$NetBSD: patch-ak,v 1.1 2004/05/08 18:24:00 cl Exp $

--- xc/lib/xc_private.c.orig	2004-04-18 04:29:09.000000000 +0200
+++ xc/lib/xc_private.c
@@ -8,7 +8,7 @@
 
 int init_pfn_mapper(void)
 {
-    return open("/dev/mem", O_RDWR);
+    return open("/kern/xen/machmem", O_RDWR);
 }
 
 int close_pfn_mapper(int pm_handle)
@@ -25,6 +25,15 @@ void *map_pfn(int pm_handle, unsigned lo
     return vaddr;
 }
 
+void *map_pfn_ro(int pm_handle, unsigned long pfn)
+{
+    void *vaddr = mmap(NULL, PAGE_SIZE, PROT_READ,
+                       MAP_SHARED, pm_handle, pfn << PAGE_SHIFT);
+    if ( vaddr == MAP_FAILED )
+        return NULL;
+    return vaddr;
+}
+
 void unmap_pfn(int pm_handle, void *vaddr)
 {
     (void)munmap(vaddr, PAGE_SIZE);