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kernel_linux/arch/s390/include/asm
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Heiko Carstens e991c24d68 s390/ctl_reg: make __ctl_load a full memory barrier 
We have quite a lot of code that depends on the order of the
__ctl_load inline assemby and subsequent memory accesses, like
e.g. disabling lowcore protection and the writing to lowcore.

Since the __ctl_load macro does not have memory barrier semantics, nor
any other dependencies the compiler is, theoretically, free to shuffle
code around. Or in other words: storing to lowcore could happen before
lowcore protection is disabled.

In order to avoid this class of potential bugs simply add a full
memory barrier to the __ctl_load macro.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-01-16 07:27:48 +01:00
..
fpu
s390/fpu: improve kernel_fpu_[begin|end]
2016-08-29 11:05:01 +02:00
trace
s390/zcrypt: tracepoint definitions for zcrypt device driver.
2016-12-14 16:33:40 +01:00
airq.h
s390/airq: add support for irq ranges
2014-03-04 10:41:04 +01:00
appldata.h
s390/diag: add a statistic for diagnose calls
2015-10-14 14:32:06 +02:00
asm-prototypes.h
s390/kbuild: enable modversions for symbols exported from asm
2016-12-20 15:22:56 +01:00
atomic_ops.h
s390/atomic: refactor atomic primitives
2016-11-11 16:37:33 +01:00
atomic.h
s390/atomic: refactor atomic primitives
2016-11-11 16:37:33 +01:00
barrier.h
s390: more efficient smp barriers
2016-01-12 20:47:05 +02:00
bitops.h
s390/bitops: use atomic primitives for bitops
2016-11-11 16:37:38 +01:00
bug.h
…
bugs.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
cache.h
s390: use __section macro everywhere
2016-06-13 15:58:23 +02:00
cacheflush.h
mm/debug_pagealloc: fix build failure on ppc and some other archs
2015-02-05 13:35:30 -08:00
ccwdev.h
s390/cio: fix multiple structure definitions
2014-05-20 08:58:53 +02:00
ccwgroup.h
s390: fix new ccwgroup.h kernel-doc warning
2014-05-20 08:58:45 +02:00
checksum.h
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
chpid.h
s390/cio: fix multiple structure definitions
2014-05-20 08:58:53 +02:00
cio.h
s390/time: STP sync clock correction
2016-06-13 15:58:19 +02:00
clp.h
s390/pci: add ioctl interface for CLP
2016-03-07 16:54:32 +01:00
cmb.h
s390/cio: use device_lock during cmb activation
2015-10-14 14:32:02 +02:00
cmpxchg.h
s390/cmpxchg: remove dead code
2015-10-14 14:32:15 +02:00
compat.h
s390: remove is_32bit_task() helper
2015-11-27 09:24:17 +01:00
cpacf.h
s390/crypto: cpacf function detection
2016-08-29 11:05:09 +02:00
cpcmd.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
cpu_mf.h
s390/cpumf: fix qsi inline assembly
2016-12-14 16:33:40 +01:00
cpu.h
s390/smp: cleanup core vs. cpu in the SCLP interface
2015-06-25 09:39:24 +02:00
cpufeature.h
s390/module: enable generic CPU feature modalias using s390 ELF hwcaps
2015-07-22 09:58:02 +02:00
cputime.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
crw.h
s390/cio: Consolidate inline assemblies and related data definitions
2015-12-18 14:59:34 +01:00
css_chars.h
s390/qdio: bridgeport support - CHSC part
2014-01-15 14:48:01 -08:00
ctl_reg.h
s390/ctl_reg: make __ctl_load a full memory barrier
2017-01-16 07:27:48 +01:00
current.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
debug.h
s390/debug: avoid function call for debug_sprintf_*
2014-12-08 09:42:29 +01:00
delay.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
device.h
s390/dma: Allow per device dma ops
2016-03-02 17:01:56 +02:00
diag.h
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
dis.h
s390/disassembler: add vector instructions
2014-10-09 09:14:15 +02:00
div64.h
…
dma-mapping.h
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
dma.h
s390/pci: define isa_dma_bridge_buggy
