include/xen/interface/hvm/hvm_op.h

/* SPDX-License-Identifier: MIT */

#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__

#include <xen/interface/xen.h>

/* Get/set subcommands: the second argument of the hypercall is a
 * pointer to a xen_hvm_param struct. */
#define HVMOP_set_param           0
#define HVMOP_get_param           1
struct xen_hvm_param {
    domid_t  domid;    /* IN */
    uint32_t index;    /* IN */
    uint64_t value;    /* IN/OUT */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);

/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying       9
struct xen_hvm_pagetable_dying {
    /* Domain with a pagetable about to be destroyed. */
    domid_t  domid;
    /* guest physical address of the toplevel pagetable dying */
    aligned_u64 gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
 
enum hvmmem_type_t {
    HVMMEM_ram_rw,             /* Normal read/write guest RAM */
    HVMMEM_ram_ro,             /* Read-only; writes are discarded */
    HVMMEM_mmio_dm,            /* Reads and write go to the device model */
};

#define HVMOP_get_mem_type    15
/* Return hvmmem_type_t for the specified pfn. */
struct xen_hvm_get_mem_type {
    /* Domain to be queried. */
    domid_t domid;
    /* OUT variable. */
    uint16_t mem_type;
    uint16_t pad[2]; /* align next field on 8-byte boundary */
    /* IN variable. */
    uint64_t pfn;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);

#if defined(__i386__) || defined(__x86_64__)

/*
 * HVMOP_set_evtchn_upcall_vector: Set a <vector> that should be used for event
 *                                 channel upcalls on the specified <vcpu>. If set,
 *                                 this vector will be used in preference to the
 *                                 domain global callback via (see
 *                                 HVM_PARAM_CALLBACK_IRQ).
 */
#define HVMOP_set_evtchn_upcall_vector 23
struct xen_hvm_evtchn_upcall_vector {
    uint32_t vcpu;
    uint8_t vector;
};
typedef struct xen_hvm_evtchn_upcall_vector xen_hvm_evtchn_upcall_vector_t;
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_evtchn_upcall_vector_t);

#endif /* defined(__i386__) || defined(__x86_64__) */

#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */