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