Commit 9bae3ae5 authored Apr 03, 2017 by Marc Zyngier Committed by Christoffer Dall Apr 09, 2017

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



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>

parent 6c9ae25d

arch/arm64/kernel/hyp-stub.S

+0 −4

Original line number	Diff line number	Diff line
		@@ -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)