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| author |   Ram Pai <linuxram@us.ibm.com> | 2020-06-04 16:52:39 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:06:27 -0700 |
| commit | 6e2c2d0fb7819a05765147286ed71d5bb96faa36 (patch) | |
| tree | a8dd21a1f77e3de465d6626d8d427a3e4c192667 /tools/testing/selftests/vm/protection_keys.c | |
| parent | selftests/vm/pkeys: detect write violation on a mapped access-denied-key page (diff) | |
| download | wireguard-linux-6e2c2d0fb7819a05765147286ed71d5bb96faa36.tar.xz wireguard-linux-6e2c2d0fb7819a05765147286ed71d5bb96faa36.zip | |
selftests/vm/pkeys: introduce a sub-page allocator
This introduces a new allocator that allocates 4K hardware pages to back
64K linux pages. This allocator is available only on powerpc.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Link: http://lkml.kernel.org/r/c4a82fa962ec71015b994fab1aaf83bdfd091553.1585646528.git.sandipan@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/vm/protection_keys.c')
| -rw-r--r-- | tools/testing/selftests/vm/protection_keys.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c index 8bb4de103874..d4952b57cc90 100644 --- a/tools/testing/selftests/vm/protection_keys.c +++ b/tools/testing/selftests/vm/protection_keys.c @@ -845,6 +845,7 @@ void *malloc_pkey_mmap_dax(long size, int prot, u16 pkey) void *(*pkey_malloc[])(long size, int prot, u16 pkey) = { malloc_pkey_with_mprotect, + malloc_pkey_with_mprotect_subpage, malloc_pkey_anon_huge, malloc_pkey_hugetlb /* can not do direct with the pkey_mprotect() API: |