linux/include/xen/interface/hvm/hvm_op.h
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   1/*
   2 * Permission is hereby granted, free of charge, to any person obtaining a copy
   3 * of this software and associated documentation files (the "Software"), to
   4 * deal in the Software without restriction, including without limitation the
   5 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   6 * sell copies of the Software, and to permit persons to whom the Software is
   7 * furnished to do so, subject to the following conditions:
   8 *
   9 * The above copyright notice and this permission notice shall be included in
  10 * all copies or substantial portions of the Software.
  11 *
  12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  17 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  18 * DEALINGS IN THE SOFTWARE.
  19 */
  20
  21#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
  22#define __XEN_PUBLIC_HVM_HVM_OP_H__
  23
  24/* Get/set subcommands: the second argument of the hypercall is a
  25 * pointer to a xen_hvm_param struct. */
  26#define HVMOP_set_param           0
  27#define HVMOP_get_param           1
  28struct xen_hvm_param {
  29    domid_t  domid;    /* IN */
  30    uint32_t index;    /* IN */
  31    uint64_t value;    /* IN/OUT */
  32};
  33DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
  34
  35/* Hint from PV drivers for pagetable destruction. */
  36#define HVMOP_pagetable_dying       9
  37struct xen_hvm_pagetable_dying {
  38    /* Domain with a pagetable about to be destroyed. */
  39    domid_t  domid;
  40    /* guest physical address of the toplevel pagetable dying */
  41    aligned_u64 gpa;
  42};
  43typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
  44DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
  45 
  46enum hvmmem_type_t {
  47    HVMMEM_ram_rw,             /* Normal read/write guest RAM */
  48    HVMMEM_ram_ro,             /* Read-only; writes are discarded */
  49    HVMMEM_mmio_dm,            /* Reads and write go to the device model */
  50};
  51
  52#define HVMOP_get_mem_type    15
  53/* Return hvmmem_type_t for the specified pfn. */
  54struct xen_hvm_get_mem_type {
  55    /* Domain to be queried. */
  56    domid_t domid;
  57    /* OUT variable. */
  58    uint16_t mem_type;
  59    uint16_t pad[2]; /* align next field on 8-byte boundary */
  60    /* IN variable. */
  61    uint64_t pfn;
  62};
  63DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);
  64
  65#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
  66