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linux/arch/powerpc/kernel
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Nicholas Piggin 7100e8704b powerpc/64s/radix: Fix radix segment exception handling 
Commit 48e7b76957 ("powerpc/64s/hash: Convert SLB miss handlers to C")
broke the radix-mode segment exception handler. In radix mode, this is
exception is not an SLB miss, rather it signals that the EA is outside
the range translated by any page table.

The commit lost the radix feature alternate code patch, which can
cause faults to some EAs to kernel BUG at arch/powerpc/mm/slb.c:639!

The original radix code would send faults to slb_miss_large_addr,
which would end up faulting due to slb_addr_limit being 0. This patch
sends radix directly to do_bad_slb_fault, which is a bit clearer.

Fixes: 48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C")
Cc: stable@vger.kernel.org # v4.20+
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-04-08 21:46:11 +10:00
..
syscalls
powerpc updates for 5.1
2019-03-07 12:56:26 -08:00
trace
powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO
2019-02-23 22:31:40 +11:00
vdso32
powerpc/vdso32: fix CLOCK_MONOTONIC on PPC64
2019-04-08 06:57:19 +10:00
vdso64
powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038
2019-03-18 19:26:38 +11:00
.gitignore
…
align.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
asm-offsets.c
powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO
2019-02-23 22:31:40 +11:00
audit.c
…
btext.c
powerpc: Rework btext_find_display to use of_stdout and device_type helpers
2018-11-26 22:33:37 +11:00
cacheinfo.c
powerpc: Use device_type helpers to access the node type
2018-11-26 22:33:37 +11:00
cacheinfo.h
…
compat_audit.c
…
cpu_setup_6xx.S
powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32
2019-03-19 00:30:19 +11:00
cpu_setup_44x.S
…
cpu_setup_fsl_booke.S
powerpc/mm: move platform specific mmu-xxx.h in platform directories
2018-12-04 19:45:01 +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
powerpc/83xx: handle machine check caused by watchdog timer
2018-12-21 20:56:41 -06:00
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
…
dma-iommu.c
powerpc/dma: use the dma_direct mapping routines
2019-02-18 22:41:04 +11:00
dma-mask.c
dma-mapping, powerpc: simplify the arch dma_set_mask override
2019-02-18 22:41:03 +11:00
dma-swiotlb.c
powerpc/dma: use the generic direct mapping bypass
2019-02-18 22:41:04 +11:00
dt_cpu_ftrs.c
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
eeh_cache.c
powerpc/eeh_cache: Bump log level of eeh_addr_cache_print()
2019-02-22 00:10:14 +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: Improve recovery of passed-through devices
2019-02-05 11:55:44 +11:00
eeh_event.c
powerpc/eeh: Add eeh_force_recover to debugfs
2019-02-22 00:10:15 +11:00
eeh_pe.c
powerpc/eeh: Add include_passed to eeh_pe_state_clear()
2019-02-05 11:55:43 +11:00
eeh_sysfs.c
powerpc/eeh: Add include_passed to eeh_pe_state_clear()
2019-02-05 11:55:43 +11:00
eeh.c
powerpc/eeh: Add eeh_force_recover to debugfs
2019-02-22 00:10:15 +11:00
entry_32.S
powerpc/32: Clear on-stack exception marker upon exception return
2019-03-04 00:37:23 +11:00
entry_64.S
powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO
2019-02-23 22:31:40 +11:00
epapr_hcalls.S
powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU
2019-02-23 22:31:40 +11:00
epapr_paravirt.c
…
exceptions-64e.S
powerpc/fsl: Fix the flush of branch predictor.
2019-02-27 22:52:38 +11:00
exceptions-64s.S
powerpc/64s/radix: Fix radix segment exception handling
2019-04-08 21:46:11 +10:00
fadump.c
powerpc/fadump: Do not allow hot-remove memory from fadump reserved area.
2018-12-21 11:32:49 +11:00
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
…
head_8xx.S
powerpc: Rename THREAD_INFO to TASK_STACK
2019-02-23 22:31:40 +11:00
head_32.S
powerpc/32: Fix early boot failure with RTAS built-in
2019-04-01 22:32:52 +11:00
head_40x.S
powerpc: Rename THREAD_INFO to TASK_STACK
2019-02-23 22:31:40 +11:00
head_44x.S
powerpc: 'current_set' is now a table of task_struct pointers
2019-02-23 22:31:40 +11:00
head_64.S
powerpc/64: Simplify __secondary_start paca->kstack handling
2019-02-23 22:31:39 +11:00
head_booke.h
powerpc: Activate CONFIG_THREAD_INFO_IN_TASK
2019-02-23 22:31:40 +11:00
head_fsl_booke.S
powerpc: remove dead code in head_fsl_booke.S
2019-03-05 16:38:45 +11:00
hw_breakpoint.c
perf/arch/powerpc: Implement hw_breakpoint_arch_parse()
2018-06-26 09:07:55 +02:00
idle_6xx.S
powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU
2019-02-23 22:31:40 +11:00
idle_book3e.S
powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO
2019-02-23 22:31:40 +11:00
idle_book3s.S
Merge branch 'fixes' into next
2018-08-13 15:59:06 +10:00
idle_e500.S
powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU
2019-02-23 22:31:40 +11:00
idle_power4.S
powerpc/64: Replace CURRENT_THREAD_INFO with PACA_THREAD_INFO
2019-02-23 22:31:40 +11:00
idle.c
…
ima_kexec.c
…
