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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-07-09 08:59:45 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 11:05:36 +0200 |
| commit | 0b80d3cdb0fe028ecb63ea9d330d8fba1cecf294 (patch) | |
| tree | f68360cf079a76dda5a580c813f16ee1d7d48f5a /tools/testing | |
| parent | a075f690c28eaea5616fad4fd8c698ee8b23e2d9 (diff) | |
| download | linux-stable-0b80d3cdb0fe028ecb63ea9d330d8fba1cecf294.tar.gz linux-stable-0b80d3cdb0fe028ecb63ea9d330d8fba1cecf294.tar.bz2 linux-stable-0b80d3cdb0fe028ecb63ea9d330d8fba1cecf294.zip | |
selftests/powerpc: ptrace-pkey: Don't update expected UAMOR value
[ Upstream commit 3563b9bea0ca7f53e4218b5e268550341a49f333 ]
With commit 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation
must not change pkey registers") we are not updating UAMOR on key
allocation. So don't update the expected uamor value in the test.
Fixes: 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation must not change pkey registers")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200709032946.881753-23-aneesh.kumar@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c index bc33d748d95b..3694613f418f 100644 --- a/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c +++ b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c @@ -101,15 +101,20 @@ static int child(struct shared_info *info) */ info->invalid_amr = info->amr2 | (~0x0UL & ~info->expected_uamor); + /* + * if PKEY_DISABLE_EXECUTE succeeded we should update the expected_iamr + */ if (disable_execute) info->expected_iamr |= 1ul << pkeyshift(pkey1); else info->expected_iamr &= ~(1ul << pkeyshift(pkey1)); - info->expected_iamr &= ~(1ul << pkeyshift(pkey2) | 1ul << pkeyshift(pkey3)); + /* + * We allocated pkey2 and pkey 3 above. Clear the IAMR bits. + */ + info->expected_iamr &= ~(1ul << pkeyshift(pkey2)); + info->expected_iamr &= ~(1ul << pkeyshift(pkey3)); - info->expected_uamor |= 3ul << pkeyshift(pkey1) | - 3ul << pkeyshift(pkey2); /* * Create an IAMR value different from expected value. * Kernel will reject an IAMR and UAMOR change. |