--- /dev/null
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef __VMM_IO_H
+#define __VMM_IO_H
+
+
+#ifdef __V3VEE__
+
+#include <palacios/vmm_types.h>
+#include <palacios/vmm_util.h>
+
+
+struct guest_info;
+
+int v3_unhook_io_port(struct guest_info * info, uint_t port);
+
+
+/* External API */
+int v3_hook_io_port(struct guest_info * info, uint_t port,
+ int (*read)(ushort_t port, void * dst, uint_t length, void * priv_data),
+ int (*write)(ushort_t port, void * src, uint_t length, void * priv_data),
+ void * priv_data);
+
+
+
+
+
+
+struct vmm_io_hook;
+
+struct vmm_io_map {
+ uint_t num_ports;
+ struct vmm_io_hook * head;
+
+};
+
+
+void v3_init_vmm_io_map(struct guest_info * info);
+
+// FOREACH_IO_HOOK(vmm_io_map_t * io_map, vmm_io_hook_t * io_hook)
+#define FOREACH_IO_HOOK(io_map, io_hook) for (io_hook = (io_map).head; io_hook != NULL; io_hook = (io_hook)->next)
+
+
+struct vmm_io_hook {
+ ushort_t port;
+
+ // Reads data into the IO port (IN, INS)
+ int (*read)(ushort_t port, void * dst, uint_t length, void * priv_data);
+
+ // Writes data from the IO port (OUT, OUTS)
+ int (*write)(ushort_t port, void * src, uint_t length, void * priv_data);
+
+ void * priv_data;
+
+ struct vmm_io_hook * next;
+ struct vmm_io_hook * prev;
+
+};
+
+
+struct vmm_io_hook * v3_get_io_hook(struct vmm_io_map * io_map, uint_t port);
+
+
+void v3_print_io_map(struct vmm_io_map * io_map);
+
+
+
+
+void v3_outb(ushort_t port, uchar_t value);
+uchar_t v3_inb(ushort_t port);
+
+void v3_outw(ushort_t port, ushort_t value);
+ushort_t v3_inw(ushort_t port);
+
+void v3_outdw(ushort_t port, uint_t value);
+uint_t v3_indw(ushort_t port);
+
+
+
+#endif // !__V3VEE__
+
+
+
+
+
+#endif
