arm64: Implement task_cpu_possible_mask()

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Provide an implementation of task_cpu_possible_mask() so that we can
prevent 64-bit-only cores being added to the 'cpus_mask' for compat
tasks on systems with mismatched 32-bit support at EL0,

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210730112443.23245-11-will@kernel.org

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Will Deacon 2021-07-30 12:24:37 +01:00 • committed by Peter Zijlstra

parent c94d89fafa

commit d82158fa6d

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arch/arm64/include/asm/mmu_context.h

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