|  | /* Simple wrappers around HVM functions */ | 
|  | #ifndef XEN_HVM_H__ | 
|  | #define XEN_HVM_H__ | 
|  |  | 
|  | #include <xen/interface/hvm/params.h> | 
|  | #include <asm/xen/hypercall.h> | 
|  |  | 
|  | static inline int hvm_get_parameter(int idx, uint64_t *value) | 
|  | { | 
|  | struct xen_hvm_param xhv; | 
|  | int r; | 
|  |  | 
|  | xhv.domid = DOMID_SELF; | 
|  | xhv.index = idx; | 
|  | r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv); | 
|  | if (r < 0) { | 
|  | printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n", | 
|  | idx, r); | 
|  | return r; | 
|  | } | 
|  | *value = xhv.value; | 
|  | return r; | 
|  | } | 
|  |  | 
|  | #define HVM_CALLBACK_VIA_TYPE_VECTOR 0x2 | 
|  | #define HVM_CALLBACK_VIA_TYPE_SHIFT 56 | 
|  | #define HVM_CALLBACK_VECTOR(x) (((uint64_t)HVM_CALLBACK_VIA_TYPE_VECTOR)<<\ | 
|  | HVM_CALLBACK_VIA_TYPE_SHIFT | (x)) | 
|  |  | 
|  | #endif /* XEN_HVM_H__ */ |