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/*
* IPL related definitions
*
* Copyright IBM Corp. 2020
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef IPL_H
#define IPL_H
#include "lib/zt_common.h"
#include "page.h"
#define IPL_FLAG_SECURE 0x40
#define IPL_RB_COMPONENT_FLAG_SIGNED 0x80
#define IPL_RB_COMPONENT_FLAG_VERIFIED 0x40
#define IPL_MAX_SUPPORTED_VERSION 0
#define IPL_PARM_BLOCK_VERSION 0x1
#ifndef __ASSEMBLER__
#include <stdint.h>
/* IPL Parameter List header */
struct ipl_pl_hdr {
uint32_t len;
uint8_t flags;
uint8_t reserved1[2];
uint8_t version;
} __packed;
/* IPL Parameter Block header */
struct ipl_pb_hdr {
uint32_t len;
uint8_t 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_PBT_PV = 5,
};
/* IPL Parameter Block 0 with common fields */
struct ipl_pb0_common {
uint32_t len;
uint8_t pbt;
uint8_t flags;
uint8_t reserved1[2];
uint8_t loadparm[8];
uint8_t reserved2[84];
} __packed;
/* IPL Parameter Block 0 for FCP */
struct ipl_pb0_fcp {
uint32_t len;
uint8_t pbt;
uint8_t reserved1[3];
uint8_t loadparm[8];
uint8_t reserved2[304];
uint8_t opt;
uint8_t reserved3[3];
uint8_t cssid;
uint8_t reserved4[1];
uint8_t devno;
uint8_t reserved5[4];
uint64_t wwpn;
uint64_t lun;
uint32_t bootprog;
uint8_t reserved6[12];
uint64_t br_lba;
uint32_t scp_data_len;
uint8_t reserved7[260];
uint8_t scp_data[];
} __packed;
/* IPL Parameter Block 0 for CCW */
struct ipl_pb0_ccw {
uint32_t len;
uint8_t pbt;
uint8_t flags;
uint8_t reserved1[2];
uint8_t loadparm[8];
uint8_t reserved2[84];
uint16_t reserved3 : 13;
uint8_t ssid : 3;
uint16_t devno;
uint8_t vm_flags;
uint8_t reserved4[3];
uint32_t vm_parm_len;
uint8_t nss_name[8];
uint8_t vm_parm[64];
uint8_t reserved5[8];
} __packed;
/* Structure must not have any padding */
struct ipl_pb0_pv_comp {
uint64_t tweak_pref;
uint64_t addr;
uint64_t len;
};
STATIC_ASSERT(sizeof(struct ipl_pb0_pv_comp) == 3 * 8)
/* IPL Parameter Block 0 for PV */
struct ipl_pb0_pv {
uint32_t len;
uint8_t pbt;
uint8_t reserved1[3];
uint8_t loadparm[8];
uint8_t reserved2[84];
uint8_t reserved3[3];
uint8_t version;
uint8_t reserved4[4];
uint32_t num_comp;
uint64_t pv_hdr_addr;
uint64_t pv_hdr_size;
struct ipl_pb0_pv_comp components[];
} __packed;
struct ipl_parameter_block {
struct ipl_pl_hdr hdr;
union {
struct ipl_pb_hdr pb0_hdr;
struct ipl_pb0_common common;
struct ipl_pb0_fcp fcp;
struct ipl_pb0_ccw ccw;
struct ipl_pb0_pv pv;
char raw[PAGE_SIZE - sizeof(struct ipl_pl_hdr)];
};
} __packed;
/* IPL Report List header */
struct ipl_rl_hdr {
uint32_t len;
uint8_t flags;
uint8_t reserved1[2];
uint8_t version;
uint8_t reserved2[8];
} __packed;
/* IPL Report Block header */
/* Structure must not have any padding */
struct ipl_rb_hdr {
uint32_t len;
uint8_t rbt;
uint8_t reserved1[11];
};
STATIC_ASSERT(sizeof(struct ipl_rb_hdr) == 4 + 1 + 11)
/* 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 {
uint64_t addr;
uint64_t len;
} __packed;
struct ipl_rb_certificates {
uint32_t len;
uint8_t rbt;
uint8_t reserved1[11];
struct ipl_rb_certificate_entry entries[];
} __packed;
/* IPL Report Block for the component list */
struct ipl_rb_component_entry {
uint64_t addr;
uint64_t len;
uint8_t flags;
uint8_t reserved1[5];
uint16_t certificate_index;
uint8_t reserved2[8];
};
/* Structure must not have any padding */
struct ipl_rb_components {
uint32_t len;
uint8_t rbt;
uint8_t reserved1[11];
struct ipl_rb_component_entry entries[];
};
STATIC_ASSERT(sizeof(struct ipl_rb_components) == 4 + 1 + 11)
#endif /* __ASSEMBLER__ */
#endif /* IPL_H */
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