dom0: sync dom0 clock more frequent; start it from init.d script

dom0/aux-tools/keep-dom0-clock-synced

@@ -1,7 +1,7 @@
 #!/bin/sh
 
-# 6h
-UPDATES_SLEEP=21600
+# 15m
+UPDATES_SLEEP=900
 UPDATES_VM=`qvm-get-updatevm`
 
 QREXEC_CLIENT=/usr/lib/qubes/qrexec_client
@@ -11,10 +11,12 @@ if [ -z "$UPDATES_VM" ]; then
     exit 1
 fi
 
-if ! xl domid "$UPDATES_VM" > /dev/null 2>&1; then
-    echo "UpdateVM not started, exiting!"
-    exit 1
-fi
+echo "Waiting for UpdateVM to be started"
+# Intentionally used xl domid here to check if domain is running (in case of
+# eg. stale qrexec socket)
+while ! [ -f /var/run/qubes/qrexec.`xl domid "$UPDATES_VM" 2>/dev/null` ]; do
+    sleep 1
+done
 
 (
 # Allow only one instance

dom0/init.d/qubes_core

@@ -50,6 +50,8 @@ start()
     MEMINFO_DELAY_USEC=100000
     /usr/lib/qubes/meminfo-writer $MEM_CHANGE_THRESHOLD_KB $MEMINFO_DELAY_USEC &
 
+    /usr/lib/qubes/keep-dom0-clock-synced > /var/log/qubes/dom0-clock-sync.log 2>&1 &
+
     touch /var/lock/subsys/qubes_core
     success
     echo

dom0/qubes-clock-watch.desktop

@@ -1,7 +0,0 @@
-[Desktop Entry]
-Name=Qubes Dom0 clock watch
-Comment=Keeps dom0 clock synced with UpdateVM
-Icon=qubes
-Exec=/usr/lib/qubes/keep-dom0-clock-synced
-Terminal=false
-Type=Application

rpm_spec/core-dom0.spec

@@ -167,7 +167,6 @@ install -m 0440 qubes.sudoers $RPM_BUILD_ROOT/etc/sudoers.d/qubes
 
 install -d $RPM_BUILD_ROOT/etc/xdg/autostart
 install -m 0644 qubes-guid.desktop $RPM_BUILD_ROOT/etc/xdg/autostart/
-install -m 0644 qubes-clock-watch.desktop $RPM_BUILD_ROOT/etc/xdg/autostart/
 
 mkdir -p $RPM_BUILD_ROOT/etc/dracut.conf.d
 cp dracut/dracut.conf.d/* $RPM_BUILD_ROOT/etc/dracut.conf.d/
@@ -358,7 +357,6 @@ fi
 /etc/yum.real.repos.d/qubes-cached.repo
 /etc/sudoers.d/qubes
 /etc/xdg/autostart/qubes-guid.desktop
-/etc/xdg/autostart/qubes-clock-watch.desktop
 /etc/security/limits.d/99-qubes.conf
 %dir /etc/dracut.conf.d/*
 %dir /usr/share/dracut/modules.d/