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__ */ 31