text: /*
   * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *
   * Authors:
   *    Eddie Dong <eddie.dong@intel.com>
   *    Dexuan Cui
   *    Jike Song <jike.song@intel.com>
   *
   * Contributors:
   *    Zhi Wang <zhi.a.wang@intel.com>
   *
   */
  
  #ifndef _GVT_HYPERCALL_H_
  #define _GVT_HYPERCALL_H_
  
  #include <linux/types.h>
  
  struct device;
  
  enum hypervisor_type {
  	INTEL_GVT_HYPERVISOR_XEN = 0,
  	INTEL_GVT_HYPERVISOR_KVM,
  };
  
  /*
   * Specific GVT-g MPT modules function collections. Currently GVT-g supports
   * both Xen and KVM by providing dedicated hypervisor-related MPT modules.
   */
  struct intel_gvt_mpt {
  	enum hypervisor_type type;
  	int (*host_init)(struct device *dev, void *gvt, const void *ops);
  	void (*host_exit)(struct device *dev);
  	int (*attach_vgpu)(void *vgpu, unsigned long *handle);
  	void (*detach_vgpu)(void *vgpu);
  	int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
  	unsigned long (*from_virt_to_mfn)(void *p);
  	int (*enable_page_track)(unsigned long handle, u64 gfn);
  	int (*disable_page_track)(unsigned long handle, u64 gfn);
  	int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,
  			unsigned long len);
  	int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf,
  			 unsigned long len);
  	unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn);
  
  	int (*dma_map_guest_page)(unsigned long handle, unsigned long gfn,
  				  unsigned long size, dma_addr_t *dma_addr);
  	void (*dma_unmap_guest_page)(unsigned long handle, dma_addr_t dma_addr);
  
  	int (*dma_pin_guest_page)(unsigned long handle, dma_addr_t dma_addr);
  
  	int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn,
  			      unsigned long mfn, unsigned int nr, bool map);
  	int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
  			     bool map);
  	int (*set_opregion)(void *vgpu);
  	int (*set_edid)(void *vgpu, int port_num);
  	int (*get_vfio_device)(void *vgpu);
  	void (*put_vfio_device)(void *vgpu);
  	bool (*is_valid_gfn)(unsigned long handle, unsigned long gfn);
  };
  
  #endif /* _GVT_HYPERCALL_H_ */
  