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https://github.com/ibm-s390-linux/s390-tools.git
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c61783546b
Add --no-compress option to explicitly omit compression for single-volume DASD dumper. Used primarily for test purposes. Since only the lowest byte of mvdump_force field (struct stage2dump_parm_tail) has been used, split it in two byte fields and use one for the new no_compress attribute. Update zipl help and zipl man page with the new parameter info. Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
/*
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* s390-tools/zipl/include/install.h
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* Functions handling the installation of the boot loader code onto disk.
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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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*/
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#ifndef INSTALL_H
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#define INSTALL_H
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#include "disk.h"
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#include "job.h"
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#include "zipl.h"
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#include "boot/boot_defs.h"
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#define NR_PROGRAM_TABLES NR_BLKPTR_FORMATS
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enum program_component_id {
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COMPONENT_ID_HEAP_AREA,
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COMPONENT_ID_STACK_AREA,
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COMPONENT_ID_LOADER_SIGNATURE,
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COMPONENT_ID_LOADER,
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COMPONENT_ID_PARAMETERS,
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COMPONENT_ID_IMAGE_SIGNATURE,
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COMPONENT_ID_KERNEL_IMAGE,
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COMPONENT_ID_PARMLINE,
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COMPONENT_ID_RAMDISK_SIGNATURE,
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COMPONENT_ID_RAMDISK,
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COMPONENT_ID_ENVBLK,
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COMPONENT_ID_SEGMENT_FILE,
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NR_PROGRAM_COMPONENTS
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};
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/* Types of SCSI disk layouts */
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enum scsi_layout {
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scsi_layout_pcbios,
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scsi_layout_sun,
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scsi_layout_sgi,
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scsi_layout_unknown
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};
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struct component_loc {
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address_t addr;
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size_t size;
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};
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struct component_footer {
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component_type type;
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const char *desc;
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};
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struct program_component {
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struct component_loc loc;
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disk_blockptr_t *list;
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blocknum_t count;
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};
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struct program_table {
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disk_blockptr_t table;
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disk_blockptr_t *stage1b_list;
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blocknum_t stage1b_count;
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};
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/* Bootloader Installation Set */
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struct install_set {
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struct program_table tables[NR_PROGRAM_TABLES];
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struct program_component *components[NR_PROGRAM_COMPONENTS];
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int nr_menu_entries;
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int fd;
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char *device;
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char *filename;
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char *dump_mount_point;
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unsigned int dump_tmp_dir_created:1;
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unsigned int dump_mounted:1;
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unsigned int skip_prepare:1;
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unsigned int print_details:1;
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struct disk_info *info;
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disk_blockptr_t scsi_dump_sb_blockptr;
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};
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extern struct component_footer component_footers[NR_PROGRAM_COMPONENTS];
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/* Determine SCSI disk layout from the specified BOOTBLOCK. */
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static inline enum scsi_layout get_scsi_layout(unsigned char *bootblock)
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{
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if ((bootblock[510] == 0x55) && (bootblock[511] == 0xaa))
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return scsi_layout_pcbios;
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else if ((bootblock[508] == 0xda) && (bootblock[509] == 0xbe))
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return scsi_layout_sun;
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else if ((bootblock[0] == 0x0b) && (bootblock[1] == 0xe5) &&
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(bootblock[2] == 0xa9) && (bootblock[3] == 0x41))
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return scsi_layout_sgi;
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return scsi_layout_unknown;
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}
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static inline component_type component_type_by_id(enum program_component_id id)
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{
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return component_footers[id].type;
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}
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static inline const char *component_desc_by_id(enum program_component_id id)
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{
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return component_footers[id].desc;
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}
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static inline struct program_component *get_component(struct install_set *bis,
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int i, int j)
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{
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return bis->components[i] + j;
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}
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int prepare_bootloader(struct job_data *job, struct install_set *bis);
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int install_bootloader(struct job_data *job, struct install_set *bis);
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void free_bootloader(struct install_set *bis);
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int install_tapeloader(const char* device, const char* image,
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const char* parmline, const char* ramdisk,
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address_t image_addr, address_t parm_addr,
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address_t initrd_addr);
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int install_dump(const char *device, struct job_target_data *target,
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uint64_t mem, bool no_compress);
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int install_mvdump(char* const device[], struct job_target_data* target,
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int device_count, uint64_t mem, uint8_t force);
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int install_fba_stage1b(int fd, disk_blockptr_t **stage1b_list,
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blocknum_t *stage1b_count, disk_blockptr_t *stage2_list,
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blocknum_t stage2_count, struct disk_info *info);
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int install_eckd_stage1b(int fd, disk_blockptr_t **stage1b_list,
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blocknum_t *stage1b_count,
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disk_blockptr_t *stage2_list,
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blocknum_t stage2_count, struct disk_info *info);
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int rewind_tape(int fd);
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#endif /* INSTALL_H */
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