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