kvm tools: Improve 'lkvm {pause,resume}'s output

lkvm {pause,resume} do not give any feedback to user who uses these
commands in the console where the command run.

This patch makes the command output in the command console instead of
guest console.

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

builtin-pause.c

@@ -41,7 +41,15 @@ void kvm_pause_help(void)
 
 static int do_pause(const char *name, int sock)
 {
-	return kvm_ipc__send(sock, KVM_IPC_PAUSE);
+	int r;
+
+	r = kvm_ipc__send(sock, KVM_IPC_PAUSE);
+	if (r)
+		return r;
+
+	printf("Guest %s paused\n", name);
+
+	return 0;
 }
 
 int kvm_cmd_pause(int argc, const char **argv, const char *prefix)

builtin-resume.c

@@ -41,7 +41,15 @@ void kvm_resume_help(void)
 
 static int do_resume(const char *name, int sock)
 {
-	return kvm_ipc__send(sock, KVM_IPC_RESUME);
+	int r;
+
+	r = kvm_ipc__send(sock, KVM_IPC_RESUME);
+	if (r)
+		return r;
+
+	printf("Guest %s resumed\n", name);
+
+	return 0;
 }
 
 int kvm_cmd_resume(int argc, const char **argv, const char *prefix)

builtin-run.c

@@ -522,7 +522,6 @@ static void handle_pause(int fd, u32 type, u32 len, u8 *msg)
 	}
 
 	is_paused = !is_paused;
-	pr_info("Guest %s\n", is_paused ? "paused" : "resumed");
 }
 
 static void handle_vmstate(int fd, u32 type, u32 len, u8 *msg)