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alistair23-linux/arch/arm64/include/asm
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Linus Torvalds ba9f6f8954 Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 
Pull siginfo updates from Eric Biederman:
 "I have been slowly sorting out siginfo and this is the culmination of
  that work.

  The primary result is in several ways the signal infrastructure has
  been made less error prone. The code has been updated so that manually
  specifying SEND_SIG_FORCED is never necessary. The conversion to the
  new siginfo sending functions is now complete, which makes it
  difficult to send a signal without filling in the proper siginfo
  fields.

  At the tail end of the patchset comes the optimization of decreasing
  the size of struct siginfo in the kernel from 128 bytes to about 48
  bytes on 64bit. The fundamental observation that enables this is by
  definition none of the known ways to use struct siginfo uses the extra
  bytes.

  This comes at the cost of a small user space observable difference.
  For the rare case of siginfo being injected into the kernel only what
  can be copied into kernel_siginfo is delivered to the destination, the
  rest of the bytes are set to 0. For cases where the signal and the
  si_code are known this is safe, because we know those bytes are not
  used. For cases where the signal and si_code combination is unknown
  the bits that won't fit into struct kernel_siginfo are tested to
  verify they are zero, and the send fails if they are not.

  I made an extensive search through userspace code and I could not find
  anything that would break because of the above change. If it turns out
  I did break something it will take just the revert of a single change
  to restore kernel_siginfo to the same size as userspace siginfo.

  Testing did reveal dependencies on preferring the signo passed to
  sigqueueinfo over si->signo, so bit the bullet and added the
  complexity necessary to handle that case.

  Testing also revealed bad things can happen if a negative signal
  number is passed into the system calls. Something no sane application
  will do but something a malicious program or a fuzzer might do. So I
  have fixed the code that performs the bounds checks to ensure negative
  signal numbers are handled"

* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (80 commits)
  signal: Guard against negative signal numbers in copy_siginfo_from_user32
  signal: Guard against negative signal numbers in copy_siginfo_from_user
  signal: In sigqueueinfo prefer sig not si_signo
  signal: Use a smaller struct siginfo in the kernel
  signal: Distinguish between kernel_siginfo and siginfo
  signal: Introduce copy_siginfo_from_user and use it's return value
  signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE
  signal: Fail sigqueueinfo if si_signo != sig
  signal/sparc: Move EMT_TAGOVF into the generic siginfo.h
  signal/unicore32: Use force_sig_fault where appropriate
  signal/unicore32: Generate siginfo in ucs32_notify_die
  signal/unicore32: Use send_sig_fault where appropriate
  signal/arc: Use force_sig_fault where appropriate
  signal/arc: Push siginfo generation into unhandled_exception
  signal/ia64: Use force_sig_fault where appropriate
  signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn
  signal/ia64: Use the generic force_sigsegv in setup_frame
  signal/arm/kvm: Use send_sig_mceerr
  signal/arm: Use send_sig_fault where appropriate
  signal/arm: Use force_sig_fault where appropriate
  ...
 		2018-10-24 11:22:39 +01:00
..
xen arm64: xen: Use existing helper to check interrupt status 2018-10-03 16:14:11 +01:00
Kbuild arm64: locking: Replace ticket lock implementation with qspinlock 2018-07-05 10:05:06 +01:00
acenv.h ARM64 / ACPI: Get RSDP and ACPI boot-time tables 2015-03-25 11:49:30 +00:00
acpi.h arm64: acpi: fix alignment fault in accessing ACPI 2018-07-23 15:34:12 +01:00
alternative.h arm64: Avoid flush_icache_range() in alternatives patching code 2018-06-27 18:21:53 +01:00
arch_gicv3.h irqchip/gic-v3: Probe for SCR_EL3 being clear before resetting AP0Rn 2018-03-22 13:46:18 +00:00
arch_timer.h First batch of KVM changes for 4.15 2017-11-16 13:00:24 -08:00
arm-cci.h arm-cci: Get rid of secure transactions for PMU driver 2015-03-27 13:44:35 +00:00
arm_dsu_pmu.h perf: ARM DynamIQ Shared Unit PMU support 2018-01-02 16:43:12 +00:00
asm-bug.h arm64: asm-bug: Renumber macro local labels to avoid clashes 2017-10-25 15:57:15 +01:00
asm-offsets.h
…
asm-uaccess.h arm64: mm: Add additional parameter to uaccess_ttbr0_disable 2018-01-17 13:57:49 +01:00
assembler.h arm64: cpu_errata: Remove ARM64_MISMATCHED_CACHE_LINE_SIZE 2018-09-19 18:21:49 +01:00
atomic.h atomics/treewide: Make conditional inc/dec ops optional 2018-06-21 14:25:24 +02:00
atomic_ll_sc.h arm64: Remove redundant mov from LL/SC cmpxchg 2017-05-15 18:30:10 +01:00
atomic_lse.h arm64: lse: Add early clobbers to some input/output asm operands 2018-05-21 19:00:36 +01:00
barrier.h arm64: barrier: Implement smp_cond_load_relaxed 2018-07-05 10:05:05 +01:00
bitops.h locking/atomics/arm64, arm64/bitops: Include <asm-generic/bitops/ext2-atomic-setbit.h> 2018-06-21 12:52:12 +02:00
bitrev.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
boot.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
brk-imm.h arm64: move brk immediate argument definitions to separate header 2016-02-23 17:43:25 +00:00
bug.h arm64: Add ASM_BUG() 2017-08-08 16:28:13 +01:00
cache.h arm64: cpufeature: Fix handling of CTR_EL0.IDC field 2018-10-16 11:53:31 +01:00
cacheflush.h arm64: IPI each CPU after invalidating the I-cache for kernel mappings 2018-07-05 17:24:36 +01:00
checksum.h arm64: add missing conversion to __wsum in ip_fast_csum() 2017-06-29 16:32:43 +01:00
clocksource.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg.h arm64: cmpwait: Clear event register before arming exclusive monitor 2018-05-16 12:21:19 +01:00
compat.h arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ 2018-10-01 11:44:02 +01:00
cpu.h arm64/sve: Probe SVE capabilities and usable vector lengths 2017-11-03 15:24:17 +00:00
cpu_ops.h ARM64: kernel: unify ACPI and DT cpus initialization 2015-05-19 16:09:29 +01:00
cpucaps.h arm64: arch_timer: Add workaround for ARM erratum 1188873 2018-10-01 13:38:47 +01:00
cpufeature.h arm64/cpufeatures: Factorize emulate_mrs() 2018-09-21 11:05:58 +01:00
cpuidle.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cputype.h arm64: arch_timer: Add workaround for ARM erratum 1188873 2018-10-01 13:38:47 +01:00
current.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
daifflags.h arm64: daifflags: Use irqflags functions for daifflags 2018-10-03 16:08:52 +01:00
dcc.h arm64: dcc: simplify accessors 2016-09-09 11:41:13 +01:00
debug-monitors.h arm64: Add uprobe support 2016-11-07 18:15:21 +00:00
