/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_S390_UAPI_IPL_H
#define _ASM_S390_UAPI_IPL_H

#include <linux/types.h>

/* IPL Parameter List header */
struct ipl_pl_hdr {
        __u32 len;
        __u8  flags;
        __u8  reserved1[2];
        __u8  version;
} __packed;

#define IPL_PL_FLAG_IPLPS       0x80
#define IPL_PL_FLAG_SIPL        0x40
#define IPL_PL_FLAG_IPLSR       0x20
#define IPL_PL_FLAG_SBP         0x10

/* IPL Parameter Block header */
struct ipl_pb_hdr {
        __u32 len;
        __u8  pbt;
} __packed;

/* IPL Parameter Block types */
enum ipl_pbt {
        IPL_PBT_FCP = 0,
        IPL_PBT_SCP_DATA = 1,
        IPL_PBT_CCW = 2,
        IPL_PBT_ECKD = 3,
        IPL_PBT_NVME = 4,
};

/* IPL Parameter Block 0 with common fields */
struct ipl_pb0_common {
        __u32 len;
        __u8  pbt;
        __u8  flags;
        __u8  reserved1[2];
        __u8  loadparm[8];
        __u8  reserved2[84];
} __packed;

#define IPL_PB0_FLAG_LOADPARM   0x80

/* IPL Parameter Block 0 for FCP */
struct ipl_pb0_fcp {
        __u32 len;
        __u8  pbt;
        __u8  reserved1[3];
        __u8  loadparm[8];
        __u8  reserved2[304];
        __u8  opt;
        __u8  reserved3[3];
        __u8  cssid;
        __u8  reserved4[1];
        __u16 devno;
        __u8  reserved5[4];
        __u64 wwpn;
        __u64 lun;
        __u32 bootprog;
        __u8  reserved6[12];
        __u64 br_lba;
        __u32 scp_data_len;
        __u8  reserved7[260];
        __u8  scp_data[];
} __packed;

#define IPL_PB0_FCP_OPT_IPL     0x10
#define IPL_PB0_FCP_OPT_DUMP    0x20

/* IPL Parameter Block 0 for NVMe */
struct ipl_pb0_nvme {
        __u32 len;
        __u8  pbt;
        __u8  reserved1[3];
        __u8  loadparm[8];
        __u8  reserved2[304];
        __u8  opt;
        __u8  reserved3[3];
        __u32 fid;
        __u8 reserved4[12];
        __u32 nsid;
        __u8 reserved5[4];
        __u32 bootprog;
        __u8 reserved6[12];
        __u64 br_lba;
        __u32 scp_data_len;
        __u8  reserved7[260];
        __u8  scp_data[];
} __packed;

#define IPL_PB0_NVME_OPT_IPL    0x10
#define IPL_PB0_NVME_OPT_DUMP   0x20

/* IPL Parameter Block 0 for CCW */
struct ipl_pb0_ccw {
        __u32 len;
        __u8  pbt;
        __u8  flags;
        __u8  reserved1[2];
        __u8  loadparm[8];
        __u8  reserved2[84];
        __u16 reserved3 : 13;
        __u8  ssid : 3;
        __u16 devno;
        __u8  vm_flags;
        __u8  reserved4[3];
        __u32 vm_parm_len;
        __u8  nss_name[8];
        __u8  vm_parm[64];
        __u8  reserved5[8];
} __packed;

/* IPL Parameter Block 0 for ECKD */
struct ipl_pb0_eckd {
        __u32 len;
        __u8  pbt;
        __u8  reserved1[3];
        __u32 reserved2[78];
        __u8  opt;
        __u8  reserved4[4];
        __u8  reserved5:5;
        __u8  ssid:3;
        __u16 devno;
        __u32 reserved6[5];
        __u32 bootprog;
        __u8  reserved7[12];
        struct {
                __u16 cyl;
                __u8 head;
                __u8 record;
                __u32 reserved;
        } br_chr __packed;
        __u32 scp_data_len;
        __u8  reserved8[260];
        __u8  scp_data[];
} __packed;

#define IPL_PB0_ECKD_OPT_IPL    0x10
#define IPL_PB0_ECKD_OPT_DUMP   0x20

#define IPL_PB0_CCW_VM_FLAG_NSS         0x80
#define IPL_PB0_CCW_VM_FLAG_VP          0x40

/* IPL Parameter Block 1 for additional SCP data */
struct ipl_pb1_scp_data {
        __u32 len;
        __u8  pbt;
        __u8  scp_data[];
} __packed;

/* IPL Report List header */
struct ipl_rl_hdr {
        __u32 len;
        __u8  flags;
        __u8  reserved1[2];
        __u8  version;
        __u8  reserved2[8];
} __packed;

/* IPL Report Block header */
struct ipl_rb_hdr {
        __u32 len;
        __u8  rbt;
        __u8  reserved1[11];
} __packed;

/* IPL Report Block types */
enum ipl_rbt {
        IPL_RBT_CERTIFICATES = 1,
        IPL_RBT_COMPONENTS = 2,
};

/* IPL Report Block for the certificate list */
struct ipl_rb_certificate_entry {
        __u64 addr;
        __u64 len;
} __packed;

struct ipl_rb_certificates {
        __u32 len;
        __u8  rbt;
        __u8  reserved1[11];
        struct ipl_rb_certificate_entry entries[];
} __packed;

/* IPL Report Block for the component list */
struct ipl_rb_component_entry {
        __u64 addr;
        __u64 len;
        __u8  flags;
        __u8  reserved1[5];
        __u16 certificate_index;
        __u8  reserved2[8];
};

#define IPL_RB_COMPONENT_FLAG_SIGNED    0x80
#define IPL_RB_COMPONENT_FLAG_VERIFIED  0x40

struct ipl_rb_components {
        __u32 len;
        __u8  rbt;
        __u8  reserved1[11];
        struct ipl_rb_component_entry entries[];
} __packed;

#endif