Li Wang 983e760bcd selftest/mm: va_high_addr_switch: add ppc64 support check ...

Add PPC64 Radix MMU support to the va_high_addr_switch.sh by introducing
check_supported_ppc64().  The function verifies:

  - 5-level paging (PGTABLE_LEVELS >= 5) enable in kernel config
  - Radix MMU (required for PPC64 5-level translation)
  - HugePages availability (needed for some tests)

If any check fails, the test is skipped (ksft_skip).  This ensures
compatibility with Power9/Power10 systems running in Radix MMU mode.

Avoid failures on 4-level paging system:

  # mmap(NULL, MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(LOW_ADDR, MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(HIGH_ADDR, MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(HIGH_ADDR, MAP_HUGETLB) again: 0xffffffffffffffff - FAILED
  # mmap(HIGH_ADDR, MAP_FIXED | MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(-1, MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(-1, MAP_HUGETLB) again: 0xffffffffffffffff - FAILED
  # mmap(ADDR_SWITCH_HINT - PAGE_SIZE, 2*HUGETLB_SIZE, MAP_HUGETLB): 0xffffffffffffffff - FAILED
  # mmap(ADDR_SWITCH_HINT , 2*HUGETLB_SIZE, MAP_FIXED | MAP_HUGETLB): 0xffffffffffffffff - FAILED

Link: https://lkml.kernel.org/r/20250327114813.25980-1-liwang@redhat.com
Signed-off-by: Li Wang <liwang@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Kirill A. Shuemov <kirill.shutemov@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2025-04-01 15:17:11 -07:00

..

page_frag

mm: page_frag: fix a compile error when kernel is not compiled

2024-11-19 12:20:40 +01:00

.gitignore

selftests/mm: rename guard-pages to guard-regions

2025-03-16 22:06:15 -07:00

charge_reserved_hugetlb.sh

selftests/mm: fix charge_reserved_hugetlb.sh test

2024-09-03 21:15:46 -07:00

check_config.sh

…

compaction_test.c

selftests/mm: compaction_test: fix off by one in check_compaction()

2024-08-15 22:16:15 -07:00

config

selftests/mm: virtual_address_range: unmap chunks after validation

2025-01-25 20:22:44 -08:00

cow.c

selftests/mm/cow: fix the incorrect error handling

2025-03-17 22:07:06 -07:00

droppable.c

mm: add MAP_DROPPABLE for designating always lazily freeable mappings

2024-07-19 20:22:12 +02:00

guard-regions.c

Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-04-01 09:29:18 -07:00

gup_longterm.c

selftests/mm: add commentary about 9pfs bugs

2025-03-21 22:03:14 -07:00

gup_test.c

selftests/mm: fix build warnings on ppc64

2024-05-24 11:55:06 -07:00

hmm-tests.c

selftests/mm: fix incorrect buffer->mirror size in hmm2 double_map test

2024-10-09 12:47:19 -07:00

hugepage-mmap.c

selftests/mm: remove unnecessary ia64 code and comment

2024-09-03 21:15:38 -07:00

hugepage-mremap.c

Revert "selftests/mm: remove local __NR_* definitions"

2025-03-05 21:36:12 -08:00

hugepage-shm.c

selftests/mm: remove unnecessary ia64 code and comment

2024-09-03 21:15:38 -07:00

hugepage-vmemmap.c

selftests/mm: remove unnecessary ia64 code and comment

2024-09-03 21:15:38 -07:00

hugetlb_dio.c

selftest: hugetlb_dio: fix test naming

2024-12-05 19:54:44 -08:00

hugetlb_fault_after_madv.c

selftests/mm: hugetlb_fault_after_madv: improve test output

2024-11-05 16:56:25 -08:00

hugetlb_madv_vs_map.c

selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime

2024-05-11 15:41:37 -07:00

hugetlb_reparenting_test.sh

selftests/mm: save and restore nr_hugepages value

2024-02-22 15:38:55 -08:00

hugetlb-madvise.c

selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements

2024-03-12 13:07:18 -07:00

hugetlb-read-hwpoison.c

…

hugetlb-soft-offline.c

selftest/mm: test enable_soft_offline behaviors

2024-07-04 18:06:00 -07:00

khugepaged.c

selftests: mm: fix the incorrect usage() info of khugepaged

2024-10-17 00:28:11 -07:00

ksm_functional_tests.c

Revert "selftests/mm: remove local __NR_* definitions"

2025-03-05 21:36:12 -08:00

ksm_tests.c

selftests/mm: fix -Wmaybe-uninitialized warnings

2025-01-13 22:40:53 -08:00

madv_populate.c

selftests/mm: ksft_exit functions do not return

2024-05-06 13:57:20 -06:00

Makefile

selftests/mm: rename guard-pages to guard-regions

2025-03-16 22:06:15 -07:00

map_fixed_noreplace.c

selftests: mm: make map_fixed_noreplace test names stable

2024-06-15 10:43:07 -07:00

map_hugetlb.c

selftests/mm: remove unnecessary ia64 code and comment

2024-09-03 21:15:38 -07:00

map_populate.c

selftests/mm: add commentary about 9pfs bugs

2025-03-21 22:03:14 -07:00

mdwe_test.c

Revert "selftests/harness: remove use of LINE_MAX"

