Naveen N. Rao 8afafa6fba powerpc/kprobes: Update optprobes to use emulate_update_regs() ...

Optprobes depended on an updated regs->nip from analyse_instr() to
identify the location to branch back from the optprobes trampoline.
However, since commit 3cdfcbfd32 ("powerpc: Change analyse_instr so
it doesn't modify *regs"), analyse_instr() doesn't update the registers
anymore.  Due to this, we end up branching back from the optprobes
trampoline to the same branch into the trampoline resulting in a loop.

Fix this by calling out to emulate_update_regs() before using the nip.
Additionally, explicitly compare the return value from analyse_instr()
to 1, rather than just checking for !0 so as to guard against any
future changes to analyse_instr() that may result in -1 being returned
in more scenarios.

Fixes: 3cdfcbfd32 ("powerpc: Change analyse_instr so it doesn't modify *regs")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2017-09-20 20:21:24 +10:00

..

trace

powerpc/kprobes: Skip livepatch_handler() for jprobes

2017-06-16 19:49:43 +10:00

vdso32

powerpc/time: refactor MFTB() to limit number of ifdefs

2017-08-10 23:32:09 +10:00

vdso64

powerpc/vdso64: Use double word compare on pointers

2016-09-29 15:17:57 +10:00

.gitignore

…

align.c

powerpc: Fix handling of alignment interrupt on dcbz instruction

2017-09-15 08:41:18 +10:00

asm-offsets.c

powerpc/powernv: Save/Restore additional SPRs for stop4 cpuidle

2017-08-01 21:01:20 +10:00

audit.c

…

btext.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

cacheinfo.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

cacheinfo.h

…

compat_audit.c

…

cpu_setup_6xx.S

powerpc: Various typo fixes

2016-06-14 13:58:26 +10:00

cpu_setup_44x.S

…

cpu_setup_fsl_booke.S

powerpc/cache: add cache flush operation for various e500

2016-03-04 23:44:51 -06:00

cpu_setup_pa6t.S

…

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/8xx: Use symbolic PVR value

2017-08-10 23:32:18 +10:00

crash_dump.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

crash.c

powerpc/fadump: remove dependency with CONFIG_KEXEC

2017-05-08 17:15:11 -07:00

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

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

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_cache.c

powerpc/eeh: Fix pr_debug()s in eeh_cache.c

2016-07-08 22:09:50 +10:00

eeh_dev.c

powerpc/eeh: Delete an error out of memory message at init time

2017-09-01 16:42:53 +10:00

eeh_driver.c

powerpc/eeh: Remove unnecessary pointer to phb from eeh_dev

2017-08-31 14:26:09 +10:00

eeh_event.c

powerpc/pci: Always print PHB and PE numbers as hexadecimal

2016-11-22 11:57:07 +11:00

eeh_pe.c

powerpc/eeh: Remove unnecessary config_addr from eeh_dev

2017-08-31 14:26:09 +10:00

eeh_sysfs.c

powerpc/eeh: Remove unnecessary config_addr from eeh_dev

2017-08-31 14:26:09 +10:00

eeh.c

powerpc/eeh: Reduce use of pci_dn::node

2017-08-31 14:26:10 +10:00

entry_32.S

powerpc/32: Avoid risk of unrecoverable TLBmiss inside entry_32.S

2017-08-15 22:55:53 +10:00

entry_64.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

epapr_hcalls.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

epapr_paravirt.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2014-06-10 18:54:22 -07:00

exceptions-64e.S

powerpc/64e: Fix hang when debugging programs with relocated kernel

2017-04-30 01:05:18 -05:00

exceptions-64s.S

powerpc/64s: Remove spurious IRQ reason in IRQ replay

2017-08-23 23:17:29 +10:00

fadump.c

powerpc/powernv: Use kernel crash path for machine checks

2017-08-31 14:26:04 +10:00

firmware.c

…

fpu.S

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-10-14 14:26:58 -07:00

fsl_booke_entry_mapping.S

powerpc/fsl: Force coherent memory on e500mc derivatives

2015-08-07 23:00:01 -05:00

head_8xx.S

powerpc/8xx: Reduce DTLB miss handler by one insn

2017-08-15 22:55:55 +10:00

head_32.S

powerpc/mm: Use symbolic constants for filtering SRR1 bits on ISIs

2017-08-03 16:06:44 +10:00

head_40x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_44x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_64.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

head_booke.h

…

head_fsl_booke.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

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_6xx.S

…

idle_book3e.S

…

idle_book3s.S

powerpc/64s: idle POWER9 can execute stop in virtual mode

2017-08-29 21:42:14 +10:00

idle_e500.S

powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S

2015-06-02 21:37:19 -05:00

idle_power4.S

…

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: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

io.c

…

iomap.c

powerpc: Move isa bridge definitions to separate include

2017-01-31 13:54:17 +11:00

iommu.c

powerpc/iommu: Use permission-specific DEVICE_ATTR variants

2017-09-01 16:42:54 +10:00

irq.c

powerpc/64s: Merge HV and non-HV paths for doorbell IRQ replay

2017-08-23 23:13:27 +10:00

isa-bridge.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

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/8xx: Getting rid of remaining use of CONFIG_8xx

