kselftest/arm64: Verify mte tag inclusion via prctl
This testcase verifies that the tag generated with "irg" instruction
contains only included tags. This is done via prtcl call.
This test covers 4 scenarios,
* At least one included tag.
* More than one included tags.
* All included.
* None included.
Co-developed-by: Gabor Kertesz <gabor.kertesz@arm.com>
Signed-off-by: Gabor Kertesz <gabor.kertesz@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201002115630.24683-3-amit.kachhap@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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