31cb4bd31a
This is an extension of the already existing hypfs for LPAR (DIAG 204). Data returned by DIAG 2fc is exported using the s390_hypfs when Linux is running under z/VM. Information about cpus and memory is provided. Data is put into different virtual files which can be accessed from user space. All values are represented as ASCII strings Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
/*
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* arch/s390/hypfs/hypfs.h
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* Hypervisor filesystem for Linux on s390.
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*
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* Copyright (C) IBM Corp. 2006
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* Author(s): Michael Holzheu <holzheu@de.ibm.com>
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*/
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#ifndef _HYPFS_H_
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#define _HYPFS_H_
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#include <linux/fs.h>
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#include <linux/types.h>
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#define REG_FILE_MODE 0440
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#define UPDATE_FILE_MODE 0220
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#define DIR_MODE 0550
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extern struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
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const char *name);
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extern struct dentry *hypfs_create_u64(struct super_block *sb,
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struct dentry *dir, const char *name,
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__u64 value);
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extern struct dentry *hypfs_create_str(struct super_block *sb,
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struct dentry *dir, const char *name,
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char *string);
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/* LPAR Hypervisor */
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extern int hypfs_diag_init(void);
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extern void hypfs_diag_exit(void);
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extern int hypfs_diag_create_files(struct super_block *sb, struct dentry *root);
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/* VM Hypervisor */
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extern int hypfs_vm_init(void);
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extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
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#endif /* _HYPFS_H_ */
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