include/xen/hvm.h

   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
   8 static 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__ */