systemd: Introduce systemd_service_limitmemlock_extra_in

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

src/ch/meson.build

@@ -64,6 +64,7 @@ if conf.has('WITH_CH')
       files('virtchd.service.extra.in'),
       systemd_service_limitnofile_extra_in,
       systemd_service_tasksmax_extra_in,
+      systemd_service_limitmemlock_extra_in,
     ],
   }
 

src/ch/virtchd.service.extra.in

@@ -5,9 +5,3 @@ After=remote-fs.target
 
 [Service]
 KillMode=process
-# With cgroups v2 there is no devices controller anymore, we have to use
-# eBPF to control access to devices. In order to do that we create a eBPF
-# hash MAP which locks memory. The default map size for 64 devices together
-# with program takes 12k per guest. After rounding up we will get 64M to
-# support 4096 guests.
-LimitMEMLOCK=64M

src/lxc/meson.build

@@ -169,6 +169,7 @@ if conf.has('WITH_LXC')
       files('virtlxcd.service.extra.in'),
       systemd_service_limitnofile_extra_in,
       systemd_service_tasksmax_extra_in,
+      systemd_service_limitmemlock_extra_in,
     ],
   }
 

src/lxc/virtlxcd.service.extra.in

@@ -5,9 +5,3 @@ After=remote-fs.target
 
 [Service]
 KillMode=process
-# With cgroups v2 there is no devices controller anymore, we have to use
-# eBPF to control access to devices. In order to do that we create a eBPF
-# hash MAP which locks memory. The default map size for 64 devices together
-# with program takes 12k per guest. After rounding up we will get 64M to
-# support 4096 guests.
-LimitMEMLOCK=64M

src/meson.build

@@ -196,6 +196,7 @@ guest_unit_files = []
 #   can be used in service_extra_in/socket_extra_in (see below)
 systemd_service_limitnofile_extra_in = files('virtd.service.limitnofile.extra.in')
 systemd_service_tasksmax_extra_in = files('virtd.service.tasksmax.extra.in')
+systemd_service_limitmemlock_extra_in = files('virtd.service.limitmemlock.extra.in')
 
 # virt_daemon_units:
 #   generate libvirt daemon systemd unit files

src/qemu/meson.build

@@ -188,6 +188,7 @@ if conf.has('WITH_QEMU')
       files('virtqemud.service.extra.in'),
       systemd_service_limitnofile_extra_in,
       systemd_service_tasksmax_extra_in,
+      systemd_service_limitmemlock_extra_in,
     ],
   }
 

src/qemu/virtqemud.service.extra.in

@@ -9,12 +9,6 @@ After=remote-fs.target
 
 [Service]
 KillMode=process
-# With cgroups v2 there is no devices controller anymore, we have to use
-# eBPF to control access to devices. In order to do that we create a eBPF
-# hash MAP which locks memory. The default map size for 64 devices together
-# with program takes 12k per guest. After rounding up we will get 64M to
-# support 4096 guests.
-LimitMEMLOCK=64M
 
 [Install]
 Also=virtlogd.socket

src/remote/libvirtd.service.in

@@ -33,12 +33,6 @@ ExecStart=@sbindir@/libvirtd $LIBVIRTD_ARGS
 ExecReload=/bin/kill -HUP $MAINPID
 KillMode=process
 Restart=on-failure
-# With cgroups v2 there is no devices controller anymore, we have to use
-# eBPF to control access to devices.  In order to do that we create a eBPF
-# hash MAP which locks memory.  The default map size for 64 devices together
-# with program takes 12k per guest.  After rounding up we will get 64M to
-# support 4096 guests.
-LimitMEMLOCK=64M
 
 [Install]
 WantedBy=multi-user.target

src/remote/meson.build

@@ -194,6 +194,7 @@ if conf.has('WITH_REMOTE')
       'service_extra_in': [
         systemd_service_limitnofile_extra_in,
         systemd_service_tasksmax_extra_in,
+        systemd_service_limitmemlock_extra_in,
       ],
       'name': 'legacy monolithic',
       'sockets': [ 'main', 'ro', 'admin', 'tcp', 'tls' ],

src/virtd.service.limitmemlock.extra.in

@@ -0,0 +1,7 @@
+[Service]
+# With cgroups v2 there is no devices controller anymore, we have to use
+# eBPF to control access to devices. In order to do that we create a eBPF
+# hash MAP which locks memory. The default map size for 64 devices together
+# with program takes 12k per guest. After rounding up we will get 64M to
+# support 4096 guests.
+LimitMEMLOCK=64M