Refactor ignore_msrs_alert to make in non-blocking

quickemu

@@ -15,44 +15,20 @@ function ask_option_msrs() {
   fi
 }
 
-function ask_persist_msrs() {
-  ignore_msrs=$(cat /sys/module/kvm/parameters/ignore_msrs)
-  #Skip if already persisted, assuming initramfs rebuilt
-  grep -lq 'ignore_msrs=Y' /etc/modprobe.d/kvm.conf >/dev/null 2>&1 || \
-    if [ ${ignore_msrs} = "Y" ]; then
-    echo
-    echo "To make setting ignore_msrs a more persistant solution you may run the following:"
-    echo 'echo "options kvm ignore_msrs=Y" | sudo tee -a /etc/modprobe.d/kvm.conf && sudo update-initramfs -k all -u'
-    echo
-
-  while true ; do
-    read -p "Do you wish to set ignore_msrs at boot? (y/N)" bootrsp
-          case $bootrsp:0:1 in
-          [yY]* ) echo "options kvm ignore_msrs=Y" | sudo tee -a /etc/modprobe.d/kvm.conf && sudo update-initramfs -k all -u ; break;;
-          * ) break ;;
-
-      esac
-    done
-  fi
-}
-
 function ignore_msrs_alert() {
-  ignore_msrs=$(cat /sys/module/kvm/parameters/ignore_msrs)
-
-  if [ ${ignore_msrs} = "N" ]; then
-  # Some macos and windows installations need this to successfully boot
-    echo '
-    If you experience issues booting macos or windows like those mentioned in
-
-      https://github.com/wimpysworld/quickemu/issues/88
-
-    then you can try the provided solution as a temporary fix by executing:
-
-        "echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs"'
-
-    echo -n "I can do that for you now.  " ; ask_option_msrs
+  local ignore_msrs=""
+  if [ -e /sys/module/kvm/parameters/ignore_msrs ]; then
+    ignore_msrs=$(cat /sys/module/kvm/parameters/ignore_msrs)
+    if [ "${ignore_msrs}" == "N" ]; then
+      echo " - MSR:      WARNING! Ignoring unhandled Model-Specific Registers is disabled."
+      echo
+      echo "             echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs"
+      echo
+      echo "             If you are unable to run macOS or Windows VMs then run the above 👆"
+      echo "             This will enable ignoring of unhandled MSRs until you reboot the host."
+      echo "             You can make this change permenant by running: 'quickemu --ignore-msrs-always'"
+    fi
   fi
-  ask_persist_msrs
 }
 
 function disk_delete() {