xen: arm: stub out steal_page.

Callers handle the failure gracefully, can be called by
GNTTABOP_transfer, XENMEM_exchange or tmem.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

diff --git a/xen/arch/arm/dummy.S b/xen/arch/arm/dummy.S
index dec72bb9e151e719570c1823971e3fdc6979a9b4..41c9af86f81ad050c4f010ca3d5bc6100287414b 100644 (file)
--- a/xen/arch/arm/dummy.S
+++ b/xen/arch/arm/dummy.S
@@ -9,9 +9,6 @@ x:      mov pc, lr
 /* PIRQ support */
 DUMMY(nr_irqs_gsi);
 
-/* Grant Tables */
-DUMMY(steal_page);
-
 /* Page Offlining */
 DUMMY(page_is_ram_type);
 

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index 855f83d92bd2435dde151171844af925fd65d829..687eb55ff7102be8a1c6b85a88cfebaff097cbac 100644 (file)
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -435,6 +435,12 @@ int donate_page(struct domain *d, struct page_info *page, unsigned int memflags)
     return -ENOSYS;
 }
 
+int steal_page(
+    struct domain *d, struct page_info *page, unsigned int memflags)
+{
+    return -1;
+}
+
 void share_xen_page_with_guest(struct page_info *page,
                           struct domain *d, int readonly)
 {