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arm64: hyp-stub: Don't save lr in the EL1 code

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The EL2 code is not corrupting lr anymore, so don't bother preserving
it in the EL1 trampoline code.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
This commit is contained in:
Marc Zyngier 2017-04-03 19:37:36 +01:00 committed by Christoffer Dall
parent 6c9ae25dfc
commit 9bae3ae513
1 changed files with 0 additions and 4 deletions
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4
arch/arm64/kernel/hyp-stub.S
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@ -116,18 +116,14 @@ ENDPROC(\label)
*/
ENTRY(__hyp_get_vectors)
str lr, [sp, #-16]!
mov x0, #HVC_GET_VECTORS
hvc #0
ldr lr, [sp], #16
ret
ENDPROC(__hyp_get_vectors)
ENTRY(__hyp_set_vectors)
str lr, [sp, #-16]!
mov x1, x0
mov x0, #HVC_SET_VECTORS
hvc #0
ldr lr, [sp], #16
ret
ENDPROC(__hyp_set_vectors)