notify EnvironmentFile=-/etc/sysconfig/libvirtd ExecStart=@sbindir@/libvirtd $LIBVIRTD_ARGS ExecReload=/bin/kill -HUP $MAINPID KillMode=process Restart=on-failure # At least 1 FD per guest, often 2 (eg qemu monitor + qemu agent). # eg if we want to support 4096 guests, we'll typically need 8192 FDs # If changing this, also consider virtlogd.service & virtlockd.service # limits which are also related to number of guests LimitNOFILE=8192 # The cgroups pids controller can limit the number of tasks started by # the daemon, which can limit the number of domains for some hypervisors. # A conservative default of 8 tasks per guest results in a TasksMax of # 32k to support 4096 guests. TasksMax=32768 [Install] WantedBy=multi-user.target Also=virtlockd.socket Also=virtlogd.socket