root/arch/s390/include/uapi/asm/hypfs.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Structures for hypfs interface
 *
 * Copyright IBM Corp. 2013
 *
 * Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
 */

#ifndef _ASM_HYPFS_H
#define _ASM_HYPFS_H

#include <linux/types.h>

/*
 * IOCTL for binary interface /sys/kernel/debug/diag_304
 */
struct hypfs_diag304 {
        __u32   args[2];
        __u64   data;
        __u64   rc;
} __attribute__((packed));

#define HYPFS_IOCTL_MAGIC 0x10

#define HYPFS_DIAG304 \
        _IOWR(HYPFS_IOCTL_MAGIC, 0x20, struct hypfs_diag304)

/*
 * Structures for binary interface /sys/kernel/debug/diag_0c
 */
struct hypfs_diag0c_hdr {
        __u64   len;            /* Length of diag0c buffer without header */
        __u16   version;        /* Version of header */
        char    reserved1[6];   /* Reserved */
        char    tod_ext[16];    /* TOD clock for diag0c */
        __u64   count;          /* Number of entries (CPUs) in diag0c array */
        char    reserved2[24];  /* Reserved */
};

struct hypfs_diag0c_entry {
        char    date[8];        /* MM/DD/YY in EBCDIC */
        char    time[8];        /* HH:MM:SS in EBCDIC */
        __u64   virtcpu;        /* Virtual time consumed by the virt CPU (us) */
        __u64   totalproc;      /* Total of virtual and simulation time (us) */
        __u32   cpu;            /* Linux logical CPU number */
        __u32   reserved;       /* Align to 8 byte */
};

struct hypfs_diag0c_data {
        struct hypfs_diag0c_hdr         hdr;            /* 64 byte header */
        struct hypfs_diag0c_entry       entry[];        /* diag0c entry array */
};

#endif