re: Xenstored not finding gnttab during boot

[Pry Mar <pryorm09@xxxxxxxxx>]

the static service below should load xen kernel modules. Did you include the
systemd-modules-load.service file in your build?

Notice the xen-gntdev module.

Below I show a status check for xen-4.12 running in Ubuntu Bionic.

user@xen1804:~$ sudo systemctl status systemd-modules-load
* systemd-modules-load.service - Load Kernel Modules
   Loaded: loaded (/lib/systemd/system/systemd-modules-load.service;
static; vendor preset: enabled)
   Active: active (exited) since Fri 2021-01-15 12:30:37 PST; 2h 50min ago
     Docs: man:systemd-modules-load.service(8)
           man:modules-load.d(5)
  Process: 298 ExecStart=/lib/systemd/systemd-modules-load
(code=exited, status=0/SUCCESS)
 Main PID: 298 (code=exited, status=0/SUCCESS)

Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module 'xen_evtchn'
Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module 'xen_gntdev'
Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module
'xen_gntalloc'
Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module 'xen_blkback'
Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module 'xen_netback'
Jan 15 12:30:37 xen1804 systemd-modules-load[298]: Inserted module 'xen_pciback'
Jan 15 12:30:37 xen1804 systemd[1]: Started Load Kernel Modules.
Warning: Journal has been rotated since unit was started. Log output
is incomplete or unavailable.

cheers,
Prymar56
 ##xen-packaging on Freenode
 new build of xen-4.14.1 in Bullseye, lately in Freeze