[PULL 38/79] arm64: hyp-stub: Don't save lr in the EL1 code
Christoffer Dall
cdall at linaro.org
Sun Apr 23 13:08:48 EDT 2017
From: Marc Zyngier <marc.zyngier at 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 at arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
Signed-off-by: Christoffer Dall <cdall at linaro.org>
---
arch/arm64/kernel/hyp-stub.S | 4 ----
1 file changed, 4 deletions(-)
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)
--
2.9.0
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