kvm tools: Add basic help when starting 'kvm' without args

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

diff --git a/tools/kvm/builtin-help.c b/tools/kvm/builtin-help.c
index e70044abc26bc3ae4b1bcce137031eac1d3468b9..fddbed1172ece76560c12f2d2b4443c78f7182fc 100644 (file)
--- a/tools/kvm/builtin-help.c
+++ b/tools/kvm/builtin-help.c
@@ -34,7 +34,8 @@ static void list_common_cmds_help(void)
 
 static void kvm_help(void)
 {
-       printf("\n usage: %s\n\n", kvm_usage_string);
+       printf("\n To start a simple non-privileged shell run 'kvm run'\n\n"
+               "usage: %s\n\n", kvm_usage_string);
        list_common_cmds_help();
        printf("\n %s\n\n", kvm_more_info_string);
 }