xen: add dom0_op hypercall

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index d240ea950519343231514be75f4e6a6cea15dd8f..0c9894e0ebfb599980efd3a71a64e417ff2aedc5 100644 (file)
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -45,6 +45,7 @@
 #include <xen/interface/xen.h>
 #include <xen/interface/sched.h>
 #include <xen/interface/physdev.h>
+#include <xen/interface/platform.h>
 
 /*
  * The hypercall asms have to meet several constraints:
@@ -298,6 +299,13 @@ HYPERVISOR_set_timer_op(u64 timeout)
        return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
 }
 
+static inline int
+HYPERVISOR_dom0_op(struct xen_platform_op *platform_op)
+{
+       platform_op->interface_version = XENPF_INTERFACE_VERSION;
+       return _hypercall1(int, dom0_op, platform_op);
+}
+
 static inline int
 HYPERVISOR_set_debugreg(int reg, unsigned long value)
 {