Commit Graph

12 Commits

Author SHA1 Message Date
Eduard Shishkin
d6b702d579 zipl/src: add basic support for multiple target base disks
. Modify disk_get_info() to process multiple sets of target parameters
  provided by the helper script and store it in the array of "targets"
  of the structure job_target_data;
. Besides the logical device, maintain an array of physical base disks
  in the disk_info structure;
. Use the logical target device only to create bootmap (it is
  automatically mirrored by the respective linux driver (dm, or md)
  managing the mirrored target). In contrast, install bootstrap blocks
  to each physical base disk individually, bypassing that driver;
. Report in verbose mode on which base disks the bootstrap
  installation was performed;
. Use the following logic of setting @info->device (which is printed
  as "Device...:" in verbose mode):
  . source_auto   - the target base disk is set;
  . source_script - the target (logical) device is set;
  . source_user   - the device specified by user (via --targetbase
                    option), or config file is set.

Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2024-08-26 10:40:21 +02:00
Eduard Shishkin
08232d29b9 zipl/src: Drop "bootmap_dir" field of struct install_info
Use "bootmap_dir" field of struct job_target_data instead,
thus avoid allocation/releasing additional resources.

Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2024-05-27 16:51:56 +02:00
Eduard Shishkin
90a2e6d70e zipl/src: Fix leak of files
Fix leak of temporary files: if prepare_build_program_table_file()
is called in no dry-run mode and there was an error then the file
@filename will not be deleted in free_bootloader()).

Fix leak of renamed files as well as corruption of previously
created bootmap files with the same name in case of unsuccessful
IPL installation.

Add a special flag to keep a track of file's "temporary" state;
Base the cleanup decision on this flag instead of checking dry-run;
Release resources captured by prepare_bootloader() in the error path;
Move the final rename to be called only after successful installation.

                    Original logic:

prepare_bootloader_ipl():
prepare_bootloader_ngdump():

  always create temporary @filename
  if (!dry-run) rename @filename;
  install;
  cleanup: if (dry_run) drop @filename (*** LEAK ***)

prepare_bootloader_device():

  if (dry_run) create temporary @filename
  install, don't rename;
  cleanup: if (dry_run) drop @filename

                    New logic:

prepare_bootloader_ipl():
prepare_bootloader_ngdump():

  always create temporary @filename and set @tmp_filename_created;
  install;
  if (!dry_run) rename @filename and clear @tmp_filename_created;
  cleanup: if (@tmp_filename_created is set), drop @filename

prepare_bootloader_device():

  if (dry_run) create @filename and set @tmp_filename_created;
  install, don't rename;
  cleanup: if (@tmp_filename_created is set) drop @filename.

Fixes: https://github.com/ibm-s390-tools/s390-tools/issues/165
Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Acked-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2024-04-02 17:37:53 +02:00
Mikhail Zaslonko
c61783546b zipl: Add --no-compress option to zipl command
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>
2023-09-27 18:29:06 +02:00
Eduard Shishkin
917d611883 zipl: add/move some definitions to header files
Make the listed changes which are needed to re-use some definitions
by the new zipl-debug(8) tool introduced by the next patch in the
series:

. Add definitions to boot_defs.h:
   . a named union disk_bloclkptr (instead of the anonymous one);
   . a named structure disk_program_table;
. Remove a 'typedef union disk_blockptr_t' from boot/stage2.h
  (cleanup), use the named union in boot_defs.h instead;
. Move the definition of scsi_layout types and the function
  get_scsi_layout() from install.c to install.h;
. Move definition of PROGRAM_TABLE_BLOCK_SIZE from bootmap.c to
  bootmap.h

Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2023-07-04 15:41:02 +02:00
Eduard Shishkin
7c656faa36 zipl: remove last table / number of tables logic
In order to allow installing only a list-directed ipl entry, remove
the last-table/number-of-tables logic which always required a legacy
program table. With the new code there's no longer a loop in
prepare_bootloader() which requires a certain start index or order
of tables.

Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2023-05-26 12:21:03 +02:00
Sven Schnelle
10515380e8 zipl: add print_details flag to struct install_set
Instead of depending on array index, add an explicit print_details
flag to struct install_set.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Eduard Shishkin <edward6@linux.ibm.com>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2023-05-26 12:21:03 +02:00
Sven Schnelle
7301883e69 zipl: add skip_prepare flag to struct install_set
Instead of depending on array index to decide whether we
did already the preparation work for installing the bootloader,
add an explicit skip_prepare flag to struct install_set.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Eduard Shishkin <edward6@linux.ibm.com>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2023-05-26 12:21:03 +02:00
Sven Schnelle
555f3782d4 zipl: rename PROGRAM_TABLE_* to {LEGACY}_BLKPTR_FORMAT_ID
In preparation of decoupling the program table position from
the block pointer format, rename:

PROGRAM_TABLE_0 to LEGACY_BLKPTR_FORMAT_ID
PRAGRAM_TABLE_1 to BLKPTR_FORMAT_ID

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2023-05-26 12:21:03 +02:00
Eduard Shishkin
75513ee975 zipl/src: Fix the improper order of resource releasing
Fix the improper order of resource releasing resulted in failed umount
Do umount after closing (not before)

Fixes: f7d2339 (zipl: List-Directed IPL from ECKD DASD)
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
2023-01-27 14:12:38 +01:00
Eduard Shishkin
f7d2339c6a zipl: List-Directed IPL from ECKD DASD
Make zipl tool prepare ECKD DASD for booting by different IPL
programs (with the same boot record installed).

Besides standard CCW-type IPL, user gets an ability to trigger
(with the same boot record installed!) List-Directed IPL. This
allows to use the feature of secure boot from ECKD DASD (which
is not available for CCW-type IPL).

When using the old boot interfaces, the usual CCW-type IPL is
triggered for DASD. Also for compatibility reasons zipl(8) tool
is modified to create and install one, or two "similar" program
tables per boot partition, depending on job and disk type. The
"similar" program tables differ only in block pointers format.
The old IPL programs (CCW-type IPL) use program table based on the
old format.

All program tables are packed to the same bootmap file. Their
order and logical offsets in the file are not significant (not
used by anyone).

The picture below shows which program table is used for IPL of
specified type from disk of specified type. Here "0" and "1" are
identifiers of program tables based on the old and new block
pointers format respectively. E.g. program table "0" is used for
CCW-type IPL from ECKD DASD. LD-IPL from DASD FBA is unsupported
(respectively, only one program table "0" is used), etc.

                            CCW-IPL   LD-IPL

 SCSI                          X        0
 DASD FBA                      0        X
 ECKD DASD LDL                 0        X
 ECKD DASD CDL                 0        1

Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2022-11-29 17:03:57 +01:00
Michael Holzheu
b627b8d8e1 Initial s390-tools-2.0.0 import
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>
2017-08-21 10:55:40 +02:00