arm64: cpufeature: Track user visible fields

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Track the user visible fields of a CPU feature register. This will be
used for exposing the value to the userspace. All the user visible
fields of a feature register will be passed on as it is, while the
others would be filled with their respective safe value.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Suzuki K Poulose 2017-01-09 17:28:30 +00:00 • committed by Will Deacon

parent 8c2dcbd2c4

commit fe4fbdbcdd

3 changed files with 113 additions and 93 deletions

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11

arch/arm64/include/asm/cpufeature.h

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193

arch/arm64/kernel/cpufeature.c

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2

arch/arm64/kernel/traps.c

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