xen: Fix 32-bit boot.

Signed-off-by: Keir Fraser <keir@xensource.com>

diff --git a/xen/arch/x86/domain_build.c b/xen/arch/x86/domain_build.c
index 82689328095a51beca809f8427664c0f839ad578..7318e2ef54bc728e1d90c5ec1bc541f72a78d309 100644 (file)
--- a/xen/arch/x86/domain_build.c
+++ b/xen/arch/x86/domain_build.c
@@ -434,8 +434,7 @@ int __init construct_dom0(
 
 #ifdef __i386__
     /* Ensure that our low-memory 1:1 mapping covers the allocation. */
-    page = alloc_domheap_pages(d, order,
-                               MEMF_bits(30 + (v_start >> 31)));
+    page = alloc_domheap_pages(d, order, MEMF_bits(30));
 #else
     page = alloc_domheap_pages(d, order, 0);
 #endif