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linux/arch/powerpc/kernel
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Nicholas Piggin 66f93c5a02 powerpc/64: Fix kernel stack 16-byte alignment 
Commit 4c2de74cc8 ("powerpc/64: Interrupts save PPR on stack rather
than thread_struct") changed sizeof(struct pt_regs) % 16 from 0 to 8,
which causes the interrupt frame allocation on kernel entry to put the
kernel stack out of alignment.

Quadword (16-byte) alignment for the stack is required by both the
64-bit v1 ABI (v1.9 § 3.2.2) and the 64-bit v2 ABI (v1.1 § 2.2.2.1).

Add a pad field to fix alignment, and add a BUILD_BUG_ON to catch this
in future.

Fixes: 4c2de74cc8 ("powerpc/64: Interrupts save PPR on stack rather than thread_struct")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-11-15 14:48:43 +11:00
..
trace powerpc/ftrace: Handle large kernel configs 2018-10-20 13:26:47 +11:00
vdso32 powerpc/vdso: Correct call frame information 2018-09-14 13:47:31 +10:00
vdso64 powerpc/vdso: Correct call frame information 2018-09-14 13:47:31 +10:00
.gitignore
align.c powerpc/sstep: Introduce GETTYPE macro 2018-06-03 21:19:40 +10:00
asm-offsets.c powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
btext.c powerpc: don't use ioremap_prot() nor __ioremap() unless really needed. 2018-10-14 18:04:09 +11:00
cacheinfo.c powerpc/cacheinfo: Report the correct shared_cpu_map on big-cores 2018-10-13 22:21:25 +11:00
cacheinfo.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu_setup_6xx.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
cpu_setup_44x.S
cpu_setup_fsl_booke.S powerpc: Free up CPU feature bits on 64-bit machines 2018-03-24 00:38:51 +11:00
cpu_setup_pa6t.S
cpu_setup_power.S powerpc: Turn off CPU_FTR_P9_TM_HV_ASSIST in non-hypervisor mode 2018-10-09 16:04:27 +11:00
cpu_setup_ppc970.S
cputable.c Merge branch 'topic/ppc-kvm' into next 2018-07-19 14:37:57 +10:00
crash_dump.c powerpc: don't use ioremap_prot() nor __ioremap() unless really needed. 2018-10-14 18:04:09 +11:00
crash.c powerpc: remove kdump.h from page.h 2018-07-30 22:47:53 +10:00
dbell.c powerpc: Introduce msgsnd/doorbell barrier primitives 2017-04-13 23:34:33 +10:00
dma-iommu.c powerpc: rename dma_direct_ to dma_nommu_ 2018-01-10 16:41:14 +01:00
dma-swiotlb.c swiotlb: remove the overflow buffer 2018-10-19 08:43:46 +02:00
dma.c PCI: Call dma_debug_add_bus() for pci_bus_type from PCI core 2018-07-30 15:58:01 -05:00
dt_cpu_ftrs.c memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc* 2018-10-31 08:54:15 -07:00
eeh_cache.c powerpc/eeh: Fix misleading comment in __eeh_addr_cache_get_device() 2018-03-27 23:44:58 +11:00
eeh_dev.c powerpc/eeh: Cleanup list_head field names 2018-10-13 22:21:25 +11:00
eeh_driver.c powerpc/eeh: Cleanup control flow in eeh_handle_normal_event() 2018-10-13 22:21:25 +11:00
eeh_event.c powerpc/eeh: Manage EEH_PE_RECOVERING inside eeh_handle_normal_event() 2018-03-27 23:44:58 +11:00
eeh_pe.c powerpc/eeh: Cleanup eeh_ops.wait_state() 2018-10-13 22:21:25 +11:00
eeh_sysfs.c powerpc/eeh: Add EEH notify resume sysfs 2018-01-27 20:02:52 +11:00
eeh.c powerpc/eeh: Cleanup eeh_ops.wait_state() 2018-10-13 22:21:25 +11:00
entry_32.S powerpc/traps: merge unrecoverable_exception() and nonrecoverable_exception() 2018-10-03 15:40:01 +10:00
entry_64.S powerpc/64: Interrupts save PPR on stack rather than thread_struct 2018-10-14 18:04:09 +11:00
epapr_hcalls.S
epapr_paravirt.c
exceptions-64e.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
exceptions-64s.S powerpc/64s/hash: Convert SLB miss handlers to C 2018-10-14 18:04:09 +11:00
fadump.c powerpc/fadump: re-register firmware-assisted dump if already registered 2018-09-19 22:08:12 +10:00
firmware.c
fpu.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
fsl_booke_entry_mapping.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head_8xx.S powerpc/8xx: Use patch_site for perf counters setup 2018-10-26 21:58:58 +11:00
head_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
