[v2,4/5] xen: move xenforeignmemory compat layer into common place

Commit Message

Ian Campbell Feb. 10, 2016, 11:07 a.m. UTC

Now that we no longer support Xen 4.2 and earlier only the <470 case
needs this so it can live with all the others.

Signed-off-by: Ian Campbell <[e-mail]>
Reviewed-by: Stefano Stabellini <[e-mail]>
---
 include/hw/xen/xen_common.h | 34 ++++++++++++++--------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

Patch

diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h
index 254ef14..7a3cce0 100644
--- a/include/hw/xen/xen_common.h
+++ b/include/hw/xen/xen_common.h
@@ -53,7 +53,20 @@  typedef xc_gnttab xengnttab_handle;
 #define xengnttab_map_grant_refs(h, c, d, r, p) \
     xc_gnttab_map_grant_refs(h, c, d, r, p)
 
-/* See below for xenforeignmemory_* APIs */
+#define xenforeignmemory_open(l, f) xen_xc
+
+static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
+                                         int prot, size_t pages,
+                                         const xen_pfn_t arr[/*pages*/],
+                                         int err[/*pages*/])
+{
+    if (err)
+        return xc_map_foreign_bulk(h, dom, prot, arr, err, pages);
+    else
+        return xc_map_foreign_pages(h, dom, prot, arr, pages);
+}
+
+#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
 
 #else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 471 */
 
@@ -359,23 +372,4 @@  static inline int xen_domain_create(xc_interface *xc, uint32_t ssidref,
 #endif
 #endif
 
-#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 471
-
-#define xenforeignmemory_open(l, f) xen_xc
-
-static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
-                                         int prot, size_t pages,
-                                         const xen_pfn_t arr[/*pages*/],
-                                         int err[/*pages*/])
-{
-    if (err)
-        return xc_map_foreign_bulk(h, dom, prot, arr, err, pages);
-    else
-        return xc_map_foreign_pages(h, dom, prot, arr, pages);
-}
-
-#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
-
-#endif
-
 #endif /* QEMU_HW_XEN_COMMON_H */