Michael Ellerman bfb9956ab4 powerpc/mm: Fix crash in page table dump with huge pages ...

The page table dump code doesn't know about huge pages, so currently
it crashes (or walks random memory, usually leading to a crash), if it
finds a huge page. On Book3S we only see huge pages in the Linux page
tables when we're using the P9 Radix MMU.

Teaching the code to properly handle huge pages is a bit more involved,
so for now just prevent the crash.

Cc: stable@vger.kernel.org # v4.10+
Fixes: 8eb07b1870 ("powerpc/mm: Dump linux pagetables")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2017-05-17 11:56:33 +10:00

..

8xx_mmu.c

powerpc/8xx: add CONFIG_PIN_TLB_IMMR

2016-07-09 02:02:48 -05:00

40x_mmu.c

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

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

44x_mmu.c

powerpc: Delete __cpuinit usage from all users

2013-07-01 11:10:36 +10:00

copro_fault.c

powerpc/mm: Update PROTFAULT handling in the page fault path

2017-02-15 20:02:39 +11:00

dma-noncoherent.c

powerpc: Simplify test in __dma_sync()

2016-03-11 17:20:12 -06:00

dump_hashpagetable.c

powerpc/mm: Fix hash table dump when memory is not contiguous

2017-04-12 23:03:32 +10:00

dump_linuxpagetables.c

powerpc/mm: Fix crash in page table dump with huge pages

2017-05-17 11:56:33 +10:00

fault.c

powerpc: Avoid taking a data miss on every userspace instruction miss

2017-04-03 23:33:05 +10:00

fsl_booke_mmu.c

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

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

hash64_4k.c

powerpc/mm: Fix lazy icache flush on pre-POWER5

2016-11-29 23:59:40 +11:00

hash64_64k.c

powerpc/mm: Fix lazy icache flush on pre-POWER5

2016-11-29 23:59:40 +11:00

hash_low_32.S

powerpc/32: Remove Mac-on-Linux/rtlinux hooks

2017-03-21 22:09:26 +11:00

hash_native_64.c

powerpc/mm: Add missing global TLB invalidate if cxl is active

2017-04-05 22:13:37 +10:00

hash_utils_64.c

powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there

2017-04-11 07:46:03 +10:00

highmem.c

sched/preempt, mm/kmap: Explicitly disable/enable preemption in kmap_atomic_*

2015-05-19 08:39:14 +02:00

hugepage-hash64.c

powerpc/mm: Move hash table ops to a separate structure

2016-07-21 18:59:09 +10:00

hugetlbpage-book3e.c

powerpc/mm/nohash: MM_SLICE is only used by book3s 64

2017-03-31 23:09:47 +11:00

hugetlbpage-hash64.c

powerpc/mm: Remove the debug hugepd_ok check

2017-01-23 19:19:28 +11:00

hugetlbpage-radix.c

powerpc/mm/radix: Use mm->task_size for boundary checking instead of addr_limit

2017-04-19 20:00:18 +10:00

hugetlbpage.c

powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout

2017-03-31 23:09:50 +11:00

icswx_pid.c

powerpc: Split ICSWX ACOP and PID processing

2011-11-25 14:11:27 +11:00

icswx.c

scripts/spelling.txt: add regsiter -> register spelling mistake

2017-05-08 17:15:13 -07:00

icswx.h

powerpc/icswx: Fix race condition with IPI setting ACOP

2012-03-07 17:06:09 +11:00

init_32.c

powerpc/32: Add missing \n and switch to pr_warn()

2016-09-13 17:37:11 +10:00

init_64.c

Merge tag 'powerpc-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-05-05 11:36:44 -07:00

init-common.c

Merge branch 'topic/ppc-kvm' into next

2017-02-14 17:18:29 +11:00

Makefile

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

2016-12-16 15:05:38 +11:00

mem.c

powerpc/pseries: Automatically resize HPT for memory hot add/remove

2017-02-10 13:28:02 +11:00

mmap.c

powerpc/mm: Fix possible out-of-bounds shift in arch_mmap_rnd()

2017-04-26 15:35:01 +10:00

mmu_context_book3s64.c

powerpc/powernv: Introduce address translation services for Nvlink2

2017-04-04 13:27:26 +10:00

mmu_context_hash32.c

powerpc: Remove power3 from comments

2014-07-28 14:10:26 +10:00

mmu_context_iommu.c

Merge branch 'topic/ppc-kvm' into next

2017-04-28 20:19:37 +10:00

mmu_context_nohash.c

powerpc/mm/nohash: MM_SLICE is only used by book3s 64

2017-03-31 23:09:47 +11:00

mmu_decl.h

powerpc/8xx: Map IMMR area with 512k page at a fixed address

2016-07-09 02:02:48 -05:00

numa.c

powerpc/mm: Remove reduntant initmem information from log

2017-04-11 07:46:05 +10:00

pgtable_32.c

powerpc: port 64 bits pgtable_cache to 32 bits

2016-12-09 22:48:01 -06:00

pgtable_64.c

Merge branch 'topic/ppc-kvm' into next

2017-02-14 17:18:29 +11:00

pgtable-book3e.c

powerpc/mm: Make page table size a variable

2016-05-01 18:32:48 +10:00

pgtable-book3s64.c

sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>

2017-03-02 08:42:37 +01:00

pgtable-hash64.c

sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>

2017-03-02 08:42:37 +01:00

pgtable-radix.c

Merge tag 'powerpc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-03-07 10:46:10 -08:00

pgtable.c

powerpc/mm: Fix typo in set_pte_at()

2017-02-17 22:16:25 +11:00

ppc_mmu_32.c

powerpc32: refactor x_mapped_by_bats() and x_mapped_by_tlbcam() together

2016-03-11 17:18:02 -06:00

slb_low.S

powerpc/mm/hash: Store addr_limit in PACA

2017-04-01 21:12:27 +11:00

slb.c

powerpc/mm/hash: Don't open code VMALLOC_INDEX

2017-04-13 23:34:31 +10:00

slice.c

powerpc/mmap: Any hint > 128TB searches the full VA space

2017-04-19 20:00:19 +10:00

subpage-prot.c

powerpc/mm/radix: Use mm->task_size for boundary checking instead of addr_limit

2017-04-19 20:00:18 +10:00

tlb_hash32.c

powerpc/mm: remove flush_tlb_page_nohash

2016-08-01 11:15:13 +10:00

tlb_hash64.c

powerpc/mm: Hash abstraction for tlbflush routines

2016-05-01 18:33:08 +10:00

tlb_low_64e.S

powerpc: Fix misspellings in comments.

2016-03-01 19:27:20 +11:00

tlb_nohash_low.S

powerpc: Fix misspellings in comments.

2016-03-01 19:27:20 +11:00

tlb_nohash.c

powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit()

2017-04-11 07:46:04 +10:00

tlb-radix.c

powerpc/mm/radix: Drop support for CPUs without lockless tlbie

2017-05-03 20:45:45 +10:00

vphn.c

powerpc/vphn: parsing code rewrite

2015-03-18 10:48:59 +11:00

vphn.h

powerpc/vphn: parsing code rewrite

2015-03-18 10:48:59 +11:00