freeze: add freeze_thaw test

Change-Id: I31db80b89adca9ac354a96ad21073b269d8a0e24

test/freeze_thaw/cmd/freeze.c

@@ -0,0 +1,44 @@
+/* freeze.c COPYRIGHT FUJITSU LIMITED 2019 */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include "ihk_host_user.h"
+
+int main(int argc, char **argv)
+{
+	int ret = 0;
+	int fd = -1;
+	char dev[128];
+	int mcosid;
+
+	if (argc < 2) {
+		printf("usage %s <osnum>\n", argv[0]);
+		ret = -1;
+		goto out;
+	}
+	mcosid = atoi(argv[1]);
+
+	sprintf(dev, "/dev/mcos%d", mcosid);
+	fd = open(dev, O_RDWR);
+	if (fd == -1) {
+		perror("open /dev/mcosN");
+		ret = -1;
+		goto out;
+	}
+
+	ret = ioctl(fd, IHK_OS_FREEZE, 0);
+	if (ret) {
+		perror("ioctl(freeze)");
+		ret = -1;
+		goto out;
+	}
+out:
+	if (fd != -1) {
+		close(fd);
+	}
+	return ret;
+}