2013-01-08 10:57:09 +01:00
eadm.h
s390/scm_block: do not hide eadm subchannel dependency
2013-11-15 14:08:42 +01:00
ebcdic.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
elf.h
s390: move sys_call_table and last_break from thread_info to thread_struct
2016-11-15 16:48:20 +01:00
emergency-restart.h
…
exec.h
…
extmem.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
facility.h
s390/facilities: optimize test_facility()
2015-12-18 14:59:23 +01:00
fb.h
…
fcx.h
s390: use canonical include guard style
2016-06-13 15:58:17 +02:00
ftrace.h
s390/dumpstack: get rid of return_address again
2016-10-17 14:44:33 +02:00
futex.h
s390/uaccess: simplify control register updates
2014-05-20 08:58:46 +02:00
gmap.h
KVM: s390: backup the currently enabled gmap when scheduled out
2016-06-20 09:55:24 +02:00
hardirq.h
hardirq: Make hardirq bits generic
2013-11-13 20:21:46 +01:00
hugetlb.h
s390/mm: add support for 2GB hugepages
2016-07-06 08:46:43 +02:00
hw_irq.h
s390: convert interrupt handling to use generic hardirq
2013-08-22 12:20:04 +02:00
idals.h
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
idle.h
s390/udelay: make udelay have busy loop semantics
2015-10-14 14:32:13 +02:00
io.h
s390/io: Add pci_iomap_wc() and pci_iomap_wc_range()
2015-08-28 08:04:48 +02:00
ipl.h
s390: fix initrd corruptions with gcov/kcov instrumented kernels
2016-12-12 12:11:20 +01:00
irq_regs.h
…
irq.h
s390: use SPARSE_IRQ
2016-06-13 15:58:24 +02:00
irqflags.h
s390/irqflags: optimize irq restore
2016-01-19 12:14:01 +01:00
isc.h
s390/pci: PCI adapter interrupts for MSI/MSI-X
2012-11-30 17:47:21 +01:00
itcw.h
…
jump_label.h
s390: add explicit <linux/stringify.h> for jump label
2016-06-13 15:58:16 +02:00
Kbuild
s390: use generic asm-offsets.h
2016-11-29 07:52:57 +01:00
kdebug.h
…
kexec.h
kexec: allocate the kexec control page with KEXEC_CONTROL_MEMORY_GFP
2015-04-23 16:52:01 +02:00
kmap_types.h
…
kprobes.h
s390: stack address vs thread_info
2016-06-28 09:33:00 +02:00
kvm_host.h
Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
2016-09-13 15:20:55 +02:00
kvm_para.h
s390/diag: add a statistic for diagnose calls
2015-10-14 14:32:06 +02:00
linkage.h
s390/kernel: move EX_TABLE macros to linkage.h header file
2015-07-22 09:57:59 +02:00
livepatch.h
livepatch: reuse module loader code to write relocations
2016-04-01 15:00:11 +02:00
local64.h
…
local.h
…
lowcore.h
s390: move thread_info into task_struct
2016-11-11 16:37:41 +01:00
mman.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
mmu_context.h
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mmu.h
s390/mm,kvm: flush gmap address space with IDTE
2016-08-24 09:23:55 +02:00
mmzone.h
s390/numa: add core infrastructure
2015-08-03 18:40:25 +02:00
module.h
Make most arch asm/module.h files use asm-generic/module.h
2012-09-28 14:31:03 +09:30
nmi.h
s390/nmi: remove casts
2015-10-27 09:33:55 +01:00
numa.h
s390/numa: use correct type for node_to_cpumask_map
2015-09-23 09:18:56 +02:00
os_info.h
s390/dump: streamline oldmem copy functions
2015-11-27 09:24:12 +01:00
page.h
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
pci_clp.h
s390/pci: query fmb length
2016-12-14 16:33:41 +01:00
pci_debug.h
s390/pci: remove CONFIG_PCI_DEBUG dependancy
2013-10-24 17:17:16 +02:00
pci_dma.h
s390/pci_dma: fix DMA table corruption with > 4 TB main memory
2015-11-27 09:24:15 +01:00
pci_insn.h
s390/pci: cleanup function information block
2013-10-24 17:17:17 +02:00
pci_io.h
s390/pci: improve ZPCI_* macros
2016-01-26 12:45:49 +01:00
pci.h
s390/pci: query fmb length
2016-12-14 16:33:41 +01:00
percpu.h
s390/percpu: remove this_cpu_cmpxchg_double_4
2016-03-02 06:44:30 -06:00
perf_event.h
s390/perf: remove perf_release/reserver_sampling functions
2016-06-28 09:32:25 +02:00
pgalloc.h
s390: Remove VLAIS in ptff() and clear_table()
