1 files changed, 5 insertions, 1 deletions

diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h
index ff82ea7c4829..4dc514aabfe7 100644
--- a/include/asm-powerpc/lppaca.h
+++ b/include/asm-powerpc/lppaca.h
@@ -29,6 +29,8 @@
 //----------------------------------------------------------------------------
 #include <asm/types.h>
 
+/* The Hypervisor barfs if the lppaca crosses a page boundary.  A 1k
+ * alignment is sufficient to prevent this */
 struct lppaca {
 //=============================================================================
 // CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
@@ -127,7 +129,9 @@ struct lppaca {
 // CACHE_LINE_4-5 0x0100 - 0x01FF Contains PMC interrupt data
 //=============================================================================
         u8      pmc_save_area[256];     // PMC interrupt Area           x00-xFF
-};
+} __attribute__((__aligned__(0x400)));
+
+extern struct lppaca lppaca[];
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */