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(parent: 6729ce5) | patch
arm64: mm: Move ASID from TTBR0 to TTBR1
authorWill Deacon <will.deacon@arm.com>
Thu, 10 Aug 2017 12:19:09 +0000 (13:19 +0100)
committerWill Deacon <will.deacon@arm.com>
Mon, 11 Dec 2017 13:40:25 +0000 (13:40 +0000)
commit86c382bd2ed4c6c9a5aa33c3ccc3408410ad73d4
tree7a4e23ca3f04429b70898608c8db7a9b929fbfectree | snapshot
parent6729ce51db980c1fc9f3a98dd3c86ef8ab5bc820commit | diff
arm64: mm: Move ASID from TTBR0 to TTBR1

In preparation for mapping kernelspace and userspace with different
ASIDs, move the ASID to TTBR1 and update switch_mm to context-switch
TTBR0 via an invalid mapping (the zero page).

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Tested-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/include/asm/mmu_context.h diff | blob | history
arch/arm64/include/asm/pgtable-hwdef.h diff | blob | history
arch/arm64/include/asm/proc-fns.h diff | blob | history
arch/arm64/mm/proc.S diff | blob | history
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