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#include <xen/interface/xen.h>
  25
  26/* Get/set subcommands: the second argument of the hypercall is a
  27 * pointer to a xen_hvm_param struct. */
  28#define HVMOP_set_param           0
  29#define HVMOP_get_param           1
  30struct xen_hvm_param {
  31    domid_t  domid;    /* IN */
  32    uint32_t index;    /* IN */
  33    uint64_t value;    /* IN/OUT */
  34};
  35DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
  36
  37/* Hint from PV drivers for pagetable destruction. */
  38#define HVMOP_pagetable_dying       9
  39struct xen_hvm_pagetable_dying {
  40    /* Domain with a pagetable about to be destroyed. */
  41    domid_t  domid;
  42    /* guest physical address of the toplevel pagetable dying */
  43    aligned_u64 gpa;
  44};
  45typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
  46DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
  47 
  48enum hvmmem_type_t {
  49    HVMMEM_ram_rw,             /* Normal read/write guest RAM */
  50    HVMMEM_ram_ro,             /* Read-only; writes are discarded */
  51    HVMMEM_mmio_dm,            /* Reads and write go to the device model */
  52};
  53
  54#define HVMOP_get_mem_type    15
  55/* Return hvmmem_type_t for the specified pfn. */
  56struct xen_hvm_get_mem_type {
  57    /* Domain to be queried. */
  58    domid_t domid;
  59    /* OUT variable. */
  60    uint16_t mem_type;
  61    uint16_t pad[2]; /* align next field on 8-byte boundary */
  62    /* IN variable. */
  63    uint64_t pfn;
  64};
  65DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);
  66
  67#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
  68