[PATCH] powerpc: Export htab start/end via device tree

The userspace kexec-tools need to know the location of the htab on non-lpar
machines, as well as the end of the kernel. Export via the device tree.

NB. This patch has been updated to use "linux,x" property names. You may
need to update your kexec-tools to match.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index fdbd9f9122f2..608fee7c7e20 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -59,6 +59,7 @@
 #include <asm/firmware.h>
 #include <asm/xmon.h>
 #include <asm/udbg.h>
+#include <asm/kexec.h>
 
 #include "setup.h"
 
@@ -415,6 +416,10 @@ void __init setup_system(void)
          */
         unflatten_device_tree();
 
+#ifdef CONFIG_KEXEC
+        kexec_setup();  /* requires unflattened device tree. */
+#endif
+
         /*
          * Fill the ppc64_caches & systemcfg structures with informations
          * retreived from the device-tree. Need to be called before