1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Hypervisor filesystem for Linux on s390. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright IBM Corp. 2006 6*4882a593Smuzhiyun * Author(s): Michael Holzheu <holzheu@de.ibm.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef _HYPFS_H_ 10*4882a593Smuzhiyun #define _HYPFS_H_ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/fs.h> 13*4882a593Smuzhiyun #include <linux/types.h> 14*4882a593Smuzhiyun #include <linux/debugfs.h> 15*4882a593Smuzhiyun #include <linux/workqueue.h> 16*4882a593Smuzhiyun #include <linux/kref.h> 17*4882a593Smuzhiyun #include <asm/hypfs.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define REG_FILE_MODE 0440 20*4882a593Smuzhiyun #define UPDATE_FILE_MODE 0220 21*4882a593Smuzhiyun #define DIR_MODE 0550 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name); 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name, 26*4882a593Smuzhiyun __u64 value); 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name, 29*4882a593Smuzhiyun char *string); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun /* LPAR Hypervisor */ 32*4882a593Smuzhiyun extern int hypfs_diag_init(void); 33*4882a593Smuzhiyun extern void hypfs_diag_exit(void); 34*4882a593Smuzhiyun extern int hypfs_diag_create_files(struct dentry *root); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* VM Hypervisor */ 37*4882a593Smuzhiyun extern int hypfs_vm_init(void); 38*4882a593Smuzhiyun extern void hypfs_vm_exit(void); 39*4882a593Smuzhiyun extern int hypfs_vm_create_files(struct dentry *root); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* VM diagnose 0c */ 42*4882a593Smuzhiyun int hypfs_diag0c_init(void); 43*4882a593Smuzhiyun void hypfs_diag0c_exit(void); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun /* Set Partition-Resource Parameter */ 46*4882a593Smuzhiyun void hypfs_sprp_init(void); 47*4882a593Smuzhiyun void hypfs_sprp_exit(void); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* debugfs interface */ 50*4882a593Smuzhiyun struct hypfs_dbfs_file; 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun struct hypfs_dbfs_data { 53*4882a593Smuzhiyun void *buf; 54*4882a593Smuzhiyun void *buf_free_ptr; 55*4882a593Smuzhiyun size_t size; 56*4882a593Smuzhiyun struct hypfs_dbfs_file *dbfs_file; 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun struct hypfs_dbfs_file { 60*4882a593Smuzhiyun const char *name; 61*4882a593Smuzhiyun int (*data_create)(void **data, void **data_free_ptr, 62*4882a593Smuzhiyun size_t *size); 63*4882a593Smuzhiyun void (*data_free)(const void *buf_free_ptr); 64*4882a593Smuzhiyun long (*unlocked_ioctl) (struct file *, unsigned int, 65*4882a593Smuzhiyun unsigned long); 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun /* Private data for hypfs_dbfs.c */ 68*4882a593Smuzhiyun struct mutex lock; 69*4882a593Smuzhiyun struct dentry *dentry; 70*4882a593Smuzhiyun }; 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun extern void hypfs_dbfs_init(void); 73*4882a593Smuzhiyun extern void hypfs_dbfs_exit(void); 74*4882a593Smuzhiyun extern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df); 75*4882a593Smuzhiyun extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df); 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun #endif /* _HYPFS_H_ */ 78