include/xen/interface/hvm/hvm_op.h

   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
  28 struct xen_hvm_param {
  29     domid_t  domid;    /* IN */
  30     uint32_t index;    /* IN */
  31     uint64_t value;    /* IN/OUT */
  32 };
  33 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
  34
  35 /* Hint from PV drivers for pagetable destruction. */
  36 #define HVMOP_pagetable_dying       9
  37 struct 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 };
  43 typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
  44 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
  45
  46 enum 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. */
  54 struct 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 };
  63 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);
  64
  65 #endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */