linux/tools/testing
Vincenzo Frascino 29f0808816 kselftest/arm64: check GCR_EL1 after context switch
This test is specific to MTE and verifies that the GCR_EL1 register is
context switched correctly.

It spawns 1024 processes and each process spawns 5 threads.  Each thread
writes a random setting of GCR_EL1 through the prctl() system call and
reads it back verifying that it is the same.  If the values are not the
same it reports a failure.

Note: The test has been extended to verify that even SYNC and ASYNC mode
setting is preserved correctly over context switching.

Link: https://lkml.kernel.org/r/b51a165426e906e7ec8a68d806ef3f8cd92581a6.1606161801.git.andreyknvl@google.com
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22 12:55:08 -08:00
..
fault-injection
ktest ktest.pl: Fix the logic for truncating the size of the log file for email 2020-11-30 16:41:00 -05:00
kunit kunit: kunit_tool: Correctly parse diagnostic messages 2020-12-01 15:31:04 -07:00
nvdimm x86, libnvdimm/test: Remove COPY_MC_TEST 2020-10-26 18:08:35 +01:00
radix-tree ida: Free allocated bitmap in error path 2020-10-07 09:11:33 -04:00
scatterlist RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
selftests kselftest/arm64: check GCR_EL1 after context switch 2020-12-22 12:55:08 -08:00
vsock