1 | /* |
2 | * Copyright(c) 2011-2017 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 | */ |
24 | |
25 | #ifndef _GVT_PAGE_TRACK_H_ |
26 | #define _GVT_PAGE_TRACK_H_ |
27 | |
28 | #include <linux/types.h> |
29 | |
30 | struct intel_vgpu; |
31 | struct intel_vgpu_page_track; |
32 | |
33 | typedef int (*gvt_page_track_handler_t)( |
34 | struct intel_vgpu_page_track *page_track, |
35 | u64 gpa, void *data, int bytes); |
36 | |
37 | /* Track record for a write-protected guest page. */ |
38 | struct intel_vgpu_page_track { |
39 | gvt_page_track_handler_t handler; |
40 | bool tracked; |
41 | void *priv_data; |
42 | }; |
43 | |
44 | struct intel_vgpu_page_track *intel_vgpu_find_page_track( |
45 | struct intel_vgpu *vgpu, unsigned long gfn); |
46 | |
47 | int intel_vgpu_register_page_track(struct intel_vgpu *vgpu, |
48 | unsigned long gfn, gvt_page_track_handler_t handler, |
49 | void *priv); |
50 | void intel_vgpu_unregister_page_track(struct intel_vgpu *vgpu, |
51 | unsigned long gfn); |
52 | |
53 | int intel_vgpu_enable_page_track(struct intel_vgpu *vgpu, unsigned long gfn); |
54 | int intel_vgpu_disable_page_track(struct intel_vgpu *vgpu, unsigned long gfn); |
55 | |
56 | int intel_vgpu_page_track_handler(struct intel_vgpu *vgpu, u64 gpa, |
57 | void *data, unsigned int bytes); |
58 | |
59 | #endif |
60 | |