[PATCH v4 03/28] arm64: hyp-stub: Don't save lr in the EL1 code
From: Marc Zyngier <hidden>
Date: 2017-03-21 19:20:33
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
The EL2 code is not corrupting lr anymore, so don't bother preserving it in the EL1 trampoline code. Signed-off-by: Marc Zyngier <redacted> --- 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 e4215ad06930..193dfb25ce2f 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)
--
2.11.0