[powerpc] implement page_is_removable()

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

diff --git a/xen/include/asm-powerpc/mm.h b/xen/include/asm-powerpc/mm.h
index caac7fd6d85fd40df88fe27e882becc3abdad67e..137d3a3c17f0e1b843e1345409918a9361850f52 100644 (file)
--- a/xen/include/asm-powerpc/mm.h
+++ b/xen/include/asm-powerpc/mm.h
@@ -158,6 +158,11 @@ static inline int get_page_and_type(struct page_info *page,
     return 1;
 }
 
+static inline int page_is_removable(struct page_info *page)
+{
+    return ((page->count_info & PGC_count_mask) == 1);
+}
+
 int get_page_type(struct page_info *page, u32 type);
 
 #define set_machinetophys(_mfn, _pfn) (trap(), 0)