xen/gnttab: Export resume_frames

Allow the platform the set resume_frames to a specific address. It will be
used on ARM because the region is give by the device tree.

diff --git a/sys/dev/xen/grant_table/grant_table.c b/sys/dev/xen/grant_table/grant_table.c
index 87e5676c544f4ee7686038fe0943ee9b15d16eaf..3b75cd1a3b98bd5e4480f1917b83730dd97c798c 100644 (file)
--- a/sys/dev/xen/grant_table/grant_table.c
+++ b/sys/dev/xen/grant_table/grant_table.c
@@ -505,7 +505,7 @@ unmap_pte_fn(pte_t *pte, struct page *pmd_page,
 }
 #endif
 
-static vm_paddr_t resume_frames;
+vm_paddr_t resume_frames;
 
 static int
 gnttab_map(unsigned int start_idx, unsigned int end_idx)