mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
195 lines
4.1 KiB
C
195 lines
4.1 KiB
C
/*
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* zgetdump - Tool for copying and converting System z dumps
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*
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* S390 dump format common functions
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*
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* Copyright IBM Corp. 2001, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef DF_S390_H
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#define DF_S390_H
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#include "dt.h"
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#include "zg.h"
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#define DF_S390_MAGIC 0xa8190173618f23fdULL
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#define DF_S390_HDR_SIZE 0x1000
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#define DF_S390_EM_SIZE 16
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#define DF_S390_EM_STR "DUMP_END"
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#define DF_S390_CPU_MAX 512
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#define DF_S390_MAGIC_BLK_ECKD 3
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/*
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* Architecture of dumped system
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*/
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enum df_s390_arch {
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DF_S390_ARCH_32 = 1,
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DF_S390_ARCH_64 = 2,
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};
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/*
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* s390 dump header format
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*/
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struct df_s390_hdr {
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u64 magic; /* 0x000 */
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u32 version; /* 0x008 */
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u32 hdr_size; /* 0x00c */
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u32 dump_level; /* 0x010 */
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u32 page_size; /* 0x014 */
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u64 mem_size; /* 0x018 */
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u64 mem_start; /* 0x020 */
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u64 mem_end; /* 0x028 */
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u32 num_pages; /* 0x030 */
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u32 pad; /* 0x034 */
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u64 tod; /* 0x038 */
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u64 cpu_id; /* 0x040 */
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u32 arch; /* 0x048 */
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u32 volnr; /* 0x04c */
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u32 build_arch; /* 0x050 */
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u64 mem_size_real; /* 0x054 */
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u8 mvdump; /* 0x05c */
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u16 cpu_cnt; /* 0x05d */
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u16 real_cpu_cnt; /* 0x05f */
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u8 end_pad1[0x200-0x061]; /* 0x061 */
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u64 mvdump_sign; /* 0x200 */
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u64 mvdump_zipl_time; /* 0x208 */
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u8 end_pad2[0x800-0x210]; /* 0x210 */
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u32 lc_vec[DF_S390_CPU_MAX]; /* 0x800 */
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} __attribute__((packed));
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/*
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* End marker: Should be at the end of every valid s390 crash dump.
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*/
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struct df_s390_em {
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char str[8];
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u64 tod;
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} __attribute__((packed));
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/*
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* Convert DFI arch to s390 arch
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*/
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static inline enum df_s390_arch df_s390_from_dfi_arch(enum dfi_arch dfi_arch)
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{
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return dfi_arch == DFI_ARCH_64 ? DF_S390_ARCH_64 : DF_S390_ARCH_32;
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}
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/*
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* Convert s390 arch to DFI arch
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*/
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static inline enum dfi_arch df_s390_to_dfi_arch(enum df_s390_arch df_s390_arch)
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{
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return df_s390_arch == DF_S390_ARCH_64 ? DFI_ARCH_64 : DFI_ARCH_32;
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}
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/*
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* Dump tool structure (version 1)
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*/
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struct df_s390_dumper_v1 {
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char code[0xff7 - 0x8];
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u8 force;
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u64 mem;
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} __attribute__ ((packed));
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#define DF_S390_DUMPER_SIZE_V1 0x1000
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/*
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* Dump tool structure (version 2)
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*/
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struct df_s390_dumper_v2 {
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char code[0x1ff7 - 0x8];
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u8 force;
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u64 mem;
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} __attribute__ ((packed));
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#define DF_S390_DUMPER_SIZE_V2 0x2000
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/*
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* Dump tool structure (version 3 and 4)
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*/
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struct df_s390_dumper_v3 {
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char code[0x2ff7 - 0x8];
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u8 force;
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u64 mem;
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} __attribute__ ((packed));
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#define DF_S390_DUMPER_SIZE_V3 0x3000
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/*
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* Dump tool structure
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*/
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struct df_s390_dumper {
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char magic[7];
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u8 version;
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union {
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struct df_s390_dumper_v1 v1;
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struct df_s390_dumper_v2 v2;
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struct df_s390_dumper_v3 v3;
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} d;
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} __attribute__ ((packed));
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/*
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* Dumper member access helpers
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*/
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#define df_s390_dumper_magic(dumper) ((dumper).magic)
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#define df_s390_dumper_version(dumper) ((dumper).version)
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static inline u64 df_s390_dumper_mem(struct df_s390_dumper *dumper)
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{
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switch (dumper->version) {
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case 1:
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return dumper->d.v1.mem;
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case 2:
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return dumper->d.v2.mem;
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case 3:
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default:
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return dumper->d.v3.mem;
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}
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}
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static inline u8 df_s390_dumper_force(struct df_s390_dumper *dumper)
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{
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switch (dumper->version) {
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case 1:
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return dumper->d.v1.force;
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case 2:
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return dumper->d.v2.force;
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case 3:
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default:
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return dumper->d.v3.force;
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}
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}
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static inline unsigned long df_s390_dumper_size(struct df_s390_dumper *dumper)
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{
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switch (dumper->version) {
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case 1:
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return 0x1000;
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case 2:
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return 0x2000;
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case 3:
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default:
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return 0x3000;
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}
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}
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/*
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* s390 dump helpers
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*/
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extern void df_s390_hdr_add(struct df_s390_hdr *hdr);
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extern void df_s390_em_add(struct df_s390_em *em);
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extern void df_s390_cpu_info_add(struct df_s390_hdr *hdr, u64 addr_max);
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extern int df_s390_em_verify(struct df_s390_em *em, struct df_s390_hdr *hdr);
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extern void df_s390_dumper_read(struct zg_fh *fh, int32_t blk_size,
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struct df_s390_dumper *dumper);
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/*
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* DASD multi-volume dumper functions
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*/
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extern int dt_s390mv_init(void);
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extern void dt_s390mv_exit(void);
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extern void dt_s390mv_info(void);
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#endif /* DF_S390_H */
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