init: allow force loading of extra modules via the kernel command-line

Fixes #186
anatol · Sep 30, 2022 · 969320c · 969320c
1 parent 1d4a336
commit 969320c
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diff --git a/docs/manpage.md b/docs/manpage.md
@@ -136,6 +136,7 @@ Some parts of booster boot functionality can be modified with kernel boot parame
    If debug level is enabled then kmsg throttling gets disabled automatically.
  * `booster.debug` an obsolete option that is equivalent to `booster.log=debug,console`.
  * `quiet` Set booster init verbosity to minimum. This option is ignored if `booster.debug` or `booster.log` is set.
+ * `modules` a comma-separated list of extra kernel modules which should be force loaded.
  * `init=$PATH` path to user-space init binary. If not specified then default value `/sbin/init` is used.
 
 ## NOTES

diff --git a/init/cmdline.go b/init/cmdline.go
@@ -192,7 +192,13 @@ func parseParams(params string) error {
 			if err != nil {
 				return fmt.Errorf("root=%s: %v", value, err)
 			}
+		case "modules":
+			if (value == "") {
+				break
+			}
 
+			modules := strings.Split(value, ",")
+			config.ModulesForceLoad = append(config.ModulesForceLoad, modules...)
 		case "resume":
 			var err error
 			cmdResume, err = parseDeviceRef(value)