Kalesh Singh 37d6ffe5ca ANDROID: 16K: Introduce ELF padding representation for VMAs ...

The dynamic linker may extend ELF LOAD segment mappings to be contiguous
in memory when loading a 16kB compatible ELF on a 4kB page-size system.
This is done to reduce the use of unreclaimable VMA slab memory for the
otherwise necessary "gap" VMAs. The extended portion of the mapping
(VMA) can be viewed as "padding", meaning that the mapping in that range
corresponds to an area of the file that does not contain contents of the
respective segments (maybe zero's depending on how the ELF is built).

For some compatibility mitigations, the region of a VMA corresponding to
these padding sections need to be known.

In order to represent such regions without adding addtional overhead or
breaking ABI, some upper bits of vm_flags are used.

Add the VMA padding pages representation and the necessary APIs to
manipulate it.

Bug: 330117029
Bug: 327600007
Bug: 330767927
Bug: 328266487
Bug: 329803029
Change-Id: Ieb9fa98e30ec9b0bec62256624f14e3ed6062a75
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>

2024-05-02 15:06:13 -07:00

..

damon

UPSTREAM: mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()

2024-03-13 13:35:31 +00:00

kasan

Revert "kasan: print the original fault addr when access invalid shadow"

2023-11-27 15:23:01 +00:00

kfence

UPSTREAM: kfence: avoid passing -g for test

2023-09-08 12:39:57 +01:00

backing-dev.c

writeback, cgroup: remove extra percpu_ref_exit()

2023-05-30 12:57:56 +01:00

balloon_compaction.c

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cleancache.c

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cma_debug.c

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cma_sysfs.c

ANDROID: make cma_sysfs experimental

2021-03-25 19:20:18 +00:00

cma.c

Merge 5.10.202 into android12-5.10-lts

2023-12-08 16:26:36 +00:00

cma.h

ANDROID: GKI: add OEM data in cma struct

2021-06-04 11:15:16 -07:00

compaction.c

ANDROID: vendor_hook: Add hook to abort reclaim and compaction

2023-07-18 17:31:55 +00:00

debug_page_ref.c

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debug_vm_pgtable.c

mm/debug_vm_pgtable: remove pte entry from the page table

2022-02-08 18:30:35 +01:00

debug.c

ANDROID: mm: introduce page_pinner

2021-04-30 09:13:34 -07:00

dmapool.c

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early_ioremap.c

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fadvise.c

…

failslab.c

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filemap.c

Merge 5.10.197 into android12-5.10-lts

2023-10-26 17:52:15 +00:00

frame_vector.c

media: vb2: frame_vector.c: replace WARN_ONCE with a comment

2023-10-10 21:53:33 +02:00

frontswap.c

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gup_benchmark.c

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gup.c

Merge 5.10.168 into android12-5.10-lts

2023-02-17 15:23:41 +00:00

highmem.c

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hmm.c

mm/hmm.c: allow VM_MIXEDMAP to work with hmm_range_fault

2022-01-27 10:54:36 +01:00

huge_memory.c

Merge 5.10.176 into android12-5.10-lts

2023-03-24 16:03:04 +00:00

hugetlb_cgroup.c

hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings

2021-03-30 14:31:54 +02:00

hugetlb.c

BACKPORT: hugetlb: unshare some PMDs when splitting VMAs

2023-04-13 18:04:03 +01:00

hwpoison-inject.c

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init-mm.c

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internal.h

Merge 5.10.47 into android12-5.10-lts

2021-06-30 19:38:46 +02:00

interval_tree.c

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ioremap.c

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Kconfig

ANDROID: mm: disable speculative page faults for CONFIG_NUMA

2022-11-27 09:32:29 -08:00

Kconfig.debug

ANDROID: mm: introduce page_pinner

2021-04-30 09:13:34 -07:00

khugepaged.c

Merge 5.10.179 into android12-5.10-lts

2023-06-16 09:49:29 +00:00

kmemleak.c

Merge 5.10.143 into android12-5.10-lts

2022-09-22 14:38:08 +02:00

ksm.c

BACKPORT: mm: don't be stuck to rmap lock on reclaim path

2022-10-11 16:33:36 +00:00

list_lru.c

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maccess.c

maccess: Fix writing offset in case of fault in strncpy_from_kernel_nofault()