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
IOMMU Updates for Linux v4.21
2019-01-01 15:55:29 -08:00
irq.c
powerpc: clean stack pointers naming
2019-02-23 22:31:40 +11:00
isa-bridge.c
powerpc: Use device_type helpers to access the node type
2018-11-26 22:33:37 +11:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
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: Activate CONFIG_THREAD_INFO_IN_TASK
2019-02-23 22:31:40 +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
powerpc: Use of_node_name_eq for node name comparisons
2018-12-22 21:29:50 +11:00
machine_kexec_32.c
…
machine_kexec_64.c
powerpc: Activate CONFIG_THREAD_INFO_IN_TASK
2019-02-23 22:31:40 +11:00
machine_kexec_file_64.c
powerpc, kexec_file: factor out memblock-based arch_kexec_walk_mem()
2018-12-06 14:38:50 +00:00
machine_kexec.c
powerpc: remove kdump.h from page.h
2018-07-30 22:47:53 +10:00
Makefile
powerpc: Enable kcov
2019-02-23 21:04:32 +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/64s: Fix HV NMI vs HV interrupt recoverability test
2019-02-26 23:28:24 +11:00
misc_32.S
powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU
2019-02-23 22:31:40 +11:00
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
powerpc/msi: Fix NULL pointer access in teardown code
2018-11-29 23:49:11 +11:00
nvram_64.c
powerpc: Adopt nvram module for PPC64
2019-01-22 10:21:45 +01:00
of_platform.c
…
optprobes_head.S
powerpc/64: Rename soft_enabled to irq_soft_mask
2018-01-19 22:37:01 +11:00
optprobes.c
…
paca.c
powerpc: use memblock functions returning virtual address
2019-03-12 10:04:01 -07:00
pci_32.c
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -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
powerpc: Use device_type helpers to access the node type
2018-11-26 22:33:37 +11:00
pci-common.c
powerpc updates for 5.1
2019-03-07 12:56:26 -08:00
pci-hotplug.c
powerpc/pci: Unroll two pass loop when scanning bridges
2017-12-18 23:05:52 -06:00
pmc.c
powerpc: change CONFIG_6xx to CONFIG_PPC_BOOK3S_32
2018-11-26 22:33:37 +11:00
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: regain entire stack space
2019-02-23 22:31:40 +11:00
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
…
prom.c
powerpc: use memblock functions returning virtual address
2019-03-12 10:04:01 -07:00
ptrace32.c
…
ptrace.c
powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
2019-02-22 00:10:14 +11:00
reloc_32.S
…
reloc_64.S
…
rtas_flash.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
rtas_pci.c
…
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
memblock: drop memblock_alloc_base()
2019-03-12 10:04:01 -07:00
rtasd.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
security.c
powerpc/security: Fix spectre_v2 reporting
2019-03-21 21:09:03 +11:00
setup_32.c
powerpc updates for 5.1
2019-03-07 12:56:26 -08:00
setup_64.c
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
setup-common.c
treewide: add checks for the return value of memblock_alloc*()
2019-03-12 10:04:02 -07:00
setup.h
powerpc/tau: Synchronize function prototypes and body
2018-05-25 12:04:43 +10:00
signal_32.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
signal_64.c
powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
2019-01-11 23:45:00 +11:00
signal.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
signal.h
powerpc/syscalls: signal_{32, 64} - switch to SYSCALL_DEFINE
2018-05-10 23:25:13 +10:00
smp-tbsync.c
…
smp.c
powerpc: 'current_set' is now a table of task_struct pointers
2019-02-23 22:31:40 +11:00
stacktrace.c
powerpc: Remove export of save_stack_trace_tsk_reliable()
2019-03-02 14:43:05 +11:00
suspend.c
…
swsusp_32.S
powerpc: clean inclusions of asm/feature-fixups.h
2018-07-30 22:48:17 +10:00
swsusp_64.c
…
swsusp_asm64.S
powerpc/64s/hash: Simplify slb_flush_and_rebolt()
2018-10-14 18:04:09 +11:00
swsusp_booke.S
…
swsusp.c
…
sys_ppc32.c
powerpc/syscalls: kill ppc32_select()
2018-05-10 23:25:15 +10:00
syscalls.c
powerpc/64: Make sys_switch_endian() traceable
2019-02-22 00:10:15 +11:00
sysfs.c
powerpc: change CONFIG_6xx to CONFIG_PPC_BOOK3S_32
2018-11-26 22:33:37 +11:00
systbl_chk.sh
powerpc: Make it clearer that systbl check errors are errors
2018-05-10 23:25:16 +10:00
systbl.S
powerpc: remove nargs from __SYSCALL
2019-03-02 14:43:05 +11:00
tau_6xx.c
powerpc/tau: Make some function static
2018-05-25 12:04:44 +10:00
time.c
powerpc/kernel/time: Remove duplicate header
2019-01-30 23:42:31 +11:00
tm.S
Merge branch 'fixes' into next
2018-10-09 16:51:05 +11:00
traps.c
powerpc/64s: Include <asm/nmi.h> header file to fix a warning
2019-03-13 15:03:13 +11:00
udbg_16550.c
…
udbg.c
powerpc: use a CONSOLE_LOGLEVEL_DEBUG macro
2019-01-14 20:39:27 +11:00
uprobes.c
…
vdso.c
powerpc/vdso: don't clear PG_reserved
2019-03-05 21:07:18 -08:00
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/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT
2019-02-23 21:04:32 +11:00
watchdog.c
powerpc: NMI IPI make NMI IPIs fully sychronous
2018-07-24 22:03:14 +10:00