LXR linux/drivers/gpu/drm/i915/gvt/hypercall.h

   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#include <linux/types.h>
  37
  38struct device;
  39
  40enum hypervisor_type {
  41        INTEL_GVT_HYPERVISOR_XEN = 0,
  42        INTEL_GVT_HYPERVISOR_KVM,
  43};
  44
  45/*
  46 * Specific GVT-g MPT modules function collections. Currently GVT-g supports
  47 * both Xen and KVM by providing dedicated hypervisor-related MPT modules.
  48 */
  49struct intel_gvt_mpt {
  50        enum hypervisor_type type;
  51        int (*host_init)(struct device *dev, void *gvt, const void *ops);
  52        void (*host_exit)(struct device *dev, void *gvt);
  53        int (*attach_vgpu)(void *vgpu, unsigned long *handle);
  54        void (*detach_vgpu)(void *vgpu);
  55        int (*inject_msi)(unsigned long handle, u32 addr, u16 data);
  56        unsigned long (*from_virt_to_mfn)(void *p);
  57        int (*enable_page_track)(unsigned long handle, u64 gfn);
  58        int (*disable_page_track)(unsigned long handle, u64 gfn);
  59        int (*read_gpa)(unsigned long handle, unsigned long gpa, void *buf,
  60                        unsigned long len);
  61        int (*write_gpa)(unsigned long handle, unsigned long gpa, void *buf,
  62                         unsigned long len);
  63        unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn);
  64
  65        int (*dma_map_guest_page)(unsigned long handle, unsigned long gfn,
  66                                  unsigned long size, dma_addr_t *dma_addr);
  67        void (*dma_unmap_guest_page)(unsigned long handle, dma_addr_t dma_addr);
  68
  69        int (*dma_pin_guest_page)(unsigned long handle, dma_addr_t dma_addr);
  70
  71        int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn,
  72                              unsigned long mfn, unsigned int nr, bool map);
  73        int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
  74                             bool map);
  75        int (*set_opregion)(void *vgpu);
  76        int (*set_edid)(void *vgpu, int port_num);
  77        int (*get_vfio_device)(void *vgpu);
  78        void (*put_vfio_device)(void *vgpu);
  79        bool (*is_valid_gfn)(unsigned long handle, unsigned long gfn);
  80};
  81
  82#endif /* _GVT_HYPERCALL_H_ */
  83