From 18f19aa62a267f2f759e278018f1032adf4c3774 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Fri, 14 May 2010 12:38:24 +0100
Subject: xen: Add support for HVM hypercalls.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 include/xen/hvm.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 include/xen/hvm.h

(limited to 'include/xen/hvm.h')

diff --git a/include/xen/hvm.h b/include/xen/hvm.h
new file mode 100644
index 000000000000..5dfe8fb86e67
--- /dev/null
+++ b/include/xen/hvm.h
@@ -0,0 +1,24 @@
+/* Simple wrappers around HVM functions */
+#ifndef XEN_HVM_H__
+#define XEN_HVM_H__
+
+#include <xen/interface/hvm/params.h>
+
+static inline int hvm_get_parameter(int idx, uint64_t *value)
+{
+	struct xen_hvm_param xhv;
+	int r;
+
+	xhv.domid = DOMID_SELF;
+	xhv.index = idx;
+	r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
+	if (r < 0) {
+		printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n",
+			idx, r);
+		return r;
+	}
+	*value = xhv.value;
+	return r;
+}
+
+#endif /* XEN_HVM_H__ */
-- 
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