diff --git a/rpm/kernel-obs-build.spec.in b/rpm/kernel-obs-build.spec.in
index de359e6..238d65b 100644
--- a/rpm/kernel-obs-build.spec.in
+++ b/rpm/kernel-obs-build.spec.in
@@ -168,6 +168,14 @@ install -d -m 0755 %{buildroot}
 cp -v /boot/%{kernel_name}-*%{kernel_flavor} %{buildroot}/.build.kernel.kvm
 cp -v /tmp/initrd.kvm %{buildroot}/.build.initrd.kvm
 
+# inform worker kernel parameters to invoke
+CMDLINE="quiet panic=1 elevator=noop nmi_watchdog=0 rw rd.driver.pre=binfmt_misc"
+%if 0%{?suse_version} && 0%{?suse_version} < 1315
+# kvmclock has always been disabled for old kernels, keep it for historic compatibility
+CMDLINE+=" no-kvmclock"
+%endif
+echo "$CMDLINE" > %{buildroot}/.build.cmdline.kvm
+
 # inform worker about availability of virtio-serial
 touch %{buildroot}/.build.console.kvm
 if grep -qx CONFIG_VIRTIO_CONSOLE=y /boot/config-*%{kernel_flavor} ; then
@@ -179,9 +187,10 @@ fi
 uname -m > %{buildroot}/.build.hostarch.kvm
 
 %files
-/.build.kernel.*
-/.build.initrd.*
-/.build.hostarch.*
+/.build.cmdline.*
 /.build.console.*
+/.build.hostarch.*
+/.build.initrd.*
+/.build.kernel.*
 
 %changelog