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/hypercall.h>
   7
   8 static inline unsigned long hvm_get_parameter(int idx)
   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 0;
  20         }
  21         return xhv.value;
  22 }
  23
  24 #endif /* XEN_HVM_H__ */