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Mahesh Salgaonkar b63a0ffe35 powerpc/powernv: Machine check exception handling. 
Add basic error handling in machine check exception handler.

- If MSR_RI isn't set, we can not recover.
- Check if disposition set to OpalMCE_DISPOSITION_RECOVERED.
- Check if address at fault is inside kernel address space, if not then send
  SIGBUS to process if we hit exception when in userspace.
- If address at fault is not provided then and if we get a synchronous machine
  check while in userspace then kill the task.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-05 16:06:06 +11:00
..
vdso32
powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported
2013-11-22 16:56:48 -06:00
vdso64
powerpc: Wrong DWARF CFI in the kernel vdso for little-endian / ELFv2
2013-11-21 09:19:23 +11:00
.gitignore
…
align.c
powerpc: Enable Little Endian Alignment Handler for Float Pair Instructions
2013-10-30 16:01:23 +11:00
asm-offsets.c
powerpc/book3s: handle machine check in Linux host.
2013-12-05 16:02:06 +11:00
audit.c
…
btext.c
powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
2013-08-27 16:01:23 +10:00
cacheinfo.c
powerpc: Make device tree accesses in cache info code endian safe
2013-08-14 15:33:27 +10:00
cacheinfo.h
…
clock.c
powerpc: various straight conversions from module.h --> export.h
2011-10-31 19:30:44 -04:00
compat_audit.c
…
cpu_setup_6xx.S
powerpc: Fix some 6xx/7xxx CPU setup functions
2011-02-07 12:57:11 +11:00
cpu_setup_44x.S
powerpc/44x: Add support for the AMCC APM821xx SoC
2010-10-13 08:47:09 -04:00
cpu_setup_a2.S
powerpc: Enforce usage of RA 0-R31 where possible
2012-07-10 19:18:35 +10:00
cpu_setup_fsl_booke.S
powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx
2013-07-30 15:50:07 -05:00
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc/book3s: Add flush_tlb operation in cpu_spec.
2013-12-05 16:04:38 +11:00
cpu_setup_ppc970.S
powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits
2011-07-12 13:16:58 +03:00
cputable.c
powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power8.
2013-12-05 16:04:40 +11:00
crash_dump.c
powerpc: Remove savemaxmem parameter setup
2013-07-03 16:08:03 -07:00
crash.c
Disintegrate asm/system.h for PowerPC
2012-03-28 18:30:02 +01:00
dbell.c
powerpc: Add accounting for Doorbell interrupts
2013-04-18 15:59:55 +10:00
dma-iommu.c
powerpc/dma-iommu: Fix IOMMU window check
2012-08-24 20:26:07 +10:00
dma-swiotlb.c
powerpc/swiotlb: Enable at early stage and disable if not necessary
2012-09-12 14:57:09 -05:00
dma.c
powerpc/kernel: Remove uses of abs_to_virt() and virt_to_abs()
2012-09-05 15:19:30 +10:00
eeh_cache.c
powerpc/eeh: Remove reference to PCI device
2013-07-24 14:18:46 +10:00
eeh_dev.c
powerpc/eeh: Move common part to kernel directory
2013-06-20 17:05:35 +10:00
eeh_driver.c
powerpc/eeh: Fix unbalanced enable for IRQ
2013-07-24 14:18:49 +10:00
eeh_event.c
powerpc/eeh: More accurate log
2013-11-21 10:33:36 +11:00
eeh_pe.c
powerpc/eeh: Don't use pci_dev during BAR restore
2013-07-24 14:18:49 +10:00
eeh_sysfs.c
powerpc/eeh: Introdce flag to protect sysfs
2013-07-24 14:18:49 +10:00
eeh.c
powerpc/eeh: Enable PCI_COMMAND_MASTER for PCI bridges
2013-11-21 10:33:35 +11:00
entry_32.S
powerpc/32bit:Store temporary result in r0 instead of r8
2013-06-01 08:29:27 +10:00
entry_64.S
powerpc/book3s: Queue up and process delayed MCE events.
2013-12-05 16:05:21 +11:00
epapr_hcalls.S
powerpc: Add paravirt idle loop for 64-bit Book-E
2013-03-13 14:19:36 -05:00
epapr_paravirt.c
powerpc: add explicit OF includes
2013-10-09 20:04:11 -05:00
exceptions-64e.S
powerpc/booke64: Use common defines for AltiVec interrupts numbers
2013-10-16 18:46:40 -05:00
exceptions-64s.S
powerpc/book3s: Queue up and process delayed MCE events.
2013-12-05 16:05:21 +11:00
fadump.c
mm/ppc: use common help functions to free reserved pages
2013-04-29 15:54:30 -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
powerpc: Don't corrupt user registers on 32-bit
2013-10-23 22:34:19 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl-booke: Fix address issue when using relocatable kernels
2010-07-11 11:04:08 -05:00
ftrace.c
powerpc: Make ftrace endian-safe.
