xen/arm: implement hvm_op

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

diff --git a/arch/arm/include/asm/xen/hypercall.h b/arch/arm/include/asm/xen/hypercall.h
index 2fe7434467b4b222158512c9dbdf3f5d2df075b7..7503256aab992eaf5d3438b40889539409b5839e 100644 (file)
--- a/arch/arm/include/asm/xen/hypercall.h
+++ b/arch/arm/include/asm/xen/hypercall.h
@@ -189,7 +189,7 @@ HYPERVISOR_event_channel_op(int cmd, void *arg)
 
 static inline unsigned long HYPERVISOR_hvm_op(int op, void *arg)
 {
-       return -ENOSYS;
+       return _hypercall2(int, HYPERCALL(hvm_op), op, arg);
 }
 
        static inline int