device.h xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..." 2017-05-02 11:14:42 +02:00
dma-mapping.h dma-mapping: move dma_mark_clean to dma-direct.h 2018-01-10 16:41:12 +01:00
dmi.h arm64: dmi: Add SMBIOS/DMI support 2014-11-05 09:03:25 +01:00
efi.h efi: Deduplicate efi_open_volume() 2018-07-22 14:13:43 +02:00
elf.h arm64: signal: Report signal frame size to userspace via auxv 2018-06-01 15:53:10 +01:00
esr.h arm64: Trap WFI executed in userspace 2018-10-01 16:52:24 +01:00
exception.h arm64: kernel: Prepare for a DISR user 2018-01-16 15:07:12 +00:00
exec.h arm64: suspend: Reconfigure PSTATE after resume from idle 2016-10-20 09:50:54 +01:00
extable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fb.h
…
fixmap.h arm64: kaslr: Put kernel vectors address in separate data page 2017-12-11 13:41:20 +00:00
fpsimd.h arm64: move sve_user_{enable,disable} to <asm/fpsimd.h> 2018-07-12 14:40:39 +01:00
fpsimdmacros.h arm64/sve: Write ZCR_EL1 on context switch only if changed 2018-05-17 18:19:53 +01:00
ftrace.h arm64: Fix misspellings in comments. 2016-03-04 18:19:17 +00:00
futex.h arm64: futex: Mask __user pointers prior to dereference 2018-02-06 22:53:42 +00:00
hardirq.h arm64: kdump: implement machine_crash_shutdown() 2017-04-05 18:29:15 +01:00
hugetlb.h arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables 2018-02-16 18:13:57 +00:00
hw_breakpoint.h perf/hw_breakpoint: Remove default hw_breakpoint_arch_parse() 2018-06-26 09:07:58 +02:00
hwcap.h arm64/HWCAP: Use system wide safe values 2015-10-21 15:35:58 +01:00
hypervisor.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
insn.h arm64: insn: Don't fallback on nosync path for general insn patching 2018-07-05 17:24:48 +01:00
io.h xen: don't include <xen/xen.h> from <asm/io.h> and <asm/dma-mapping.h> 2018-09-26 08:45:18 -06:00
irq.h arm64: Use the new GENERIC_IRQ_MULTI_HANDLER 2018-08-03 12:14:09 +02:00
irq_work.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irqflags.h arm64: Move the async/fiq helpers to explicitly set process context flags 2017-11-02 15:55:41 +00:00
jump_label.h arm64/kernel: jump_label: Switch to relative references 2018-09-27 17:56:47 +02:00
kasan.h kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage 2018-02-06 18:32:43 -08:00
kernel-pgtable.h arm64/mm: Separate boot-time page tables from swapper_pg_dir 2018-09-25 15:10:54 +01:00
kexec.h arm64: kdump: implement machine_crash_shutdown() 2017-04-05 18:29:15 +01:00
kgdb.h arm64: kgdb: Match pstate size with gdbserver protocol 2016-06-16 19:20:51 +01:00
kprobes.h arm64/kprobes: Remove jprobe implementation 2018-06-21 12:33:07 +02:00
kvm_arm.h arm64: KVM: Enable Common Not Private translations 2018-09-18 12:03:34 +01:00
kvm_asm.h Small update for KVM. 2018-06-12 11:34:04 -07:00
kvm_coproc.h arm64: KVM: common infrastructure for handling AArch32 CP14/CP15 2014-07-11 04:57:44 -07:00
kvm_emulate.h arm64/cpufeatures: Introduce ESR_ELx_SYS64_ISS_RT() 2018-09-21 11:05:25 +01:00
kvm_host.h arm64 updates for 4.20: 2018-10-22 17:30:06 +01:00
kvm_hyp.h KVM: arm/arm64: Avoid VGICv3 save/restore on VHE with no IRQs 2018-03-19 10:53:21 +00:00
kvm_mmio.h KVM: arm/arm64: Export mmio_read/write_bus 2016-05-20 15:39:42 +02:00
kvm_mmu.h arm64: KVM: Enable Common Not Private translations 2018-09-18 12:03:34 +01:00
linkage.h arm64: relax assembly code alignment from 16 byte to 4 byte 2017-09-18 11:20:19 +01:00
lse.h arm64: lse: Include compiler_types.h and export.h for out-of-line LL/SC 2018-03-27 13:14:49 +01:00
memblock.h
…
memory.h arm64: KVM: Add support for Stage-2 control of memory types and cacheability 2018-07-09 11:37:41 +01:00
mmu.h arm64/mm: Separate boot-time page tables from swapper_pg_dir 2018-09-25 15:10:54 +01:00
mmu_context.h arm64: mm: Support Common Not Private translations 2018-09-18 12:02:27 +01:00
mmzone.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.h arm64/kernel: rename module_emit_adrp_veneer->module_emit_veneer_for_adrp 2018-04-24 19:07:35 +01:00
neon.h arm64: drop unused kernel_neon_begin_partial() macro 2018-07-31 10:13:50 +01:00
numa.h arm64: numa: separate out updates to percpu nodeid and NUMA node cpumap 2018-07-06 13:18:18 +01:00
page-def.h arm64: factor out PAGE_* and CONT_* definitions 2017-08-15 18:35:00 +01:00
page.h arm64: Kconfig: Remove ARCH_HAS_HOLES_MEMORYMODEL 2018-09-21 12:02:45 +01:00
paravirt.h x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
pci.h PCI: remove PCI_DMA_BUS_IS_PHYS 2018-05-07 07:15:41 +02:00
percpu.h arm64: move percpu cmpxchg implementation from cmpxchg.h to percpu.h 2018-03-27 13:15:29 +01:00
