Add kernel parameters to bootloader section

Add kernel parameters to bootloader section.

Author: chcao

data/yam/agama/auto/lib/base.libsonnet

@@ -19,12 +19,3 @@
     sshPublicKey: 'fake public key to enable sshd and open firewall',
   },
 }
-
-{
-  stop_timeout():: {
-    stopOnBootMenu: true,
-  },
-  timeout():: {
-    timeout: 15,
-  },
-}

data/yam/agama/auto/template.libsonnet

@@ -1,5 +1,5 @@
-local base_lib = import 'lib/base.libsonnet';
 local addons_lib = import 'lib/addons.libsonnet';
+local base_lib = import 'lib/base.libsonnet';
 local dasd_lib = import 'lib/dasd.libsonnet';
 local iscsi_lib = import 'lib/iscsi.libsonnet';
 local scripts_post_lib = import 'lib/scripts_post.libsonnet';
@@ -11,6 +11,7 @@ local security_lib = import 'lib/security.libsonnet';
 
 function(bootloader=true,
          bootloader_timeout=false,
+         bootloader_extra_kernel_params='',
          dasd=false,
          extra_repositories=false,
          files=false,
@@ -31,8 +32,12 @@ function(bootloader=true,
          ssl_certificates=false,
          storage='',
          user=true) {
-  [if bootloader then 'bootloader']: base_lib.stop_timeout(),
-  [if bootloader_timeout then 'bootloader']: base_lib.timeout(),
+  [if bootloader || bootloader_timeout !='' ||
+    bootloader_extra_kernel_params != '' then 'bootloader']: std.prune({
+    stopOnBootMenu: if bootloader then true,
+    timeout: if bootloader_timeout then 15,
+    extraKernelParams: if bootloader_extra_kernel_params != '' then bootloader_extra_kernel_params,
+  }),
   [if dasd == true then 'dasd']: dasd_lib.dasd(),
   [if files == true then 'files']: base_lib['files'],
   [if iscsi == true then 'iscsi']: iscsi_lib.iscsi(),

schedule/yam/agama_extended_unattended.yaml

@@ -8,6 +8,7 @@ schedule:
   - installation/grub_test
   - installation/first_boot
   - yam/validate/validate_hostname
+  - yam/validate/validate_extra_kernel_params
   - yam/validate/validate_packages
   - yam/validate/validate_post_partitioning
   - yam/validate/validate_deployed_files

schedule/yam/agama_extended_unattended_ppc64le.yaml

@@ -8,6 +8,7 @@ schedule:
   - yam/agama/agama
   - installation/grub_test
   - installation/first_boot
+  - yam/validate/validate_extra_kernel_params
   - yam/validate/validate_packages
   - yam/validate/validate_post_partitioning
   - yam/validate/validate_deployed_files

schedule/yam/agama_extended_unattended_s390x.yaml

@@ -8,6 +8,7 @@ schedule:
   - yam/agama/agama
   - boot/reconnect_mgmt_console
   - installation/first_boot
+  - yam/validate/validate_extra_kernel_params
   - yam/validate/validate_packages
   - yam/validate/validate_post_partitioning
   - yam/validate/validate_deployed_files

tests/yam/validate/validate_extra_kernel_params.pm

@@ -0,0 +1,28 @@
+# SUSE's openQA tests
+#
+# Copyright 2025 SUSE LLC
+# SPDX-License-Identifier: FSFAP
+#
+# Summary: Validate the kernel param of processor.max_cstate=1
+# Maintainer: QE YaST and Migration (QE Yam) <qe-yam at suse de>
+
+use base "consoletest";
+use testapi;
+
+sub run {
+    select_console 'root-console';
+    my $output = script_output('cat /proc/cmdline');
+    my $options = get_var('AGAMA_PROFILE_OPTIONS');
+
+    my ($params_str) = $options =~ /bootloader_extra_kernel_params="([^"]*)"/;
+    my @params = split /,/, $params_str;
+
+    foreach my $param (@params) {
+        unless ($output =~ /\Q$param\E/) {
+            die "$param not found in kernel command line!";
+        }
+    }
+    record_info('Extra Kernel Params', "Extra kernel parameters are present: $params_str");
+}
+
+1;