diff --git a/devicemodel/core/main.c b/devicemodel/core/main.c
index bfd6d005a..07fa87413 100644
--- a/devicemodel/core/main.c
+++ b/devicemodel/core/main.c
@@ -162,6 +162,7 @@ usage(int code)
 		"       -i: ioc boot parameters\n"
 #ifdef CONFIG_VM_CFG
 		"       --vmcfg: build-in VM configurations\n"
+		"       --dump: show build-in VM configurations\n"
 #endif
 		"       --vsbl: vsbl file path\n"
 		"       --part_info: guest partition info file path\n"
@@ -710,6 +711,7 @@ enum {
 	CMD_OPT_PTDEV_NO_RESET,
 	CMD_OPT_DEBUGEXIT,
 	CMD_OPT_VMCFG,
+	CMD_OPT_DUMP,
 };
 
 static struct option long_options[] = {
@@ -742,6 +744,7 @@ static struct option long_options[] = {
 	/* Following cmd option only has long option */
 #ifdef CONFIG_VM_CFG
 	{"vmcfg",		required_argument,	0, CMD_OPT_VMCFG},
+	{"dump",		required_argument,	0, CMD_OPT_DUMP},
 #endif
 	{"vsbl",		required_argument,	0, CMD_OPT_VSBL},
 	{"part_info",		required_argument,	0, CMD_OPT_PART_INFO},
@@ -1047,6 +1050,10 @@ int main(int argc, char *argv[])
 			vmcfg = 1;
 			index = atoi(optarg);
 			break;
+		case CMD_OPT_DUMP:
+			index = atoi(optarg);
+			vmcfg_dump(index, long_options, optstr);
+			return 0;
 		default:
 			dm_options++;
 		}
diff --git a/devicemodel/include/vmcfg.h b/devicemodel/include/vmcfg.h
index 64e27d739..186f02aee 100644
--- a/devicemodel/include/vmcfg.h
+++ b/devicemodel/include/vmcfg.h
@@ -6,6 +6,8 @@
 #ifndef VMCFG_H
 #define VMCFG_H
 
+#include <getopt.h>
+
 struct vmcfg_arg {
 	char **argv;
 	int argc;
@@ -19,4 +21,5 @@ extern int num_args_buildin;
 extern struct vmcfg_arg mrb_vm1_args;
 
 void vmcfg_list(void);
+void vmcfg_dump(int index, struct option *long_options, char *optstr);
 #endif
diff --git a/devicemodel/vmcfg/vmcfg.c b/devicemodel/vmcfg/vmcfg.c
index c0a58e3c7..bf35b764c 100644
--- a/devicemodel/vmcfg/vmcfg.c
+++ b/devicemodel/vmcfg/vmcfg.c
@@ -6,6 +6,7 @@
 #include <vmcfg_config.h>
 #include <vmcfg.h>
 #include <stdio.h>
+#include <getopt.h>
 
 void vmcfg_list(void)
 {
@@ -18,6 +19,39 @@ void vmcfg_list(void)
 	}
 }
 
+void vmcfg_dump(int index, struct option *long_options, char *optstr)
+{
+	char **argv;
+	int argc;
+	int c, option_idx = 0;
+	int i = 1;
+
+	if ((index <= 0) || (index > num_args_buildin)) {
+		fprintf(stderr, "%s(%d) index should be 1~%d\n", __FUNCTION__,
+				index, num_args_buildin);
+		return;
+	}
+
+	if (args_buildin[index - 1]->setup)
+                args_buildin[index - 1]->setup();
+
+	argv = args_buildin[index - 1]->argv;
+	argc = args_buildin[index - 1]->argc;
+
+	printf("%s build-in args:\n", argv[argc - 1]);
+
+	optind = 0;
+
+	while ((c = getopt_long(argc, argv, optstr, long_options,
+		&option_idx)) != -1) {
+		if (optarg)
+			printf("%s %s\n", argv[i], optarg);
+		else
+			printf("%s\n", argv[i]);
+		i = optind;
+	}
+}
+
 static struct vmcfg_arg *vmcfg_buildin_args[] = {
 #ifdef CONFIG_MRB_VM1
 	&mrb_vm1_args,