mvm: Add ROM module

Signed-off-by: Chloe M. <chloe@mirocom.org>

mvm/core/rom.c

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2026 Mirocom Laboratories and MSP engineers.
+ * All Rights Reserved.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <errno.h>
+#include "mvm/rom.h"
+
+int
+mvm_rom_init(struct mvm_rom *rom, size_t cap)
+{
+    if (rom == NULL) {
+        return -1;
+    }
+
+    if (balloon_init(&rom->data, cap) < 0) {
+        return -1;
+    }
+
+    return 0;
+}
+
+void
+mvm_rom_free(struct mvm_rom *rom)
+{
+    if (rom == NULL) {
+        return;
+    }
+
+    balloon_free(&rom->data);
+}