linux-bl808/arch/powerpc/kernel
Nicholas Piggin 3db40c312c powerpc/64: Fix __check_irq_replay missing decrementer interrupt
If the decrementer wraps again and de-asserts the decrementer
exception while hard-disabled, __check_irq_replay() has a test to
notice the wrap when interrupts are re-enabled.

The decrementer check must be done when clearing the PACA_IRQ_HARD_DIS
flag, not when the PACA_IRQ_DEC flag is tested. Previously this worked
because the decrementer interrupt was always the first one checked
after clearing the hard disable flag, but HMI check was moved ahead of
that, which introduced this bug.

This can cause a missed decrementer interrupt if we soft-disable
interrupts then take an HMI which is recorded in irq_happened, then
hard-disable interrupts for > 4s to wrap the decrementer.

Fixes: e0e0d6b739 ("powerpc/64: Replay hypervisor maintenance interrupt first")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-04 12:55:49 +10:00
..
trace
vdso32
vdso64
.gitignore
align.c powerpc: Don't try to fix up misaligned load-with-reservation instructions 2017-04-04 23:16:57 +10:00
asm-offsets.c powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
audit.c [PATCH] audit signal recipients 2007-05-11 05:38:25 -04:00
btext.c
cacheinfo.c
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
compat_audit.c [PATCH] add SIGNAL syscall class (v3) 2007-05-11 05:38:25 -04:00
cpu_setup_6xx.S
cpu_setup_44x.S powerpc/44x: Add support for the AMCC APM821xx SoC 2010-10-13 08:47:09 -04:00
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S [POWERPC] pasemi: Enable one more hid bit 2007-04-24 21:31:49 +10:00
cpu_setup_power.S powerpc/powernv: Fix local TLB flush for boot and MCE on POWER9 2017-07-11 12:53:53 +10:00
cpu_setup_ppc970.S
cputable.c powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions 2017-05-25 23:07:45 +10:00
crash.c
crash_dump.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dbell.c powerpc: Introduce msgsnd/doorbell barrier primitives 2017-04-13 23:34:33 +10:00
dma-iommu.c powerpc: implement ->mapping_error 2017-06-28 06:54:33 -07:00
dma-swiotlb.c
dma.c powerpc: merge __dma_set_mask into dma_set_mask 2017-06-28 06:54:55 -07:00
dt_cpu_ftrs.c powerpc/powernv: Fix local TLB flush for boot and MCE on POWER9 2017-07-11 12:53:53 +10:00
eeh.c powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there 2017-04-11 07:46:03 +10:00
eeh_cache.c powerpc/eeh: Fix pr_debug()s in eeh_cache.c 2016-07-08 22:09:50 +10:00
eeh_dev.c
eeh_driver.c powerpc/eeh: Clean up and document event handling functions 2017-05-02 22:41:43 +10:00
eeh_event.c
eeh_pe.c powerpc/pci: Always print PHB and PE numbers as hexadecimal 2016-11-22 11:57:07 +11:00
eeh_sysfs.c
entry_32.S
entry_64.S
epapr_hcalls.S
epapr_paravirt.c
exceptions-64e.S
exceptions-64s.S powerpc/64s: Fix stack setup in watchdog soft_nmi_common() 2017-07-31 20:22:37 +10:00
fadump.c powerpc/fadump: use the correct VMCOREINFO_NOTE_SIZE for phdr 2017-07-12 16:25:59 -07:00
firmware.c powerpc: fix implicit use of cache.h in kernel/firmware.c 2011-10-31 19:30:41 -04:00
fpu.S
fsl_booke_entry_mapping.S
head_8xx.S
head_32.S
head_40x.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
head_44x.S
head_64.S
head_booke.h
head_fsl_booke.S
hw_breakpoint.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2017-02-18 21:37:14 +11:00
idle.c powerpc/idle: Convert use of typedef ctl_table to struct ctl_table 2013-07-01 11:10:35 +10:00
idle_6xx.S
idle_book3e.S powerpc: No need to use dot symbols when branching to a function 2014-04-23 10:05:16 +10:00
idle_book3s.S powerpc/perf: POWER9 PMU stops after idle workaround 2017-08-04 12:52:26 +10:00
idle_e500.S
idle_power4.S
ima_kexec.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
io-workarounds.c sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
io.c powerpc/powernv: Add PIO accessors for Power8 LPC bus 2013-08-14 14:58:08 +10:00
iomap.c powerpc: Move isa bridge definitions to separate include 2017-01-31 13:54:17 +11:00
iommu.c powerpc: implement ->mapping_error 2017-06-28 06:54:33 -07:00
irq.c powerpc/64: Fix __check_irq_replay missing decrementer interrupt 2017-08-04 12:55:49 +10:00
isa-bridge.c powerpc: Add support for non-PCI ISA bridges 2017-01-31 13:54:17 +11:00
jump_label.c jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP} 2015-08-03 11:34:12 +02:00
kexec_elf_64.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
