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https://github.com/ibm-s390-linux/s390-tools.git
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1fb859729e
When installing a boot record for "ipl" and "menu" job, always add an environment block as a boot component located in bootmap file at offset alinged on file system block size boundary. When adding, first try to import environment from a file at location specified by newly introduced "--environment" zipl option, or by default at "/etc/ziplenv". If nothing was imported, then add a blank environment block. Optionally print the content of the environment block. Store environment block size and address (as of boot component) in stage3_parms. Change interface of add_ipl_program(): add 2 additional arguments: a pointer to bootmap file name and a predicate indicating if we need to add environment block as a boot component. Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* zipl - zSeries Initial Program Loader tool
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*
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* Main program for stage3 bootloader.
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*
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* Copyright IBM Corp. 2013, 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 STAGE3_H
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#define STAGE3_H
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#include "lib/zt_common.h"
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#include "boot/s390.h"
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#include "boot/ipl.h"
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#include "boot/linux_layout.h"
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#define STAGE3_FLAG_SCSI 0x0001000000000000ULL
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#define STAGE3_FLAG_KDUMP 0x0002000000000000ULL
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#define DEFAULT_PSW_LOAD 0x0008000080010000UL
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#define UNSPECIFIED_ADDRESS -1UL
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/* Stage 3 bootloader parameter structure */
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/* Structure must not have any padding */
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struct stage3_parms {
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unsigned long long parm_addr; /* address of parmline */
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unsigned long long initrd_addr; /* address of initrd */
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unsigned long long initrd_len; /* length of initrd */
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unsigned long long load_psw; /* load psw of kernel */
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unsigned long long extra_parm; /* use extra parm line mechanism? */
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unsigned long long flags; /* flags (e.g. STAGE3_FLAG_KDUMP) */
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unsigned long long image_len; /* length of kernel */
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unsigned long long image_addr; /* target address of kernel */
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unsigned long long envblk_addr; /* address of environment block */
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unsigned long long envblk_len; /* size of environment block */
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};
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STATIC_ASSERT(sizeof(struct stage3_parms) == 8 * 10)
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extern struct stage3_parms _stage3_parms;
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extern void kdump_stage3();
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#endif /* STAGE3_H */
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