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76cdd44c2e
linux/arch/s390/kernel
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Heiko Carstens 76cdd44c2e s390/facilities: always use lowcore's stfle field for storing facility bits 
head.s contains an stfle instruction which stores it result at the
storage location that is assigned to the stfl instruction.

This is currently no problem, since we only care about one double
word. However if the number of double words in the ALS bitfield grows
the current code is not very stable.

E.g. before issuing the stfle command the memory to which it stores
must be cleared, since the instruction may or may not clear memory
contents where no bits are set.

In order to simplify the code a bit always use the storage location
that we reserved for the stfle result.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18 14:59:19 +01:00
..
vdso32 s390/vdso: emit a GNU hash 2015-08-07 09:57:39 +02:00
vdso64 s390/vdso: emit a GNU hash 2015-08-07 09:57:39 +02:00
.gitignore
asm-offsets.c s390/facilities: always use lowcore's stfle field for storing facility bits 2015-12-18 14:59:19 +01:00
audit.c
audit.h
base.S s390/kdump: fix nosmt kernel parameter 2015-06-25 09:39:26 +02:00
cache.c s390/cachinfo: add missing facility check to init_cache_level() 2015-07-28 08:54:42 +02:00
compat_audit.c
compat_linux.c groups: Consolidate the setgroups permission checks 2014-12-05 17:19:27 -06:00
compat_linux.h s390: add support for vector extension 2014-10-09 09:14:13 +02:00
compat_ptrace.h
compat_signal.c s390/fpu: always enable the vector facility if it is available 2015-10-14 14:32:08 +02:00
compat_wrapper.c s390: wire up mlock2 system call 2015-11-16 12:51:07 +01:00
cpcmd.c s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
crash_dump.c s390/dump: cleanup CPU save area handling 2015-11-27 09:24:14 +01:00
debug.c s390: time: Provide read_boot_clock64() and read_persistent_clock64() 2015-05-22 10:36:29 -07:00
diag.c s390/diag: add a s390 prefix to the diagnose trace point 2015-11-09 09:10:47 +01:00
dis.c s390/dis: Fix printing of the register numbers 2015-11-27 09:24:16 +01:00
dumpstack.c s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
early.c s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
ebcdic.c
entry.h s390/udelay: make udelay have busy loop semantics 2015-10-14 14:32:13 +02:00
entry.S s390/spinlock: do not yield to a CPU in udelay/mdelay 2015-11-27 09:24:18 +01:00
ftrace.c s390/maccess: remove potentially broken probe_kernel_write() 2015-03-25 11:49:43 +01:00
head64.S s390/facilities: always use lowcore's stfle field for storing facility bits 2015-12-18 14:59:19 +01:00
head_kdump.S s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
head.S s390/facilities: always use lowcore's stfle field for storing facility bits 2015-12-18 14:59:19 +01:00
idle.c s390/idle: convert open coded idle time seqcount 2014-12-08 09:42:32 +01:00
ipl.c s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
irq.c s390: remove runtime instrumentation interrupts 2015-11-03 14:40:51 +01:00
jump_label.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-03 15:46:07 -07:00
kprobes.c s390/maccess: remove potentially broken probe_kernel_write() 2015-03-25 11:49:43 +01:00
lgr.c
machine_kexec.c s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
Makefile s390/diag: add tracepoint for diagnose calls 2015-10-14 14:32:06 +02:00
mcount.S s390/ftrace: hotpatch support for function tracing 2015-01-29 09:19:25 +01:00
module.c s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
nmi.c s390/nmi: reduce size of percpu variable 2015-10-27 09:33:57 +01:00
os_info.c s390/dump: streamline oldmem copy functions 2015-11-27 09:24:12 +01:00
perf_cpum_cf_events.c s390/cpum_cf: Export event names in sysfs 2013-12-16 14:37:50 +01:00
perf_cpum_cf.c Merge branch 'linus' into perf/core, to pick up fixes before applying new changes 2015-09-28 08:06:57 +02:00
perf_cpum_sf.c s390/cpumf: rework program parameter setting to detect guest samples 2015-10-14 14:32:12 +02:00
perf_event.c s390/perf: make print_debug_cf() static 2014-03-14 12:59:32 +01:00
pgm_check.S s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
process.c s390: avoid cache aliasing under z/VM and KVM 2015-11-16 12:04:18 +01:00
processor.c s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
ptrace.c s390/kernel: fix ptrace peek/poke for floating point registers 2015-11-03 14:40:42 +01:00
reipl.S s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
relocate_kernel.S s390: remove "64" suffix from a couple of files 2015-03-25 11:49:34 +01:00
runtime_instr.c s390: remove runtime instrumentation interrupts 2015-11-03 14:40:51 +01:00
s390_ksyms.c s390/fpu: split fpu-internal.h into fpu internals, api, and type headers 2015-10-16 09:41:12 +02:00
sclp.c s390/sclp: Add VT220 support to early sclp console 2015-11-27 09:24:17 +01:00
setup.c s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
signal.c s390/fpu: always enable the vector facility if it is available 2015-10-14 14:32:08 +02:00
smp.c s390/dump: cleanup CPU save area handling 2015-11-27 09:24:14 +01:00
stacktrace.c
suspend.c PCI: Include <linux/pci.h>, not <asm/pci.h> 2015-06-08 07:55:03 -05:00
swsusp.S s390/hibernate: fix save and restore of vector registers 2015-09-17 13:43:41 +02:00
sys_s390.c s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
syscalls.S s390: wire up mlock2 system call 2015-11-16 12:51:07 +01:00
sysinfo.c Fairly small update, but there are some interesting new features. 2015-02-13 09:55:09 -08:00
time.c s390/etr,stp: fix possible deadlock on machine check 2015-10-14 14:32:18 +02:00
topology.c s390/topology: reduce per_cpu() invocations 2015-10-27 09:34:39 +01:00
trace.c s390/diag: add a s390 prefix to the diagnose trace point 2015-11-09 09:10:47 +01:00
traps.c s390/fpu: split fpu-internal.h into fpu internals, api, and type headers 2015-10-16 09:41:12 +02:00
uprobes.c s390/uprobes: fix address space annotation 2015-03-25 11:49:47 +01:00
vdso.c s390/vdso: use correct memory barrier 2015-10-14 14:32:01 +02:00
vmlinux.lds.S s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
vtime.c s390/vtime: correct scaled cputime of partially idle CPUs 2015-09-30 16:22:38 +02:00