2022-11-25 17:45:53 +01:00

madvise.c

ANDROID: Add Interrupt Hook for madvise Compression

2023-11-01 19:07:41 +00:00

Makefile

ANDROID: 16K: Introduce /sys/kernel/mm/pgsize_miration/enabled

2024-05-02 15:06:11 -07:00

mapping_dirty_helpers.c

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memblock.c

Merge 5.10.169 into android12-5.10-lts

2023-02-25 15:32:12 +00:00

memcontrol.c

Merge 5.10.202 into android12-5.10-lts

2023-12-08 16:26:36 +00:00

memfd.c

memfd: check for non-NULL file_seals in memfd_create() syscall

2023-06-28 10:28:09 +02:00

memory_hotplug.c

Merge 5.10.202 into android12-5.10-lts

2023-12-08 16:26:36 +00:00

memory-failure.c

Merge 5.10.208 into android12-5.10-lts

2024-01-16 13:12:39 +00:00

memory.c

Merge tag 'android12-5.10.209_r00' into android12-5.10

2024-03-28 10:29:56 +00:00

mempolicy.c

Merge 5.10.168 into android12-5.10-lts

2023-02-17 15:23:41 +00:00

mempool.c

FROMGIT: kasan: use separate (un)poison implementation for integrated init

2021-06-17 14:39:37 -07:00

memremap.c

mm/memremap.c: map FS_DAX device memory as decrypted

2022-11-16 09:57:17 +01:00

memtest.c

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migrate.c

Merge 5.10.168 into android12-5.10-lts

2023-02-17 15:23:41 +00:00

mincore.c

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mlock.c

ANDROID: mm: page_pinner: unattribute follow_page in munlock_vma_pages_range

2021-04-30 09:13:35 -07:00

mm_init.c

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mmap.c

Merge tag 'android12-5.10.160_r00' into android12-5.10

2023-01-21 12:06:54 +00:00

mmu_gather.c

mm/khugepaged: fix GUP-fast interaction by sending IPI

2022-12-14 11:31:55 +01:00

mmu_notifier.c

Merge 5.10.113 into android12-5.10-lts

2022-05-12 11:23:35 +02:00

mmzone.c

Merge 5.10.116 into android12-5.10-lts

2022-05-16 08:45:59 +02:00

mprotect.c

Merge 5.10.102 into android12-5.10-lts

2022-02-23 12:56:37 +01:00

mremap.c

ANDROID: mm: Fix VMA ref count after fast-mremap

2024-02-15 19:36:07 +00:00

msync.c

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nommu.c

ANDROID: mm: allow vmas with vm_ops to be speculatively handled

2021-04-23 18:42:39 -07:00

oom_kill.c

BACKPORT: mm: update mark_victim tracepoints fields

2024-04-08 18:40:58 +00:00

page_alloc.c

Merge 5.10.200 into android12-5.10-lts

2023-11-26 14:07:49 +00:00

page_counter.c

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page_ext.c

UPSTREAM: mm/page_exit: fix kernel doc warning in page_ext_put()

2023-04-13 07:58:37 +01:00

page_idle.c

BACKPORT: mm: don't be stuck to rmap lock on reclaim path

2022-10-11 16:33:36 +00:00

page_io.c

ANDROID: vendor_hooks: Add hooks to record the I/O statistics of swap:

2022-06-30 03:00:23 +00:00

page_isolation.c

ANDROID: mm: cma: skip problematic pageblock

2021-07-14 11:54:49 -07:00

page_owner.c

ANDROID: mm: Export page_owner_inited and __set_page_owner

2023-08-29 23:09:59 +00:00

page_pinner.c

ANDROID: page_pinner: prevent pp_buffer access before initialization

2023-03-23 13:28:36 -07:00

page_poison.c

UPSTREAM: kasan: fix conflict with page poisoning

2021-07-19 20:39:17 +00:00

page_reporting.c

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page_reporting.h

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page_vma_mapped.c

mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()

2021-06-30 08:47:29 -04:00

page-writeback.c

ANDROID: vendor_hooks: add hook to balance_dirty_pages()

