1 /* SPDX-License-Identifier: MIT */
2 
3 #ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
4 #define __XEN_PUBLIC_HVM_HVM_OP_H__
5 
6 #include <xen/interface/xen.h>
7 
8 /* Get/set subcommands: the second argument of the hypercall is a
9  * pointer to a xen_hvm_param struct. */
10 #define HVMOP_set_param           0
11 #define HVMOP_get_param           1
12 struct xen_hvm_param {
13     domid_t  domid;    /* IN */
14     uint32_t index;    /* IN */
15     uint64_t value;    /* IN/OUT */
16 };
17 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
18 
19 /* Hint from PV drivers for pagetable destruction. */
20 #define HVMOP_pagetable_dying       9
21 struct xen_hvm_pagetable_dying {
22     /* Domain with a pagetable about to be destroyed. */
23     domid_t  domid;
24     /* guest physical address of the toplevel pagetable dying */
25     aligned_u64 gpa;
26 };
27 typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
28 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
29 
30 enum hvmmem_type_t {
31     HVMMEM_ram_rw,             /* Normal read/write guest RAM */
32     HVMMEM_ram_ro,             /* Read-only; writes are discarded */
33     HVMMEM_mmio_dm,            /* Reads and write go to the device model */
34 };
35 
36 #define HVMOP_get_mem_type    15
37 /* Return hvmmem_type_t for the specified pfn. */
38 struct xen_hvm_get_mem_type {
39     /* Domain to be queried. */
40     domid_t domid;
41     /* OUT variable. */
42     uint16_t mem_type;
43     uint16_t pad[2]; /* align next field on 8-byte boundary */
44     /* IN variable. */
45     uint64_t pfn;
46 };
47 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);
48 
49 #if defined(__i386__) || defined(__x86_64__)
50 
51 /*
52  * HVMOP_set_evtchn_upcall_vector: Set a <vector> that should be used for event
53  *                                 channel upcalls on the specified <vcpu>. If set,
54  *                                 this vector will be used in preference to the
55  *                                 domain global callback via (see
56  *                                 HVM_PARAM_CALLBACK_IRQ).
57  */
58 #define HVMOP_set_evtchn_upcall_vector 23
59 struct xen_hvm_evtchn_upcall_vector {
60     uint32_t vcpu;
61     uint8_t vector;
62 };
63 typedef struct xen_hvm_evtchn_upcall_vector xen_hvm_evtchn_upcall_vector_t;
64 DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_evtchn_upcall_vector_t);
65 
66 #endif /* defined(__i386__) || defined(__x86_64__) */
67 
68 #endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
69