head_40x.S powerpc/405: move PPC405_ERR77 in asm-405.h 2018-07-30 22:48:13 +10:00
head_44x.S
head_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
head_booke.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head_fsl_booke.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
hw_breakpoint.c perf/arch/powerpc: Implement hw_breakpoint_arch_parse() 2018-06-26 09:07:55 +02:00
idle_6xx.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
idle_book3e.S powerpc/64s: make PACA_IRQ_HARD_DIS track MSR[EE] closely 2018-07-24 22:03:14 +10:00
idle_book3s.S Merge branch 'fixes' into next 2018-08-13 15:59:06 +10:00
idle_e500.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
idle_power4.S powerpc/64s: Fix PACA_IRQ_HARD_DIS accounting in idle_power4() 2018-08-14 15:36:02 +10:00
idle.c
ima_kexec.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
io-workarounds.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
io.c
iomap.c powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo} 2018-04-05 14:59:26 +10:00
iommu.c powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
irq.c powerpc/64: Disable irq restore warning for now 2018-08-07 21:49:24 +10:00
isa-bridge.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
jump_label.c
kexec_elf_64.c kernel/kexec_file.c: allow archs to set purgatory load address 2018-04-13 17:10:28 -07:00
kgdb.c powerpc/kgdb: add kgdb_arch_set/remove_breakpoint() 2018-10-20 13:26:47 +11:00
kprobes-ftrace.c bpf/error-inject/kprobes: Clear current_kprobe and enable preempt in kprobe 2018-06-21 12:33:19 +02:00
kprobes.c bpf/error-inject/kprobes: Clear current_kprobe and enable preempt in kprobe 2018-06-21 12:33:19 +02:00
kvm_emul.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
kvm.c powerpc/kvm: Prefer fault_in_pages_readable function 2018-05-17 14:12:40 +10:00
l2cr_6xx.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
legacy_serial.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
machine_kexec_32.c
machine_kexec_64.c powerpc/64/kexec: fix race in kexec when XIVE is shutdown 2018-05-10 23:25:08 +10:00
machine_kexec_file_64.c powerpc/kexec: Use common error handling code in setup_new_fdt() 2018-08-10 22:12:36 +10:00
machine_kexec.c powerpc: remove kdump.h from page.h 2018-07-30 22:47:53 +10:00
Makefile powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
mce_power.c powerpc/64s/hash: Do not use PPC_INVALIDATE_ERAT on CPUs before POWER9 2018-10-04 23:16:53 +10:00
mce.c powerpc/pseries: Flush SLB contents on SLB MCE errors. 2018-09-19 21:59:22 +10:00
misc_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
misc_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
misc.S powerpc/misc: merge reloc_offset() and add_reloc_offset() 2018-06-04 00:39:17 +10:00
module_32.c powerpc/sparse: Fix plain integer as NULL pointer warning 2018-05-25 12:04:38 +10:00
module_64.c powerpc/64/module: REL32 relocation range check 2018-10-20 13:26:47 +11:00
module.c powerpc64/module elfv1: Set opd addresses after module relocation 2018-10-20 13:26:47 +11:00
module.lds powerpc/modules: Fix alignment of .toc section in kernel modules 2017-12-11 13:03:35 +11:00
msi.c
nvram_64.c powerpc/64: Fix strncpy() related build failures with GCC 8.1 2018-06-03 20:40:24 +10:00
of_platform.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
optprobes_head.S powerpc/64: Rename soft_enabled to irq_soft_mask 2018-01-19 22:37:01 +11:00
optprobes.c powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace 2017-11-12 23:51:41 +11:00
paca.c memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
pci_32.c memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
pci_64.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
pci_dn.c powerpc/pci: Separate SR-IOV Calls 2017-12-11 13:03:35 +11:00
pci_of_scan.c pci-v4.16-changes 2018-02-06 09:59:40 -08:00
pci-common.c powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
pci-hotplug.c powerpc/pci: Unroll two pass loop when scanning bridges 2017-12-18 23:05:52 -06:00
pmc.c
