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Michael Holzheu24bbb1f2006-06-23 02:05:06 -07001/*
Michael Holzheu24bbb1f2006-06-23 02:05:06 -07002 * Hypervisor filesystem for Linux on s390.
3 *
Heiko Carstensa53c8fa2012-07-20 11:15:04 +02004 * Copyright IBM Corp. 2006
Michael Holzheu24bbb1f2006-06-23 02:05:06 -07005 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
6 */
7
8#ifndef _HYPFS_H_
9#define _HYPFS_H_
10
11#include <linux/fs.h>
12#include <linux/types.h>
Michael Holzheu57b28f62010-05-17 10:00:20 +020013#include <linux/debugfs.h>
Michael Holzheu2fcb3682011-01-05 12:47:43 +010014#include <linux/workqueue.h>
15#include <linux/kref.h>
Martin Schwidefsky07be0382014-01-24 09:18:52 +010016#include <asm/hypfs.h>
Michael Holzheu24bbb1f2006-06-23 02:05:06 -070017
18#define REG_FILE_MODE 0440
19#define UPDATE_FILE_MODE 0220
20#define DIR_MODE 0550
21
Al Viroa118cfd2013-07-19 18:05:21 +040022extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
Michael Holzheu24bbb1f2006-06-23 02:05:06 -070023
Al Viroa118cfd2013-07-19 18:05:21 +040024extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
Michael Holzheu24bbb1f2006-06-23 02:05:06 -070025 __u64 value);
26
Al Viroa118cfd2013-07-19 18:05:21 +040027extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
Michael Holzheu24bbb1f2006-06-23 02:05:06 -070028 char *string);
29
Michael Holzheu31cb4bd2007-02-05 21:18:29 +010030/* LPAR Hypervisor */
31extern int hypfs_diag_init(void);
32extern void hypfs_diag_exit(void);
Al Viroe334cf42013-07-19 17:10:21 +040033extern int hypfs_diag_create_files(struct dentry *root);
Michael Holzheu31cb4bd2007-02-05 21:18:29 +010034
35/* VM Hypervisor */
36extern int hypfs_vm_init(void);
Michael Holzheu57b28f62010-05-17 10:00:20 +020037extern void hypfs_vm_exit(void);
Al Virof78e41e2013-07-19 17:03:49 +040038extern int hypfs_vm_create_files(struct dentry *root);
Michael Holzheu31cb4bd2007-02-05 21:18:29 +010039
Martin Schwidefsky07be0382014-01-24 09:18:52 +010040/* Set Partition-Resource Parameter */
41int hypfs_sprp_init(void);
42void hypfs_sprp_exit(void);
43
Michael Holzheu2fcb3682011-01-05 12:47:43 +010044/* debugfs interface */
45struct hypfs_dbfs_file;
46
47struct hypfs_dbfs_data {
48 void *buf;
49 void *buf_free_ptr;
50 size_t size;
Justin P. Mattock6eab04a2011-04-08 19:49:08 -070051 struct hypfs_dbfs_file *dbfs_file;
Michael Holzheu2fcb3682011-01-05 12:47:43 +010052 struct kref kref;
53};
54
55struct hypfs_dbfs_file {
56 const char *name;
57 int (*data_create)(void **data, void **data_free_ptr,
58 size_t *size);
59 void (*data_free)(const void *buf_free_ptr);
Martin Schwidefsky07be0382014-01-24 09:18:52 +010060 long (*unlocked_ioctl) (struct file *, unsigned int,
61 unsigned long);
Michael Holzheu2fcb3682011-01-05 12:47:43 +010062
63 /* Private data for hypfs_dbfs.c */
64 struct hypfs_dbfs_data *data;
65 struct delayed_work data_free_work;
66 struct mutex lock;
67 struct dentry *dentry;
68};
69
70extern int hypfs_dbfs_init(void);
71extern void hypfs_dbfs_exit(void);
72extern int hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
73extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
74
Michael Holzheu24bbb1f2006-06-23 02:05:06 -070075#endif /* _HYPFS_H_ */