linux/include/xen/hvm.h
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   1/* Simple wrappers around HVM functions */
   2#ifndef XEN_HVM_H__
   3#define XEN_HVM_H__
   4
   5#include <xen/interface/hvm/params.h>
   6#include <asm/xen/hypercall.h>
   7
   8static inline int hvm_get_parameter(int idx, uint64_t *value)
   9{
  10        struct xen_hvm_param xhv;
  11        int r;
  12
  13        xhv.domid = DOMID_SELF;
  14        xhv.index = idx;
  15        r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
  16        if (r < 0) {
  17                printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n",
  18                        idx, r);
  19                return r;
  20        }
  21        *value = xhv.value;
  22        return r;
  23}
  24
  25#define HVM_CALLBACK_VIA_TYPE_VECTOR 0x2
  26#define HVM_CALLBACK_VIA_TYPE_SHIFT 56
  27#define HVM_CALLBACK_VECTOR(x) (((uint64_t)HVM_CALLBACK_VIA_TYPE_VECTOR)<<\
  28                HVM_CALLBACK_VIA_TYPE_SHIFT | (x))
  29
  30#endif /* XEN_HVM_H__ */
  31
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