2021-05-20 19:38:42 +00:00

pagewalk.c

Merge 5.10.142 into android12-5.10-lts

2022-09-22 13:46:39 +02:00

percpu-internal.h

percpu: make pcpu_nr_empty_pop_pages per chunk type

2021-04-14 08:42:03 +02:00

percpu-km.c

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percpu-stats.c

percpu: make pcpu_nr_empty_pop_pages per chunk type

2021-04-14 08:42:03 +02:00

percpu-vm.c

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percpu.c

Merge 5.10.30 into android12-5.10

2021-04-15 14:23:41 +02:00

pgalloc-track.h

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pgsize_migration.c

ANDROID: 16K: Introduce ELF padding representation for VMAs

2024-05-02 15:06:13 -07:00

pgtable-generic.c

mm/thp: fix __split_huge_pmd_locked() on shmem migration entry

2021-06-30 08:47:26 -04:00

process_vm_access.c

…

ptdump.c

Merge 5.10.142 into android12-5.10-lts

2022-09-22 13:46:39 +02:00

readahead.c

Merge 5.10.201 into android12-5.10-lts

2023-11-29 14:46:51 +00:00

rmap.c

ANDROID: Export symbols to do reverse mapping within memcg in kernel modules.

2023-08-23 12:33:26 +00:00

rodata_test.c

…

shmem.c

Merge 5.10.195 into android12-5.10-lts

2023-09-19 11:32:32 +00:00

shuffle.c

…

shuffle.h

…

slab_common.c

BACKPORT: mm: make minimum slab alignment a runtime property

2023-01-20 00:46:19 +00:00

slab.c

BACKPORT: mm: make minimum slab alignment a runtime property

2023-01-20 00:46:19 +00:00

slab.h

Merge 5.10.82 into android12-5.10-lts

2021-11-26 15:37:44 +01:00

slob.c

BACKPORT: mm: make minimum slab alignment a runtime property

2023-01-20 00:46:19 +00:00

slub.c

Merge 5.10.146 into android12-5.10-lts

2022-09-29 17:06:30 +02:00

sparse-vmemmap.c

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sparse.c

mm/sparse: add the missing sparse_buffer_fini() in error branch

2021-05-14 09:50:45 +02:00

swap_cgroup.c

…

swap_slots.c

ANDROID: sched: add restricted hooks to replace the former hooks

2022-10-24 14:26:09 +08:00

swap_state.c

Merge 5.10.108 into android12-5.10-lts

2022-03-23 12:30:33 +01:00

swap.c

ANDROID: vendor_hooks: protect multi-mapcount pages in kernel

2022-08-03 20:10:45 +00:00

swapfile.c

ANDROID: add vendor hook of add/delete/iterate node for swap_avail_heads

2023-09-15 19:58:39 +00:00

truncate.c

mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()

2021-06-30 08:47:27 -04:00

usercopy.c

mm/usercopy: return 1 from hardened_usercopy __setup() handler

2022-04-08 14:40:43 +02:00

userfaultfd.c

ANDROID: userfaultfd: abort uffdio ops if mmap_lock is contended

2024-03-15 19:49:14 +00:00

util.c

ANDROID: vendor_hooks: Add hooks to avoid key threads stalled in

2023-06-30 08:42:41 +00:00

vmacache.c

…

vmalloc.c

Merge 5.10.193 into android12-5.10-lts

2023-08-31 18:29:19 +00:00

vmpressure.c

FROMLIST: mm, memcg: add mem_cgroup_disabled checks in vmpressure and swap-related functions

2021-07-12 18:26:15 -07:00

vmscan.c

ANDROID: mm: Add vendor hooks for recording when kswapd finishing the reclaim job

2024-02-02 17:56:46 +00:00

vmstat.c

Merge 5.10.116 into android12-5.10-lts

2022-05-16 08:45:59 +02:00

workingset.c

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z3fold.c

mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page

2021-07-14 16:56:51 +02:00

zbud.c

…

zpool.c

…

zsmalloc.c

Merge 5.10.120 into android12-5.10-lts

2022-07-23 16:09:48 +02:00

zswap.c

…