perf_event.h arm64/bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type 2017-12-05 15:02:41 +01:00
pgalloc.h arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables 2018-02-16 18:13:57 +00:00
pgtable-hwdef.h arm64: mm: Support Common Not Private translations 2018-09-18 12:02:27 +01:00
pgtable-prot.h arm64: KVM: Avoid marking pages as XN in Stage-2 if CTR_EL0.DIC is set 2018-07-09 11:37:42 +01:00
pgtable-types.h arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
pgtable.h arm64: mm: Use #ifdef for the __PAGETABLE_P?D_FOLDED defines 2018-10-05 17:19:40 +01:00
probes.h arm64: Remove reference to asm/opcodes.h 2016-12-05 10:42:34 +00:00
proc-fns.h arm64: mm: Move ASID from TTBR0 to TTBR1 2017-12-11 13:40:25 +00:00
processor.h arm64: cpu: Move errata and feature enable callbacks closer to callers 2018-09-14 17:46:22 +01:00
ptdump.h arm64: dump: Add checking for writable and exectuable pages 2016-11-07 18:15:04 +00:00
ptrace.h arm64: ssbd: Add support for PSTATE.SSBS rather than trapping to EL3 2018-09-14 17:46:19 +01:00
sdei.h arm64: Add stack information to on_accessible_stack 2018-07-26 11:36:07 +01:00
seccomp.h arm64: add seccomp support 2014-11-28 10:24:59 +00:00
sections.h arm64: mmu: add the entry trampolines start/end section markers into sections.h 2018-01-14 18:49:50 +00:00
shmparam.h arm64: fix COMPAT_SHMLBA definition for large pages 2015-12-02 14:00:10 +00:00
signal32.h arm64: compat: Remove leftover variable declaration 2017-08-10 18:17:32 +01:00
simd.h arm64: neon: Fix function may_use_simd() return error status 2018-07-11 17:02:02 +01:00
smp.h arm64: kexec: have own crash_smp_send_stop() for crash dump for nonpanic cores 2017-08-21 18:01:04 +01:00
smp_plat.h arm64: remove dead-code depending on CONFIG_UP_LATE_INIT 2015-07-29 18:32:09 +01:00
sparsemem.h arm64: add kconfig symbol to configure physical address size 2017-12-22 17:30:33 +00:00
spinlock.h arm64: locking: Replace ticket lock implementation with qspinlock 2018-07-05 10:05:06 +01:00
spinlock_types.h arm64: locking: Replace ticket lock implementation with qspinlock 2018-07-05 10:05:06 +01:00
stack_pointer.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stackprotector.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stacktrace.h arm64: Add stack information to on_accessible_stack 2018-07-26 11:36:07 +01:00
stage2_pgtable-nopmd.h kvm: arm64: Get rid of fake page table levels 2016-04-21 14:58:21 +02:00
stage2_pgtable-nopud.h kvm: arm64: Get rid of fake page table levels 2016-04-21 14:58:21 +02:00
stage2_pgtable.h kvm: arm64: Get rid of fake page table levels 2016-04-21 14:58:21 +02:00
stat.h compat: Move compat_timespec/ timeval to compat_time.h 2018-04-19 13:29:54 +02:00
string.h arm64: uaccess: Implement *_flushcache variants 2017-08-09 12:16:26 +01:00
suspend.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sync_bitops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall.h arm64: implement syscall wrappers 2018-07-12 14:49:48 +01:00
syscall_wrapper.h arm64: implement syscall wrappers 2018-07-12 14:49:48 +01:00
sysreg.h arm64: Trap WFI executed in userspace 2018-10-01 16:52:24 +01:00
system_misc.h signal/arm64: Push siginfo generation into arm64_notify_die 2018-09-27 21:52:54 +02:00
thread_info.h Small update for KVM. 2018-06-12 11:34:04 -07:00
timex.h arm64: Use physical counter for in-kernel reads when booted in EL2 2017-11-06 16:23:09 +01:00
tlb.h arm64: tlb: Avoid synchronous TLBIs when freeing page tables 2018-09-11 16:49:12 +01:00
tlbflush.h arm64: tlb: Rewrite stale comment in asm/tlbflush.h 2018-09-11 16:49:12 +01:00
topology.h sched/topology, arch/arm64: Rebuild the sched_domain hierarchy when the CPU capacity changes 2018-09-10 11:05:47 +02:00
traps.h signal/arm64: Add and use arm64_force_sig_ptrace_errno_trap 2018-09-27 21:55:15 +02:00
uaccess.h Revert "arm64: uaccess: implement unsafe accessors" 2018-10-10 17:52:08 +01:00
unistd.h arm64: rseq: Implement backend rseq calls and select HAVE_RSEQ 2018-07-11 13:29:34 +01:00
unistd32.h arm64: convert compat wrappers to C 2018-07-12 14:49:48 +01:00
uprobes.h arm64: Add uprobe support 2016-11-07 18:15:21 +00:00
vdso.h
…
vdso_datapage.h arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO 2016-07-12 16:06:32 +01:00
virt.h arm64: capabilities: Change scope of VHE to Boot CPU feature 2018-03-26 18:01:41 +01:00
vmap_stack.h arm64: Add vmap_stack header file 2018-01-13 10:45:03 +00:00
word-at-a-time.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00