[PATCH] KJH: test: clobber regs

[Kevin Hilman]

---
 arch/arm64/kernel/entry.S | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 520da4c02ece..232f0200e88d 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -36,6 +36,25 @@
 	.macro ct_user_exit, restore = 0
 #ifdef CONFIG_CONTEXT_TRACKING
 	bl	context_tracking_user_exit
+ 	movz	x0, #0xff, lsl #48
+	movz	x1, #0xff, lsl #48
+	movz	x2, #0xff, lsl #48
+	movz	x3, #0xff, lsl #48
+	movz	x4, #0xff, lsl #48
+	movz	x5, #0xff, lsl #48
+	movz	x6, #0xff, lsl #48
+	movz	x7, #0xff, lsl #48
+	movz	x8, #0xff, lsl #48
+	movz	x9, #0xff, lsl #48
+	movz	x10, #0xff, lsl #48
+	movz	x11, #0xff, lsl #48
+	movz	x12, #0xff, lsl #48
+	movz	x13, #0xff, lsl #48
+	movz	x14, #0xff, lsl #48
+	movz	x15, #0xff, lsl #48
+	movz	x16, #0xff, lsl #48
+	movz	x17, #0xff, lsl #48
+	movz	x18, #0xff, lsl #48
 	.if \restore == 1
 	/*
 	 * Save/restore needed during syscalls.  Restore syscall arguments from
@@ -60,6 +79,25 @@
 	push    x0, x1
 	.endif
 	bl	context_tracking_user_enter
+ 	movz	x0, #0xff, lsl #48
+	movz	x1, #0xff, lsl #48
+	movz	x2, #0xff, lsl #48
+	movz	x3, #0xff, lsl #48
+	movz	x4, #0xff, lsl #48
+	movz	x5, #0xff, lsl #48
+	movz	x6, #0xff, lsl #48
+	movz	x7, #0xff, lsl #48
+	movz	x8, #0xff, lsl #48
+	movz	x9, #0xff, lsl #48
+	movz	x10, #0xff, lsl #48
+	movz	x11, #0xff, lsl #48
+	movz	x12, #0xff, lsl #48
+	movz	x13, #0xff, lsl #48
+	movz	x14, #0xff, lsl #48
+	movz	x15, #0xff, lsl #48
+	movz	x16, #0xff, lsl #48
+	movz	x17, #0xff, lsl #48
+	movz	x18, #0xff, lsl #48
 	.if \save == 1
 	pop     x0, x1
 	pop     x2, x3
-- 
1.9.2

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