[XenPPC] [linux-ppc-2.6] [XEN][POWERPC] Make sure that Xen Linux code can run if Xen is not present

[Xen patchbot-linux-ppc-2.6 <patchbot-linux-ppc-2.6@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
# Node ID 4ab8b63fcff117bec150b9f6afd3ff292f51c1dd
# Parent  298b4a676daeecb543e6372fbb78a16e385378a5
[XEN][POWERPC] Make sure that Xen Linux code can run if Xen is not present

Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
Acked-by: Amos Waterland <apw@xxxxxxxxxx>
---
 include/asm-powerpc/xen/asm/hypervisor.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -r 298b4a676dae -r 4ab8b63fcff1 include/asm-powerpc/xen/asm/hypervisor.h
--- a/include/asm-powerpc/xen/asm/hypervisor.h  Tue Oct 24 06:34:37 2006 -0400
+++ b/include/asm-powerpc/xen/asm/hypervisor.h  Tue Oct 24 11:24:33 2006 -0400
@@ -46,7 +46,8 @@ extern start_info_t *xen_start_info;
 extern start_info_t *xen_start_info;
 
 #ifdef CONFIG_XEN_PRIVILEGED_GUEST
-#define is_initial_xendomain() (!!(xen_start_info->flags & SIF_INITDOMAIN))
+#define is_initial_xendomain() (xen_start_info && \
+                               (xen_start_info->flags & SIF_INITDOMAIN))
 #else
 #define is_initial_xendomain() 0
 #endif

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