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[PULL,38/79] arm64: hyp-stub: Don't save lr in the EL1 code

Message ID 20170423170929.27334-39-cdall@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Christoffer Dall April 23, 2017, 5:08 p.m. UTC 
From: Marc Zyngier <marc.zyngier@arm.com>

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>
---
 arch/arm64/kernel/hyp-stub.S | 4 ----
 1 file changed, 4 deletions(-)
diff mbox

Patch

diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index e4215ad..193dfb2 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -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)