[PATCH 2/2] xen: don't use sysret for sysexit32

[Jeremy Fitzhardinge]

When implementing sysexit32, don't let Xen use sysret to return to
userspace.  That results in usermode register state being trashed.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/xen-asm_64.S |    2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

===================================================================
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -173,7 +173,7 @@
	pushq $__USER32_CS
	pushq %rdx

-	pushq $VGCF_in_syscall
+	pushq $0
1:	jmp hypercall_iret
ENDPATCH(xen_sysexit)
RELOC(xen_sysexit, 1b+1)


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