Check for virtualization flag and kvm group

1 files changed, 18 insertions, 6 deletions

diff --git a/kvmx b/kvmx
index e639879..1718ac5 100755
--- a/kvmx
+++ b/kvmx
@@ -200,12 +200,24 @@ function __kvmx_initialize {
 
     mkdir -p $STATE_DIR $LOG_DIR
 
-    if [ ! -e "$image" ] && [ "$ACTION" != "up" ]           && [ "$ACTION" != "provision" ] && [ "$ACTION" != "purge" ]   \
-                         && [ "$ACTION" != "destroy" ]      && [ "$ACTION" != "install" ]   && [ "$ACTION" != "config" ]  \
-                         && [ "$ACTION" != "config_unset" ] && [ "$ACTION" != "create" ]    && [ "$ACTION" != "shell" ]   \
-                         && [ "$ACTION" != "boot" ]; then
-      echo "$BASENAME: file not found: $image"
-      exit 1
+    # Additional checks
+    if [ "$ACTION" != "up" ]           && [ "$ACTION" != "provision" ] && [ "$ACTION" != "purge" ]  && \
+       [ "$ACTION" != "destroy" ]      && [ "$ACTION" != "install" ]   && [ "$ACTION" != "config" ] && \
+       [ "$ACTION" != "config_unset" ] && [ "$ACTION" != "create" ]    && [ "$ACTION" != "shell" ]  && \
+       [ "$ACTION" != "boot" ]; then
+      if [ ! -e "$image" ]; then
+        echo "$BASENAME: file not found: $image"
+        exit 1
+      fi
+
+      # See http://www.linux-kvm.org/page/FAQ
+      if ! egrep -q '^flags.*(vmx|svm)' /proc/cpuinfo; then
+        echo "$BASENAME: WARNING: Intel VT or AMD-V not present at /proc/cpuinfo, expect slow performance"
+      fi
+
+      if ! groups `whoami` | grep -q 'kvm'; then
+        echo "$BASENAME: WARNING: user `whoami` not in kvm group, expect slow performance"
+      fi
     fi
   fi
 }