1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *    Hypervisor filesystem for Linux on s390.
 4 *
 5 *    Copyright IBM Corp. 2006
 6 *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
 7 */
 8
 9#ifndef _HYPFS_H_
10#define _HYPFS_H_
11
12#include <linux/fs.h>
13#include <linux/types.h>
14#include <linux/debugfs.h>
15#include <linux/workqueue.h>
16#include <linux/kref.h>
17#include <asm/hypfs.h>
18
19#define REG_FILE_MODE    0440
20#define UPDATE_FILE_MODE 0220
21#define DIR_MODE         0550
22
23extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
24
25extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
26				       __u64 value);
27
28extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
29				       char *string);
30
31/* LPAR Hypervisor */
32extern int hypfs_diag_init(void);
33extern void hypfs_diag_exit(void);
34extern int hypfs_diag_create_files(struct dentry *root);
35
36/* VM Hypervisor */
37extern int hypfs_vm_init(void);
38extern void hypfs_vm_exit(void);
39extern int hypfs_vm_create_files(struct dentry *root);
40
41/* VM diagnose 0c */
42int hypfs_diag0c_init(void);
43void hypfs_diag0c_exit(void);
44
45/* Set Partition-Resource Parameter */
46void hypfs_sprp_init(void);
47void hypfs_sprp_exit(void);
48
49int __hypfs_fs_init(void);
50
51static inline int hypfs_fs_init(void)
52{
53	if (IS_ENABLED(CONFIG_S390_HYPFS_FS))
54		return __hypfs_fs_init();
55	return 0;
56}
57
58/* debugfs interface */
59struct hypfs_dbfs_file;
60
61struct hypfs_dbfs_data {
62	void			*buf;
63	void			*buf_free_ptr;
64	size_t			size;
65	struct hypfs_dbfs_file	*dbfs_file;
66};
67
68struct hypfs_dbfs_file {
69	const char	*name;
70	int		(*data_create)(void **data, void **data_free_ptr,
71				       size_t *size);
72	void		(*data_free)(const void *buf_free_ptr);
73	long		(*unlocked_ioctl) (struct file *, unsigned int,
74					   unsigned long);
75
76	/* Private data for hypfs_dbfs.c */
77	struct mutex		lock;
78	struct dentry		*dentry;
79};
80
 
81extern void hypfs_dbfs_exit(void);
82extern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
83extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
84
85#endif /* _HYPFS_H_ */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *    Hypervisor filesystem for Linux on s390.
 4 *
 5 *    Copyright IBM Corp. 2006
 6 *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
 7 */
 8
 9#ifndef _HYPFS_H_
10#define _HYPFS_H_
11
12#include <linux/fs.h>
13#include <linux/types.h>
14#include <linux/debugfs.h>
15#include <linux/workqueue.h>
16#include <linux/kref.h>
17#include <asm/hypfs.h>
18
19#define REG_FILE_MODE    0440
20#define UPDATE_FILE_MODE 0220
21#define DIR_MODE         0550
22
23extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
24
25extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
26				       __u64 value);
27
28extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
29				       char *string);
30
31/* LPAR Hypervisor */
32extern int hypfs_diag_init(void);
33extern void hypfs_diag_exit(void);
34extern int hypfs_diag_create_files(struct dentry *root);
35
36/* VM Hypervisor */
37extern int hypfs_vm_init(void);
38extern void hypfs_vm_exit(void);
39extern int hypfs_vm_create_files(struct dentry *root);
40
41/* VM diagnose 0c */
42int hypfs_diag0c_init(void);
43void hypfs_diag0c_exit(void);
44
45/* Set Partition-Resource Parameter */
46void hypfs_sprp_init(void);
47void hypfs_sprp_exit(void);
48
 
 
 
 
 
 
 
 
 
49/* debugfs interface */
50struct hypfs_dbfs_file;
51
52struct hypfs_dbfs_data {
53	void			*buf;
54	void			*buf_free_ptr;
55	size_t			size;
56	struct hypfs_dbfs_file	*dbfs_file;
57};
58
59struct hypfs_dbfs_file {
60	const char	*name;
61	int		(*data_create)(void **data, void **data_free_ptr,
62				       size_t *size);
63	void		(*data_free)(const void *buf_free_ptr);
64	long		(*unlocked_ioctl) (struct file *, unsigned int,
65					   unsigned long);
66
67	/* Private data for hypfs_dbfs.c */
68	struct mutex		lock;
69	struct dentry		*dentry;
70};
71
72extern void hypfs_dbfs_init(void);
73extern void hypfs_dbfs_exit(void);
74extern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
75extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
76
77#endif /* _HYPFS_H_ */