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由 Will Deacon 提交于
In preparation for separate kernel/user ASIDs, allocate them in pairs for each mm_struct. The bottom bit distinguishes the two: if it is set, then the ASID will map only userspace. Reviewed-by: NMark Rutland <mark.rutland@arm.com> Tested-by: NLaura Abbott <labbott@redhat.com> Tested-by: NShanker Donthineni <shankerd@codeaurora.org> Signed-off-by: NWill Deacon <will.deacon@arm.com>
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