2016-12-07 07:22:30 +01:00
pgtable.h
s390/mm: merge local / non-local IDTE helper
2016-08-24 09:23:56 +02:00
preempt.h
s390/preempt: move preempt_count to the lowcore
2016-11-11 16:37:40 +01:00
processor.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2016-12-13 16:33:33 -08:00
ptrace.h
s390: remove all usages of PSW_ADDR_INSN
2016-01-19 12:14:03 +01:00
qdio.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
reset.h
s390/dump: rework CPU register dump code
2015-11-27 09:24:14 +01:00
runtime_instr.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
rwsem.h
locking/rwsem: Remove rwsem_atomic_add() and rwsem_atomic_update()
2016-06-08 15:16:59 +02:00
schid.h
UAPI: (Scripted) Disintegrate arch/s390/include/asm
2012-10-09 09:47:31 +01:00
sclp.h
s390/smp: initialize cpu_present_mask in setup_arch
2016-12-07 07:23:07 +01:00
scsw.h
s390/dasd: channel path aware error recovery
2016-12-12 12:05:03 +01:00
seccomp.h
s390/seccomp: include generic seccomp header file
2016-04-01 17:20:55 +02:00
sections.h
s390: add proper __ro_after_init support
2016-06-13 15:58:23 +02:00
segment.h
…
serial.h
s390: convert interrupt handling to use generic hardirq
2013-08-22 12:20:04 +02:00
setup.h
s390/console: Make preferred console handling more consistent
2016-07-13 10:58:07 +02:00
shmparam.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
signal.h
s390: switch to generic old sigaction()
2013-02-03 18:16:14 -05:00
sigp.h
s390/smp: use basic blocks for sigp inline assemblies
2016-06-28 09:32:35 +02:00
smp.h
s390/smp: initialize cpu_present_mask in setup_arch
2016-12-07 07:23:07 +01:00
sparsemem.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
spinlock_types.h
s390/rwlock: use directed yield for write-locked rwlocks
2014-09-25 10:52:05 +02:00
spinlock.h
locking/spinlocks, s390: Implement vcpu_is_preempted(cpu)
2016-11-22 12:48:06 +01:00
stp.h
s390/time: remove ETR support
2016-06-13 15:58:21 +02:00
string.h
s390/lib: add missing memory barriers to string inline assemblies
2016-12-14 16:33:41 +01:00
switch_to.h
s390/fpu: split fpu-internal.h into fpu internals, api, and type headers
2015-10-16 09:41:12 +02:00
syscall.h
s390/syscalls: simplify syscall_get_arch()
2015-03-30 13:26:07 +02:00
sysinfo.h
s390/sysinfo: show partition extended name and UUID if available
2016-12-07 12:29:47 +01:00
termios.h
UAPI: (Scripted) Disintegrate arch/s390/include/asm
2012-10-09 09:47:31 +01:00
thread_info.h
s390/thread_info: get rid of THREAD_ORDER define
2016-11-23 16:02:21 +01:00
timex.h
s390: Remove VLAIS in ptff() and clear_table()
2016-12-07 07:22:30 +01:00
tlb.h
mm: remove the page size change check in tlb_remove_page
2016-12-12 18:55:07 -08:00
tlbflush.h
s390/mm,kvm: flush gmap address space with IDTE
2016-08-24 09:23:55 +02:00
topology.h
s390/numa: establish cpu to node mapping early
2016-12-07 07:23:25 +01:00
types.h
s390: remove 31 bit support
2015-03-25 11:49:33 +01:00
uaccess.h
s390/uaccess: make setfs macro return void
2016-11-23 16:02:19 +01:00
unaligned.h
…
unistd.h
s390: ignore pkey system calls
2016-10-17 11:25:25 +02:00
uprobes.h
uprobes: remove function declarations from arch/{mips,s390}
2016-10-07 18:46:30 -07:00
user.h
s390/comments: unify copyright messages and remove file names
2012-07-20 11:15:04 +02:00
vdso.h
s390/time: steer clocksource on STP sync events
2016-10-28 10:09:02 +02:00
vga.h
vga: compile fix, disable vga for s390
2012-11-30 17:47:28 +01:00
vtime.h
vtime: Describe overriden functions in dedicated arch headers
2013-08-14 17:14:53 +02:00
vtimer.h
s390/idle: consolidate idle functions and definitions
2014-10-09 09:14:03 +02:00
vx-insn.h
RAID/s390: add SIMD implementation for raid6 gen/xor
2016-08-29 11:05:04 +02:00
xor.h
s390/xor: optimized xor routing using the XC instruction
2016-02-23 08:56:17 +01:00