arm64: compat: Add CNTFRQ trap handler

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Just like CNTVCT, we need to handle userspace trapping into the
kernel if we're decided that the timer wasn't fit for purpose...
64bit userspace is already dealt with, but we're missing the
equivalent compat handling.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

...

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Marc Zyngier 2018-09-27 17:15:33 +01:00 • committed by Catalin Marinas

parent 50de013d22

commit 32a3e635fb

2 changed files with 16 additions and 0 deletions

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3

arch/arm64/include/asm/esr.h

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13

arch/arm64/kernel/traps.c

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