linux/arch/s390
Martin Schwidefsky 34525e1f7e s390: store breaking event address only for program checks
The principles of operations specifies that the breaking event address
is stored to the address 0x110 in the prefix page only for program checks.
The last branch in user space is lost as soon as a branch in kernel space
is executed after e.g. an svc. This makes it impossible to accurately
maintain the breaking event address for a user space process.

Simplify the code, just copy the current breaking event address from
0x110 to the task structure for program checks from user space.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-01-31 10:46:53 +01:00
..
appldata Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
boot Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
configs s390: update defconfigs 2017-01-16 07:27:48 +01:00
crypto s390/prng: Adjust generation of entropy to produce real 256 bits. 2017-01-31 10:46:10 +01:00
hypfs s390: hypfs: make inode explicitly non-modular 2016-10-31 17:55:40 +01:00
include s390: provide sclp based boot console 2017-01-16 07:27:55 +01:00
kernel s390: store breaking event address only for program checks 2017-01-31 10:46:53 +01:00
kvm s390: remove couple of unneeded semicolons 2017-01-16 07:27:54 +01:00
lib s390/lib: improve memmove, memset and memcpy 2017-01-16 07:27:51 +01:00
mm s390: remove couple of unneeded semicolons 2017-01-16 07:27:54 +01:00
net s390/bpf: remove redundant check for non-null image 2017-01-16 07:27:55 +01:00
numa s390/numa: pin all possible cpus to nodes early 2016-12-07 07:23:33 +01:00
oprofile s390/dumpstack: restore reliable indicator for call traces 2016-10-17 14:44:30 +02:00
pci s390/pci: use proper endianness annotations 2017-01-16 07:27:53 +01:00
tools s390: remove unneeded dependency for gen_facilities 2016-11-08 10:30:28 +01:00
defconfig s390: update defconfigs 2017-01-16 07:27:48 +01:00
Kbuild s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-12-13 16:33:33 -08:00
Kconfig.debug s390: provide sclp based boot console 2017-01-16 07:27:55 +01:00
Makefile s390: add assembler include path for vx-insn.h 2016-09-06 11:00:04 +02:00