2017-08-10 23:32:12 +10:00

kprobes-ftrace.c

powerpc/kprobes: Add support for KPROBES_ON_FTRACE

2017-04-24 19:07:58 +10:00

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_emul.S

…

kvm.c

powerpc/64: Fix watchdog configuration regressions

2017-08-31 14:26:00 +10:00

l2cr_6xx.S

powerpc/l2cr_6xx: Fix invalid use of register expressions

2017-08-15 21:04:32 +10:00

legacy_serial.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

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

machine_kexec.c

powerpc: Update of_remove_property() call sites to remove null checking

2016-05-11 21:54:04 +10:00

Makefile

powerpc/8xx: Getting rid of remaining use of CONFIG_8xx

2017-08-10 23:32:12 +10:00

mce_power.c

powerpc/powernv: Fix local TLB flush for boot and MCE on POWER9

2017-07-11 12:53:53 +10:00

mce.c

powerpc/mce: Move 64-bit machine check code into mce.c

2017-08-10 23:31:31 +10:00

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

misc.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

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

module.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

msi.c

powerpc: Remove MSI-related PCI controller ops from ppc_md

2015-06-02 11:47:45 +10:00

nvram_64.c

powerpc/nvram: use memdup_user

2017-06-27 17:02:50 -07:00

of_platform.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

optprobes_head.S

powerpc/kprobes: Don't save/restore DAR/DSISR to/from pt_regs for optprobes

2017-08-24 16:19:01 +10:00

optprobes.c

powerpc/kprobes: Update optprobes to use emulate_update_regs()

2017-09-20 20:21:24 +10:00

paca.c

treewide: make "nr_cpu_ids" unsigned

2017-09-08 18:26:48 -07:00

pci_32.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

pci_64.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

pci_dn.c

powerpc/pci: Remove OF node back pointer from pci_dn

2017-08-31 14:26:12 +10:00

pci_of_scan.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

pci-common.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

pci-hotplug.c

powerpc/pci: Don't scan empty slot

2016-05-11 21:54:26 +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

powerpc/oops: Line up NIP & MSR with other rows

2017-08-28 22:10:00 +10:00

prom_init_check.sh

powerpc: Simplify symbol check in prom_init_check.sh

2014-09-25 23:14:46 +10:00

prom_init.c

powerpc/xive: add XIVE Exploitation Mode to CAS

2017-09-02 21:02:38 +10:00

prom_parse.c

…

prom.c

powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N

2017-05-25 23:07:44 +10:00

ptrace32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ptrace.c

powerpc/tm: Flush TM only if CPU has TM feature

2017-09-20 13:30:09 +10:00

reloc_32.S

…

reloc_64.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

rtas_flash.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

rtas_pci.c

powerpc/kernel: Change retrieval of pci_dn

2017-08-31 14:26:40 +10:00

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

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

rtasd.c

powerpc: Only obtain cpu_hotplug_lock if called by rtasd

2017-06-23 09:32:11 +02:00

setup_32.c

powerpc/32: remove a NOP from memset()

2017-09-01 16:42:46 +10:00

setup_64.c

powerpc/64: Fix watchdog configuration regressions

2017-08-31 14:26:00 +10:00

setup-common.c

treewide: make "nr_cpu_ids" unsigned

2017-09-08 18:26:48 -07:00

setup.h

powerpc: Merge 32-bit and 64-bit setup_arch()

2016-07-21 19:17:46 +10:00

signal_32.c

signal: Remove kernel interal si_code magic

2017-07-24 14:30:28 -05:00

signal_64.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal.c

livepatch/powerpc: add TIF_PATCH_PENDING thread flag

2017-03-08 09:20:19 +01:00

signal.h

powerpc: tm: Rename transct_(*) to ck(\1)_state

2016-10-04 20:33:16 +11:00

smp-tbsync.c

…

smp.c

powerpc/smp: Add Power9 scheduler topology

2017-08-31 18:16:08 +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_32.S

…

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: Fix invalid use of register expressions

2017-08-10 22:29:41 +10:00

swsusp_booke.S

…

swsusp.c

powerpc/swsusp: Include suspend.h to silence sparse warnings

2017-03-20 19:02:49 +11:00

sys_ppc32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

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_chk.c

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl_chk.sh

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

tau_6xx.c

…

time.c

powerpc: use spin loop primitives in some functions

2017-07-02 20:40:24 +10:00

tm.S

powerpc/tm: Fix comment

2017-06-27 12:09:09 +10:00

traps.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into fixes

2017-09-20 20:05:24 +10:00

udbg_16550.c

powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()

2014-11-12 13:47:20 +11:00

udbg.c

powerpc: Remove the celleb support

2015-04-07 17:15:13 +10:00

uprobes.c

powerpc/uprobes: Implement arch_uretprobe_is_alive()

2017-08-24 16:19:21 +10:00

vdso.c

powerpc/64: Clean up ppc64_caches using a struct per cache

2017-02-06 19:46:04 +11:00

vecemu.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

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

powerpc/mm: Implement STRICT_KERNEL_RWX on PPC32

2017-08-15 22:55:57 +10:00

watchdog.c

Merge branch 'fixes' into next

2017-08-23 22:20:10 +10:00