kgdb.c powerpc: Fix kgdb on little endian ppc64le 2016-02-18 00:03:26 +11:00
kprobes-ftrace.c
kprobes.c Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-09 10:49:47 -07:00
kvm.c powerpc/64s: implement arch-specific hardlockup watchdog 2017-07-12 16:26:02 -07:00
kvm_emul.S KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt. 2012-05-30 11:43:11 +02:00
l2cr_6xx.S
legacy_serial.c
machine_kexec.c
machine_kexec_32.c
machine_kexec_64.c powerpc: Add purgatory for kexec_file_load() implementation. 2016-11-30 23:15:26 +11:00
machine_kexec_file_64.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
Makefile powerpc/64s: implement arch-specific hardlockup watchdog 2017-07-12 16:26:02 -07:00
mce.c powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
mce_power.c powerpc/powernv: Fix local TLB flush for boot and MCE on POWER9 2017-07-11 12:53:53 +10:00
misc.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
misc_32.S powerpc/40x: Clear MSR_DR in one insn instead of two 2017-06-02 19:20:43 +10:00
misc_64.S powerpc/kexec: Fix radix to hash kexec due to IAMR/AMOR 2017-07-10 21:07:38 +10:00
module.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
module_32.c powerpc/module: Only try to generate the ftrace_caller() stub once 2016-03-07 14:53:53 +11:00
module_64.c modversions: treat symbol CRCs as 32 bit quantities 2017-02-03 08:28:25 -08:00
msi.c
nvram_64.c
of_platform.c powerpc/of_platform: Use builtin_platform_driver 2016-11-25 14:07:51 +11:00
optprobes.c powerpc/kprobes/optprobes: Use patch_instruction() 2017-07-03 23:12:19 +10:00
optprobes_head.S powerpc/optprobes: Fix TOC handling in optprobes trampoline 2017-02-23 08:23:30 +11:00
paca.c powerpc/mm/hash: Store addr_limit in PACA 2017-04-01 21:12:27 +11:00
pci-common.c Merge branch 'pci/resource-mmap' into next 2017-04-28 10:34:34 -05:00
pci-hotplug.c powerpc/pci: Don't scan empty slot 2016-05-11 21:54:26 +10:00
pci_32.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pci_64.c powerpc fixes for 4.7 #5 2016-07-15 14:57:47 +10:00
pci_dn.c
pci_of_scan.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
process.c
prom.c powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N 2017-05-25 23:07:44 +10:00
prom_init.c powerpc: don't fortify prom_init 2017-07-12 16:26:03 -07:00
prom_init_check.sh
prom_parse.c
ptrace.c powerpc/tm: Fix saving of TM SPRs in core dump 2017-07-28 15:56:06 +10:00
ptrace32.c
reloc_32.S
reloc_64.S
rtas-proc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rtas-rtc.c
rtas.c
rtas_flash.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rtas_pci.c powerpc: move find_and_init_phbs() to pSeries specific code 2015-04-11 20:49:09 +10:00
rtasd.c
setup-common.c
setup.h powerpc: Merge 32-bit and 64-bit setup_arch() 2016-07-21 19:17:46 +10:00
setup_32.c powerpc: Move {d,i,u}cache_bsize definitions to a common place 2017-02-06 19:46:04 +11:00
setup_64.c powerpc/64s: implement arch-specific hardlockup watchdog 2017-07-12 16:26:02 -07:00
signal.c
signal.h
signal_32.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
signal_64.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
smp-tbsync.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
smp.c Linux v4.13-rc1 2017-07-31 20:20:29 +10:00
stacktrace.c powerpc: Make /proc/self/stack always print the current stack 2017-03-28 14:43:59 +11:00
suspend.c nosave: consolidate __nosave_{begin,end} in <asm/sections.h> 2014-10-09 22:26:04 -04:00
swsusp.c powerpc/swsusp: Include suspend.h to silence sparse warnings 2017-03-20 19:02:49 +11:00
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
sys_ppc32.c
syscalls.c powerpc/tracing: Allow tracing of mmap syscalls 2017-04-12 22:32:43 +10:00
sysfs.c powerpc/sysfs: Move #ifdef CONFIG_HOTPLUG_CPU out of the function body 2017-05-03 14:45:38 +10:00
systbl.S powerpc: Add a proper syscall for switching endianness 2015-03-28 22:03:40 +11:00
systbl_chk.c
systbl_chk.sh powerpc: Standardise on NR_syscalls rather than __NR_syscalls. 2015-11-26 22:11:17 +11:00
tau_6xx.c
time.c
tm.S powerpc/tm: Fix comment 2017-06-27 12:09:09 +10:00
traps.c
udbg.c powerpc: Remove the celleb support 2015-04-07 17:15:13 +10:00
udbg_16550.c
uprobes.c uprobes/powerpc: Kill arch_uprobe->ainsn 2013-11-20 16:31:01 +01:00
vdso.c
vecemu.c
vector.S Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
vmlinux.lds.S
watchdog.c powerpc/64s: implement arch-specific hardlockup watchdog 2017-07-12 16:26:02 -07:00