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