Add kernel parameters to bootloader section

Author: chcao

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

@@ -1,7 +1,4 @@
 {
-  bootloader: {
-    stopOnBootMenu: true
-  },
   files: [{
      destination: '/usr/local/share/dummy.xml',
      url: 'dummy.xml'

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

@@ -0,0 +1,5 @@
+{
+  bootloader: {
+    extraKernelParams: 'processor.max_cstate=1,mem=999',
+    stopOnBootMenu: true
+}

data/yam/agama/auto/template.libsonnet

@@ -1,5 +1,6 @@
-local base_lib = import 'lib/base.libsonnet';
 local addons_lib = import 'lib/addons.libsonnet';
+local base_lib = import 'lib/base.libsonnet';
+local bootloader_lib = import 'lib/bootloader.libsonnet';
 local dasd_lib = import 'lib/dasd.libsonnet';
 local iscsi_lib = import 'lib/iscsi.libsonnet';
 local scripts_post_lib = import 'lib/scripts_post.libsonnet';
@@ -10,6 +11,7 @@ local storage_lib = import 'lib/storage.libsonnet';
 local security_lib = import 'lib/security.libsonnet';
 
 function(bootloader=false,
+         extra_kernelparams='',
          dasd=false,
          extra_repositories=false,
          files=false,
@@ -28,7 +30,10 @@ function(bootloader=false,
          ssl_certificates=false,
          storage='',
          user=true) {
-  [if bootloader == true then 'bootloader']: base_lib['bootloader'],
+  [if bootloader == true || extra_kernelparams != '' then 'bootloader']: std.prune({
+   stopOnBootMenu: if bootloader then true,
+   extraKernelParams: if extra_kernelparams != '' then extra_kernelparams,
+  }),
   [if dasd == true then 'dasd']: dasd_lib.dasd(),
   [if files == true then 'files']: base_lib['files'],
   [if iscsi == true then 'iscsi']: iscsi_lib.iscsi(),