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 enum hypervisor_type {
37 INTEL_GVT_HYPERVISOR_XEN = 0,
38 INTEL_GVT_HYPERVISOR_KVM,
39 };
40
41 /*
42 * Specific GVT-g MPT modules function collections. Currently GVT-g supports
43 * both Xen and KVM by providing dedicated hypervisor-related MPT modules.
44 */
45 struct intel_gvt_mpt {
46 enum hypervisor_type type;
47 int (*host_init)(struct device *dev, void *gvt, const void *ops);
48 void (*host_exit)(struct device *dev);
49 int (*attach_vgpu)(void *vgpu, unsigned long *handle);
50 void (*detach_vgpu)(void *vgpu);
51 int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
52 unsigned long (*from_virt_to_mfn)(void *p);
53 int (*enable_page_track)(unsigned long handle, u64 gfn);
54 int (*disable_page_track)(unsigned long handle, u64 gfn);
55 int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,
56 unsigned long len);
57 int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf,
58 unsigned long len);
59 unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn);
60
61 int (*dma_map_guest_page)(unsigned long handle, unsigned long gfn,
62 unsigned long size, dma_addr_t *dma_addr);
63 void (*dma_unmap_guest_page)(unsigned long handle, dma_addr_t dma_addr);
64
65 int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn,
66 unsigned long mfn, unsigned int nr, bool map);
67 int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
68 bool map);
69 int (*set_opregion)(void *vgpu);
70 int (*set_edid)(void *vgpu, int port_num);
71 int (*get_vfio_device)(void *vgpu);
72 void (*put_vfio_device)(void *vgpu);
73 bool (*is_valid_gfn)(unsigned long handle, unsigned long gfn);
74 };
75
76 extern struct intel_gvt_mpt xengt_mpt;
77
78 #endif /* _GVT_HYPERCALL_H_ */