2013-10-11 16:53:26 +11:00
head_8xx.S
powerpc/8xx: Fixing issue with CONFIG_PIN_TLB
2013-10-28 21:11:21 -05:00
head_32.S
powerpc: Call do_page_fault() with interrupts off
2012-03-09 10:55:08 +11:00
head_40x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_44x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_64.S
powerpc: Endian safe trampoline
2013-10-11 16:48:34 +11:00
head_booke.h
powerpc: Fix interrupt range check on debug exception
2013-05-02 10:31:01 +10:00
head_fsl_booke.S
powerpc/fsl-booke: Use common defines for SPE/FP interrupts numbers
2013-10-16 18:49:44 -05:00
hw_breakpoint.c
powerpc/hw_brk: Fix off by one error when validating DAWR region end
2013-07-02 08:20:49 +10:00
ibmebus.c
PPC: ibmebus: convert bus code to use bus_groups
2013-09-26 15:49:42 -07:00
idle_6xx.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_book3e.S
powerpc: Add paravirt idle loop for 64-bit Book-E
2013-03-13 14:19:36 -05:00
idle_e500.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_power4.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_power7.S
powerpc/book3s: Return from interrupt if coming from evil context.
2013-12-05 16:04:36 +11:00
idle.c
powerpc/idle: Convert use of typedef ctl_table to struct ctl_table
2013-07-01 11:10:35 +10:00
io-workarounds.c
powerpc: Better split CONFIG_PPC_INDIRECT_PIO and CONFIG_PPC_INDIRECT_MMIO
2013-08-14 14:57:50 +10:00
io.c
powerpc/powernv: Add PIO accessors for Power8 LPC bus
2013-08-14 14:58:08 +10:00
iomap.c
powerpc: switch to GENERIC_PCI_IOMAP
2011-11-28 21:13:18 +02:00
iommu.c
powerpc/iommu: Use GFP_KERNEL instead of GFP_ATOMIC in iommu_init_table()
2013-10-03 17:24:44 +10:00
irq.c
powerpc: Make irq_stat.timers_irqs counting more specific
2013-12-02 14:14:50 +11:00
isa-bridge.c
POWERPC: drivers: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
jump_label.c
powerpc: Fix build breakage in jump_label.c
2011-11-16 14:25:19 +11:00
kgdb.c
powerpc/kgdb: use DEFINE_PER_CPU to allocate kgdb's thread_info
2013-10-18 18:38:10 -05:00
kprobes.c
doc: typo on word accounting in kprobes.c in mutliple architectures
2013-10-14 15:46:39 +02:00
kvm_emul.S
KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt.
2012-05-30 11:43:11 +02:00
kvm.c
mm: enhance free_reserved_area() to support poisoning memory with zero
2013-07-03 16:07:32 -07:00
l2cr_6xx.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
legacy_serial.c
powerpc/legacy_serial: Fix incorrect placement of __initdata tag
2013-10-11 16:48:59 +11:00
machine_kexec_32.c
treewide: convert uses of ATTRIB_NORETURN to __noreturn
2012-01-12 20:13:03 -08:00
machine_kexec_64.c
powerpc/kexec: kexec_sequence() is in misc_64.S
2013-10-30 16:02:18 +11:00
machine_kexec.c
powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump filtering
2013-11-25 11:50:12 +11:00
Makefile
powerpc/book3s: Decode and save machine check event.
2013-12-05 16:05:20 +11:00
mce_power.c
powerpc/book3s: Decode and save machine check event.
2013-12-05 16:05:20 +11:00
mce.c
powerpc/powernv: Machine check exception handling.
2013-12-05 16:06:06 +11:00
misc_32.S
powerpc: purge all the prefetched instructions for the coherent icache flush
2013-12-02 14:13:47 +11:00
misc_64.S
powerpc: purge all the prefetched instructions for the coherent icache flush
2013-12-02 14:13:47 +11:00
misc.S
powerpc: switch to generic sys_execve()/kernel_execve()
2012-09-30 23:35:51 -04:00
module_32.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
module_64.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
module.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
msi.c
…
nvram_64.c
arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
2013-11-25 11:50:57 +11:00
of_platform.c
powerpc/eeh: Fix crash when adding a device in a slot with DDW
2013-01-10 17:01:58 +11:00
paca.c
powerpc: Fix section mismatch warning in free_lppacas
2013-10-11 16:49:26 +11:00
pci_32.c
powerpc/pci: Support per-aperture memory offset
2013-05-06 13:40:40 +10:00
pci_64.c
powerpc/pci: Don't use bitfield for force_32bit_msi
2013-08-14 11:50:25 +10:00
pci_dn.c
powerpc: Make PCI device node device tree accesses endian safe
2013-08-14 15:33:31 +10:00
pci_of_scan.c
powerpc: Fix little endian issue in OF PCI scan
2013-10-30 16:01:04 +11:00
pci-common.c
of/irq: simplify args to irq_create_of_mapping
2013-10-24 11:42:57 +01:00
pci-hotplug.c
