1 files changed, 10 insertions, 1 deletions
diff --git a/tools/xc/lib/xc_private.c b/tools/xc/lib/xc_private.c
index 7fa201bc90..4331cc943c 100644
--- a/tools/xc/lib/xc_private.c
+++ b/tools/xc/lib/xc_private.c
@@ -16,7 +16,7 @@ int close_pfn_mapper(int pm_handle)
     return close(pm_handle);
 }
 
-void *map_pfn(int pm_handle, unsigned long pfn)
+void *map_pfn_writeable(int pm_handle, unsigned long pfn)
 {
     void *vaddr = mmap(NULL, PAGE_SIZE, PROT_READ|PROT_WRITE,
                        MAP_SHARED, pm_handle, pfn << PAGE_SHIFT);
@@ -25,6 +25,15 @@ void *map_pfn(int pm_handle, unsigned long pfn)
     return vaddr;
 }
 
+void *map_pfn_readonly(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);