--- nono/vm/virtio_def.cpp	2026/04/29 17:05:25	1.1
+++ nono/vm/virtio_def.cpp	2026/04/29 17:05:29	1.1.1.2
@@ -16,8 +16,10 @@ VirtIO::DeviceIDStr(uint32 id)
 {
 	static const char * const idnames[] = {
 		"invalid",
-		"Network Card",	// 1
-		"Block Device",	// 2
+		"Network Device",	// 1
+		"Block Device",		// 2
+		"Console Device",	// 3
+		"Entropy Device",	// 4
 	};
 	assert(id < countof(idnames));
 	return idnames[id];
@@ -43,13 +45,29 @@ VirtIO::StatusBits(uint32 status)
 	}
 
 	std::string str;
-	for (int i = 0; i < countof(table); i++) {
-		if ((status & table[i].bit) != 0) {
-			str += ',';
-			str += table[i].name;
+	for (; status != 0; ) {
+		// lowest は立ってる一番下のビットだけ取り出したもの
+		decltype(status) lowest = status & (-status);
+
+		str += ',';
+		bool found = false;
+		for (int i = 0; i < countof(table); i++) {
+			if (table[i].bit == lowest) {
+				str += table[i].name;
+				found = true;
+				break;
+			}
+		}
+		if (found == false) {
+			str += string_format("b%u", __builtin_ctz(lowest));
 		}
+
+		status &= ~lowest;
 	}
 
+	if (str.empty()) {
+		return "<>";
+	}
 	str[0] = '<';
 	str += '>';
 	return str;