tree 652d9f30b5f018dee5783d06bdbc362d06e1815c
parent 6256b86e851942f4ec145d36a0c8f3673390b9d9
author James Morse <james.morse@arm.com> 1532080374 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1532262530 +0200

arm64: alternatives: use tpidr_el2 on VHE hosts

Commit 6d99b68933fbcf51f84fcbba49246ce1209ec193 upstream.

Now that KVM uses tpidr_el2 in the same way as Linux's cpu_offset in
tpidr_el1, merge the two. This saves KVM from save/restoring tpidr_el1
on VHE hosts, and allows future code to blindly access per-cpu variables
without triggering world-switch.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>