2024-05-19 14:36:20 -07:00

memfd_secret.c

Revert "selftests/mm: remove local __NR_* definitions"

2025-03-05 21:36:12 -08:00

migration.c

selftests/mm: add new test cases to the migration test

2025-01-25 20:22:21 -08:00

mkdirty.c

Revert "selftests/mm: remove local __NR_* definitions"

2025-03-05 21:36:12 -08:00

mlock2-tests.c

selftests/mm: parse VMA range in one go

2024-04-25 20:56:07 -07:00

mlock2.h

selftests/mm/mlock: print error on failure

2025-03-16 22:06:40 -07:00

mlock-random-test.c

selftests/mm/mlock: print error on failure

2025-03-16 22:06:40 -07:00

mrelease_test.c

selftests/mm: mrelease_test: conform test to TAP format output

2024-02-22 10:24:49 -08:00

mremap_dontunmap.c

selftests/mm: mremap_dontunmap: conform test to TAP format output

2024-02-22 10:24:49 -08:00

mremap_test.c

selftests/mm: fix -Wmaybe-uninitialized warnings

2025-01-13 22:40:53 -08:00

mseal_helpers.h

selftests/mm: mseal, self_elf: rename TEST_END_CHECK to REPORT_TEST_PASS

2024-07-03 19:30:07 -07:00

mseal_test.c

selftests/mm: Use PKEY_UNRESTRICTED macro

2025-02-17 18:16:36 +00:00

on-fault-limit.c

selftests/mm: run_vmtests: remove sudo and conform to tap

2024-02-22 15:38:55 -08:00

pagemap_ioctl.c

selftests/mm: pagemap_ioctl: Fix types mismatches shown by compiler options

2025-01-13 22:40:52 -08:00

pkey_sighandler_tests.c

selftests/mm: Use PKEY_UNRESTRICTED macro

2025-02-17 18:16:36 +00:00

pkey_util.c

selftests/mm: use sys_pkey helpers consistently

2025-01-13 22:40:56 -08:00

pkey-arm64.h

selftests/mm: rename pkey register macro

2025-01-13 22:40:56 -08:00

pkey-helpers.h

selftests/mm: Use PKEY_UNRESTRICTED macro

2025-02-17 18:16:36 +00:00

pkey-powerpc.h

selftests/mm: ensure pkey-*.h define inline functions only

2025-01-13 22:40:55 -08:00

pkey-x86.h

selftests/mm: ensure pkey-*.h define inline functions only

2025-01-13 22:40:55 -08:00

protection_keys.c

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2025-03-25 13:16:16 -07:00

run_vmtests.sh

selftests/mm: skip mlock tests if nobody user can't read it

2025-03-16 22:06:40 -07:00

settings

…

soft-dirty.c

selftests/mm: fix -Wmaybe-uninitialized warnings

2025-01-13 22:40:53 -08:00

split_huge_page_test.c

selftests/mm: speed up split_huge_page_test

2025-03-21 22:03:16 -07:00

test_hmm.sh

…

test_page_frag.sh

mm: page_frag: add a test module for page_frag

2024-11-11 10:56:26 -08:00

test_vmalloc.sh

…

thp_settings.c

selftests/mm: thp_settings: remove const from return type

2025-01-13 22:40:52 -08:00

thp_settings.h

selftests/mm: thp_settings: remove const from return type

2025-01-13 22:40:52 -08:00

thuge-gen.c

selftests/mm: fix thuge-gen test name uniqueness

2025-03-16 22:06:03 -07:00

transhuge-stress.c

selftests/mm: transhuge-stress: conform to TAP format output

2024-02-22 10:24:49 -08:00

uffd-common.c

selftests/mm/uffd: rename nr_cpus -> nr_parallel

2025-03-16 22:06:38 -07:00

uffd-common.h

selftests/mm/uffd: rename nr_cpus -> nr_parallel

2025-03-16 22:06:38 -07:00

uffd-stress.c

selftests/mm: don't fail uffd-stress if too many CPUs

2025-03-16 22:06:38 -07:00

uffd-unit-tests.c

selftests/mm: uffd-unit-tests support for hugepages > 2M

2025-03-21 22:03:15 -07:00

uffd-wp-mremap.c

selftests/mm: skip uffd-wp-mremap if userfaultfd not available

2025-03-16 22:06:38 -07:00

va_high_addr_switch.c

selftests/mm: skip test for non-LPA2 and non-LVA systems

2024-07-26 14:33:10 -07:00

va_high_addr_switch.sh

selftest/mm: va_high_addr_switch: add ppc64 support check

2025-04-01 15:17:11 -07:00

virtual_address_range.c

selftests/mm: virtual_address_range: avoid reading from VM_IO mappings

2025-01-25 20:22:44 -08:00

vm_util.c

selftests/mm: virtual_address_range: avoid reading from VM_IO mappings

2025-01-25 20:22:44 -08:00

vm_util.h

selftests/mm: add commentary about 9pfs bugs

2025-03-21 22:03:14 -07:00

write_hugetlb_memory.sh

…

write_to_hugetlbfs.c

selftests/mm: fix strncpy() length

2025-01-13 22:40:54 -08:00