powerpc/pci: Partial tree hotplug support
2013-07-24 14:18:48 +10:00
pmc.c
bug.h: add include of it to various implicit C users
2012-02-29 17:15:08 -05:00
ppc32.h
powerpc: switch to generic old sigaction()
2013-02-03 18:16:10 -05:00
ppc_ksyms.c
Merge branch 'for-kvm' into next
2013-10-11 18:23:53 +11:00
ppc_save_regs.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
proc_powerpc.c
proc_powerpc: switch to fixed_size_llseek()
2013-06-29 12:57:50 +04:00
process.c
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-11-22 08:07:11 -08:00
prom_init_check.sh
powerpc/pmac: Early debug output on screen on 64-bit macs
2013-08-14 14:57:40 +10:00
prom_init.c
powerpc: prom_init exception when updating core value
2013-10-11 16:53:16 +11:00
prom_parse.c
powerpc: of_parse_dma_window should take a __be32 *dma_window
2013-08-14 15:33:26 +10:00
prom.c
powerpc: Make cpu_to_chip_id() available when SMP=n
2013-11-21 10:33:44 +11:00
ptrace32.c
powerpc: move debug registers in a structure
2013-10-18 18:44:49 -05:00
ptrace.c
powerpc: Set the NOTE type for SPE regset
2013-10-28 21:11:16 -05:00
reloc_32.S
powerpc: Don't flush/invalidate the d/icache for an unknown relocation type
2013-07-01 11:10:34 +10:00
reloc_64.S
…
rtas_flash.c
powerpc/rtas_flash: Fix validate_flash buffer overflow issue
2013-05-14 14:36:26 +10:00
rtas_pci.c
powerpc/kernel: Fix endian issue in rtas_pci
2013-10-11 16:50:22 +11:00
rtas-proc.c
…
rtas-rtc.c
powerpc/rtas-rtc: remove sideeffects of printk_ratelimit
2011-06-29 15:30:43 +10:00
rtas.c
powerpc: Make RTAS calls endian safe
2013-08-14 15:33:22 +10:00
rtasd.c
powerpc/pseries: Add /proc interface to control topology updates
2013-04-26 16:08:26 +10:00
setup_32.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
setup_64.c
powerpc/book3s: Introduce exclusive emergency stack for machine check exception.
2013-12-05 16:02:05 +11:00
setup-common.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
signal_32.c
powerpc/signals: Improved mark VSX not saved with small contexts fix
2013-11-25 11:50:51 +11:00
signal_64.c
powerpc/signals: Improved mark VSX not saved with small contexts fix
2013-11-25 11:50:51 +11:00
signal.c
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
signal.h
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
smp-tbsync.c
POWERPC: drivers: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
smp.c
powerpc: kernel: remove useless code which related with 'max_cpus'
2013-12-02 14:06:58 +11:00
stacktrace.c
powerpc: various straight conversions from module.h --> export.h
2011-10-31 19:30:44 -04:00
suspend.c
update email address
2010-07-19 10:56:54 +02:00
swsusp_32.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
swsusp_64.c
Disintegrate asm/system.h for PowerPC
2012-03-28 18:30:02 +01:00
swsusp_asm64.S
powerpc: Only save/restore SDR1 if in hypervisor mode
2013-10-31 12:37:29 +11:00
swsusp_booke.S
powerpc/mpc85xx: invalidate TLB after hibernation resume
2013-07-30 15:50:08 -05:00
swsusp.c
Disintegrate asm/system.h for PowerPC
2012-03-28 18:30:02 +01:00
sys_ppc32.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
syscalls.c
powerpc: Fix personality handling in ppc64_personality()
2012-08-24 20:26:07 +10:00
sysfs.c
powerpc/kernel/sysfs: Cleanup set up macros for PMC/non-PMC SPRs
2013-12-02 14:16:04 +11:00
systbl_chk.c
…
systbl_chk.sh
…
systbl.S
…
tau_6xx.c
…
time.c
powerpc: Make irq_stat.timers_irqs counting more specific
2013-12-02 14:14:50 +11:00
tm.S
powerpc: Use 32 bit loads and stores when operating on condition register values
2013-10-30 16:02:14 +11:00
traps.c
powerpc/book3s: Introduce a early machine check hook in cpu_spec.
2013-12-05 16:04:37 +11:00
udbg_16550.c
powerpc/wsp: Fix early debug build
2013-08-16 10:59:27 +10:00
udbg.c
powerpc: Add a configuration option for early BootX/OpenFirmware debug
2013-06-20 16:55:12 +10:00
uprobes.c
uretprobes/powerpc: Hijack return address
2013-04-13 15:31:56 +02:00
vdso.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
vecemu.c
powerpc: Put FP/VSX and VR state into structures
2013-10-11 17:26:49 +11:00
vector.S
powerpc: Don't corrupt user registers on 32-bit
2013-10-23 22:34:19 +11:00
vio.c
powerpc/vio: Fix a dma_mask issue of vio
2013-11-21 10:33:43 +11:00
vmlinux.lds.S
powerpc/modules: Module CRC relocation fix causes perf issues
2013-07-24 14:18:43 +10:00