xen: fix virt_to_mfn()

Need to shift by 12 to get to a frame number. With this the host accepts the guest interface.
2014-11-02 15:43:20 +02:00
parent 6bb8d687d0
commit 6269fe2bdf
1 changed files with 1 additions and 1 deletions
--- a/core/xen/gntalloc.cc
+++ b/core/xen/gntalloc.cc
@@ -116,7 +116,7 @@ public:
 // and in that case we'll need to have an extra step here
 inline uint64_t
 virt_to_mfn(void *virt) {
-    return virt_to_phys(virt);
+    return virt_to_phys(virt) >> 12;
 }

 gntref& kernel_grant_head::new_ref() {