ppc32.h
ppc_save_regs.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
proc_powerpc.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
process.c powerpc fixes for 4.20 #2 2018-11-02 09:19:35 -07:00
prom_init_check.sh powerpc: Check prom_init for disallowed sections 2018-10-19 00:56:17 +11:00
prom_init.c powerpc/prom_init: Generate "phandle" instead of "linux, phandle" 2018-10-19 00:56:17 +11:00
prom_parse.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
prom.c memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc* 2018-10-31 08:54:15 -07:00
ptrace32.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ptrace.c powerpc/64: Interrupts save PPR on stack rather than thread_struct 2018-10-14 18:04:09 +11:00
reloc_32.S
reloc_64.S powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
rtas_flash.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
rtas_pci.c powerpc/kernel: Change retrieval of pci_dn 2017-08-31 14:26:40 +10:00
rtas-proc.c powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
rtas-rtc.c powerpc: use time64_t in read_persistent_clock 2018-06-03 20:43:33 +10:00
rtas.c powerpc/rtas: Fix a potential race between CPU-Offline & Migration 2018-10-13 22:21:25 +11:00
rtasd.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
security.c powerpc/64s: Add support for software count cache flush 2018-08-08 00:32:26 +10:00
setup_32.c memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc* 2018-10-31 08:54:15 -07:00
setup_64.c powerpc/64: Fix kernel stack 16-byte alignment 2018-11-15 14:48:43 +11:00
setup-common.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
setup.h powerpc/tau: Synchronize function prototypes and body 2018-05-25 12:04:43 +10:00
signal_32.c powerpc: Remove -Wattribute-alias pragmas 2018-06-25 23:21:13 +09:00
signal_64.c powerpc: Remove -Wattribute-alias pragmas 2018-06-25 23:21:13 +09:00
signal.c rseq: Avoid infinite recursion when delivering SIGSEGV 2018-06-22 19:04:22 +02:00
signal.h powerpc/syscalls: signal_{32, 64} - switch to SYSCALL_DEFINE 2018-05-10 23:25:13 +10:00
smp-tbsync.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp.c powerpc: Fix stack protector crashes on CPU hotplug 2018-10-21 19:32:00 +11:00
stacktrace.c powerpc/64s: Fix build failures with CONFIG_NMI_IPI=n 2018-06-19 23:03:50 +10:00
suspend.c
swsusp_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
swsusp_64.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nmi.h> 2017-03-02 08:42:30 +01:00
swsusp_asm64.S powerpc/64s/hash: Simplify slb_flush_and_rebolt() 2018-10-14 18:04:09 +11:00
swsusp_booke.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
swsusp.c powerpc/swsusp: Include suspend.h to silence sparse warnings 2017-03-20 19:02:49 +11:00
sys_ppc32.c powerpc/syscalls: kill ppc32_select() 2018-05-10 23:25:15 +10:00
syscalls.c powerpc: Remove -Wattribute-alias pragmas 2018-06-25 23:21:13 +09:00
sysfs.c Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
systbl_chk.c powerpc/syscalls: Add COMPAT_SPU_NEW() macro 2018-05-10 23:25:14 +10:00
systbl_chk.sh powerpc: Make it clearer that systbl check errors are errors 2018-05-10 23:25:16 +10:00
systbl.S powerpc/syscalls: Add COMPAT_SPU_NEW() macro 2018-05-10 23:25:14 +10:00
tau_6xx.c powerpc/tau: Make some function static 2018-05-25 12:04:44 +10:00
time.c powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected 2018-10-20 13:26:47 +11:00
tm.S Merge branch 'fixes' into next 2018-10-09 16:51:05 +11:00
traps.c powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
udbg_16550.c
udbg.c
uprobes.c powerpc/uprobes: Implement arch_uretprobe_is_alive() 2017-08-24 16:19:21 +10:00
vdso.c powerpc: remove unneeded inclusions of cpu_has_feature.h 2018-07-30 22:47:54 +10:00
vecemu.c powerpc: Add a missing include header 2018-05-25 12:04:46 +10:00
vector.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
vmlinux.lds.S powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
watchdog.c powerpc: NMI IPI make NMI IPIs fully sychronous 2018-07-24 22:03:14 +10:00