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d280e5b1fa
The BootLoaderSpec (BLS) defines a file format for boot configurations, so bootloaders can parse these files and create their boot menu entries by using the information provided by them [0]. This allow to configure the boot items as drop-in files in a directory instead of having to parse and modify a bootloader configuration file. If the /boot/loader/entries exists and there are BLS files there, then these are parsed and configuration sections are added without the need to have these in a zipl.conf file. A different BLS directory can be specified from the command line using the --blsdir option. [0]: https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/ GitHub-ID: #28 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* s390-tools/zipl/include/zipl.h
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* zSeries Initial Program Loader tool.
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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 ZIPL_H
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#define ZIPL_H
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#include <stdint.h>
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#include "lib/zt_common.h"
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#define ZIPL_MAGIC "zIPL"
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#define ZIPL_MAGIC_SIZE 4
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#define DISK_LAYOUT_ID 0x00000001
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#define ZIPL_STAGE2_LOAD_ADDRESS 0x2000
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#define ZIPL_STAGE3_ENTRY_ADDRESS 0xa050LL
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#define DEFAULT_IMAGE_ADDRESS 0x10000LL
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#define KDUMP_IMAGE_ADDRESS 0x10010LL
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#define DEFAULT_STAGE3_ADDRESS 0xa000LL
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#define MINIMUM_ADDRESS 0x10000LL
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#define ADDRESS_LIMIT 0x80000000LL
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#define ADDRESS_LIMIT_KDUMP 0x2000000UL /* HSA size: 32 MiB */
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#define UNSPECIFIED_ADDRESS -1ULL
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#define MAXIMUM_PARMLINE_SIZE 0x380
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#define MAXIMUM_PHYSICAL_BLOCKSIZE 0x1000
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#define PSW_ADDRESS_MASK 0x000000007fffffffLL
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#define PSW_LOAD 0x0008000080000000LL
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#define PSW_DISABLED_WAIT 0x000a000000000000LL
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#define KERNEL_HEADER_SIZE 65536
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#define BOOTMAP_FILENAME "bootmap"
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#define BOOTMAP_TEMPLATE_FILENAME "bootmap_temp.XXXXXX"
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#define DEFAULTBOOT_SECTION "defaultboot"
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#define ZIPL_CONF_VAR "ZIPLCONF"
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#define ZIPL_DEFAULT_CONF "/etc/zipl.conf"
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#define ZIPL_DEFAULT_BLSDIR "/boot/loader/entries"
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#define MENU_DEFAULT_PROMPT 0
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#define MENU_DEFAULT_TIMEOUT 0
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#define FSDUMP_IMAGE STRINGIFY(ZFCPDUMP_DIR) "/" STRINGIFY(ZFCPDUMP_FS_IMAGE)
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#define FSDUMP_RAMDISK STRINGIFY(ZFCPDUMP_DIR) "/" STRINGIFY(ZFCPDUMP_FS_RD)
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#define FSDUMP_PART_IMAGE STRINGIFY(ZFCPDUMP_DIR) "/" \
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STRINGIFY(ZFCPDUMP_PART_IMAGE)
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#define FSDUMP_PART_RAMDISK STRINGIFY(ZFCPDUMP_DIR) "/" \
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STRINGIFY(ZFCPDUMP_PART_RD)
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#define MAX_DUMP_VOLUMES 32
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/* Internal component load address type */
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typedef uint64_t address_t;
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/* Type for address calculations */
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#define VOID_ADD(ptr, offset) ((void *) (((unsigned long) ptr) + \
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((unsigned long) offset)))
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/* Call a function depending on the value of dry_run and return either the
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* resulting return code or 0. */
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#define DRY_RUN_FUNC(x) (dry_run ? 0 : (x))
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#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1)
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#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
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extern int verbose;
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extern int interactive;
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extern int dry_run;
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#endif /* not ZIPL_H */
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