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a62bc07392
linux/drivers/s390/char
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Michael Holzheu a62bc07392 s390/kdump: add support for vector extension 
With this patch for kdump the s390 vector registers are stored into the
prepared save areas in the old kernel and into the REGSET_VX_LOW and
REGSET_VX_HIGH ELF notes for /proc/vmcore in the new kernel.

The NT_S390_VXRS_LOW note contains the lower halves of the first 16 vector
registers 0-15. The higher halves are stored in the floating point register
ELF note.  The NT_S390_VXRS_HIGH contains the full vector registers 16-31.

The kernel provides a save area for storing vector register in case of
machine checks. A pointer to this save are is stored in the CPU lowcore
at offset 0x11b0. This save area is also used to save the registers for
kdump. In case of a dumped crashed kdump those areas are used to extract
the registers of the production system.

The vector registers for remote CPUs are stored using the "store additional
status at address" SIGP. For the dump CPU the vector registers are stored
with the VSTM instruction.

With this patch also zfcpdump stores the vector registers.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-10-09 09:14:16 +02:00
..
con3215.c s390/3215: fix tty output containing tabs 2014-08-15 09:01:17 +02:00
con3270.c s390/con3270: optionally disable auto update 2014-03-26 10:55:33 +01:00
ctrlchar.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ctrlchar.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
defkeymap.c Build fix for drivers/s390/char/defkeymap.c 2008-03-04 08:01:26 -08:00
defkeymap.map
diag_ftp.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
diag_ftp.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
fs3270.c s390/3270: fix missing device_destroy() call 2013-11-15 14:08:37 +01:00
hmcdrv_cache.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_cache.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_dev.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_dev.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_ftp.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_ftp.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
hmcdrv_mod.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
Kconfig s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
keyboard.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
keyboard.h TTY: switch tty_schedule_flip 2013-01-15 22:43:15 -08:00
Makefile s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
monreader.c s390/monreader: Remove redundant NULL check before kfree 2013-04-17 14:07:25 +02:00
monwriter.c s390/monwriter: fix smatch warning for strcpy() 2013-10-24 17:17:08 +02:00
raw3270.c s390/3270: correct size detection with the read-partition command 2014-07-16 10:48:10 +02:00
raw3270.h s390/con3270: optionally disable auto update 2014-03-26 10:55:33 +01:00
sclp_async.c [S390] sclp_async: Use kstrtoul_from_user 2011-08-03 16:44:20 +02:00
sclp_cmd.c s390/sclp_cmd: replace PTR_RET with PTR_ERR_OR_ZERO 2014-04-11 13:53:42 +02:00
sclp_con.c s390/sclp: add parameter to specify number of buffer pages 2013-06-26 21:10:03 +02:00
sclp_config.c s390/sclp: reword cpu capability change message 2013-08-22 12:20:07 +02:00
sclp_cpi_sys.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_cpi_sys.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_cpi.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_ctl.c s390/sclp: remove duplicated include from sclp_ctl.c 2013-06-26 21:10:24 +02:00
sclp_diag.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
sclp_early.c s390/sclp: reduce dependency on event type masks 2014-09-25 10:52:01 +02:00
sclp_ftp.c s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
sclp_ftp.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
sclp_ocf.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_quiesce.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_rw.c s390/sclp: reduce dependency on event type masks 2014-09-25 10:52:01 +02:00
sclp_rw.h [S390] sclp: fix compile error for !SCLP_CONSOLE 2009-07-07 16:37:50 +02:00
sclp_sdias.c s390/sclp: Move declarations for sclp_sdias into separate header file 2013-11-15 14:08:39 +01:00
sclp_sdias.h s390/sclp: Move declarations for sclp_sdias into separate header file 2013-11-15 14:08:39 +01:00
sclp_tty.c s390/sclp: remove unnecessary XTABS flag 2014-08-15 09:01:20 +02:00
sclp_tty.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_vt220.c s390/sclp: reduce dependency on event type masks 2014-09-25 10:52:01 +02:00
sclp.c s390/sclp: replace PTR_RET with PTR_ERR_OR_ZERO 2014-04-11 13:53:40 +02:00
sclp.h s390/hmcdrv: HMC drive CD/DVD access 2014-09-25 10:52:02 +02:00
tape_34xx.c s390/irq: remove split irq fields from /proc/stat 2013-01-08 10:57:07 +01:00
tape_3590.c s390/irq: remove split irq fields from /proc/stat 2013-01-08 10:57:07 +01:00
tape_3590.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_char.c s390/tape: fix MTIOCGET ioctl to report blocksize 2014-09-25 10:52:03 +02:00
tape_class.c s390/drivers: Cocci spatch "ptr_ret.spatch" 2013-06-26 21:10:22 +02:00
tape_class.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_core.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_proc.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_std.c s390/tape: Add missing destroy_timer_on_stack() 2014-04-01 09:23:37 +02:00
tape_std.h s390/tape: remove even more tape block leftovers 2012-09-26 15:45:20 +02:00
tape.h s390/tape: remove even more tape block leftovers 2012-09-26 15:45:20 +02:00
tty3270.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-01-20 09:23:31 -08:00
tty3270.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmcp.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmcp.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmlogrdr.c s390: avoid format strings leaking into names 2014-06-11 10:13:27 +02:00
vmur.c s390/vmur: Link parent CCW device during UR device creation 2014-01-22 14:02:11 +01:00
vmur.h [S390] vmur: Use wait queue instead of mutex to serialize open 2008-04-17 07:46:59 +02:00
zcore.c s390/kdump: add support for vector extension 2014-10-09 09:14:16 +02:00