2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2010, Peter Dinda (pdinda@cs.northwestern.edu>
11 * Copyright (c) 2010, The V3VEE Project <http://www.v3vee.org>
12 * All rights reserved.
14 * Author: Peter Dinda <pdinda@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
21 #ifndef __VMM_FILE_H__
22 #define __VMM_FILE_H__
24 #include <palacios/vmm.h>
28 typedef void * v3_file_t;
30 int v3_mkdir(char * path, uint16_t permissions, uint8_t recursive);
33 v3_file_t v3_file_open(struct v3_vm_info * vm, char * path, uint8_t mode);
34 int v3_file_close(v3_file_t file);
35 uint64_t v3_file_size(v3_file_t file);
37 uint64_t v3_file_read(v3_file_t file, uint8_t * buf, uint64_t len, uint64_t off);
38 uint64_t v3_file_write(v3_file_t file, uint8_t * buf, uint64_t len, uint64_t off);
42 #define FILE_OPEN_MODE_READ (1 << 0)
43 #define FILE_OPEN_MODE_WRITE (1 << 1)
44 #define FILE_OPEN_MODE_CREATE (1 << 2)
46 struct v3_file_hooks {
47 int (*mkdir)(const char * path, unsigned short perms, int recursive);
49 void * (*open)(const char * path, int mode, void * host_data);
50 int (*close)(void * fd);
52 unsigned long long (*size)(void * fd);
54 // blocking reads and writes
55 unsigned long long (*read)(void * fd, void * buffer, unsigned long long length, unsigned long long offset);
56 unsigned long long (*write)(void * fd, void * buffer, unsigned long long length, unsigned long long offset);
61 extern void V3_Init_File(struct v3_file_hooks * hooks);