1/*
 2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
 3 *
 4 * Permission is hereby granted, free of charge, to any person obtaining a
 5 * copy of this software and associated documentation files (the "Software"),
 6 * to deal in the Software without restriction, including without limitation
 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 8 * and/or sell copies of the Software, and to permit persons to whom the
 9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Eddie Dong <eddie.dong@intel.com>
25 *    Dexuan Cui
26 *    Jike Song <jike.song@intel.com>
27 *
28 * Contributors:
29 *    Zhi Wang <zhi.a.wang@intel.com>
30 *
31 */
32
33#ifndef _GVT_HYPERCALL_H_
34#define _GVT_HYPERCALL_H_
35
36/*
37 * Specific GVT-g MPT modules function collections. Currently GVT-g supports
38 * both Xen and KVM by providing dedicated hypervisor-related MPT modules.
39 */
40struct intel_gvt_mpt {
41	int (*detect_host)(void);
42	int (*host_init)(struct device *dev, void *gvt, const void *ops);
43	void (*host_exit)(struct device *dev, void *gvt);
44	int (*attach_vgpu)(void *vgpu, unsigned long *handle);
45	void (*detach_vgpu)(unsigned long handle);
46	int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
47	unsigned long (*from_virt_to_mfn)(void *p);
48	int (*set_wp_page)(unsigned long handle, u64 gfn);
49	int (*unset_wp_page)(unsigned long handle, u64 gfn);
50	int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,
51			unsigned long len);
52	int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf,
53			 unsigned long len);
54	unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn);
55	int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn,
56			      unsigned long mfn, unsigned int nr, bool map);
57	int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
58			     bool map);
59};
60
61extern struct intel_gvt_mpt xengt_mpt;
62extern struct intel_gvt_mpt kvmgt_mpt;
63
64#endif /* _GVT_HYPERCALL_H_ */