1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright(c) 2011-2017 Intel Corporation. All rights reserved. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a 5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"), 6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation 7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the 9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions: 10*4882a593Smuzhiyun * 11*4882a593Smuzhiyun * The above copyright notice and this permission notice (including the next 12*4882a593Smuzhiyun * paragraph) shall be included in all copies or substantial portions of the 13*4882a593Smuzhiyun * Software. 14*4882a593Smuzhiyun * 15*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18*4882a593Smuzhiyun * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19*4882a593Smuzhiyun * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20*4882a593Smuzhiyun * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21*4882a593Smuzhiyun * SOFTWARE. 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #ifndef _GVT_PAGE_TRACK_H_ 26*4882a593Smuzhiyun #define _GVT_PAGE_TRACK_H_ 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun #include <linux/types.h> 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun struct intel_vgpu; 31*4882a593Smuzhiyun struct intel_vgpu_page_track; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun typedef int (*gvt_page_track_handler_t)( 34*4882a593Smuzhiyun struct intel_vgpu_page_track *page_track, 35*4882a593Smuzhiyun u64 gpa, void *data, int bytes); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* Track record for a write-protected guest page. */ 38*4882a593Smuzhiyun struct intel_vgpu_page_track { 39*4882a593Smuzhiyun gvt_page_track_handler_t handler; 40*4882a593Smuzhiyun bool tracked; 41*4882a593Smuzhiyun void *priv_data; 42*4882a593Smuzhiyun }; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct intel_vgpu_page_track *intel_vgpu_find_page_track( 45*4882a593Smuzhiyun struct intel_vgpu *vgpu, unsigned long gfn); 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun int intel_vgpu_register_page_track(struct intel_vgpu *vgpu, 48*4882a593Smuzhiyun unsigned long gfn, gvt_page_track_handler_t handler, 49*4882a593Smuzhiyun void *priv); 50*4882a593Smuzhiyun void intel_vgpu_unregister_page_track(struct intel_vgpu *vgpu, 51*4882a593Smuzhiyun unsigned long gfn); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun int intel_vgpu_enable_page_track(struct intel_vgpu *vgpu, unsigned long gfn); 54*4882a593Smuzhiyun int intel_vgpu_disable_page_track(struct intel_vgpu *vgpu, unsigned long gfn); 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun int intel_vgpu_page_track_handler(struct intel_vgpu *vgpu, u64 gpa, 57*4882a593Smuzhiyun void *data, unsigned int bytes); 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun #endif 60