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26 #include <xen/interface/hvm/params.h>
29 * \brief Wrapper function to obtain a HVM parameter value.
31 * \param index HVM parameter index; see <xen/interface/hvm/params.h>.
33 * \returns 0 on failure; the value of the parameter otherwise.
35 static inline unsigned long
36 hvm_get_parameter(int index)
38 struct xen_hvm_param xhv;
41 xhv.domid = DOMID_SELF;
43 error = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
45 printf("%s: error %d trying to get %d\n", __func__,
52 /** The callback method types for Hypervisor event delivery to our domain. */
57 HVM_CB_TYPE_MASK = 0xFF,
58 HVM_CB_TYPE_SHIFT = 56
61 /** Format for specifying a GSI type callback. */
63 HVM_CB_GSI_GSI_MASK = 0xFFFFFFFF,
64 HVM_CB_GSI_GSI_SHIFT = 0
66 #define HVM_CALLBACK_GSI(gsi) \
67 (((uint64_t)HVM_CB_TYPE_GSI << HVM_CB_TYPE_SHIFT) \
68 | ((gsi) & HVM_CB_GSI_GSI_MASK) << HVM_CB_GSI_GSI_SHIFT)
70 /** Format for specifying a virtual PCI interrupt line GSI style callback. */
72 HVM_CB_PCI_INTX_INTPIN_MASK = 0x3,
73 HVM_CB_PCI_INTX_INTPIN_SHIFT = 0,
74 HVM_CB_PCI_INTX_SLOT_MASK = 0x1F,
75 HVM_CB_PCI_INTX_SLOT_SHIFT = 11,
77 #define HVM_CALLBACK_PCI_INTX(slot, pin) \
78 (((uint64_t)HVM_CB_TYPE_PCI_INTX << HVM_CB_TYPE_SHIFT) \
79 | (((slot) & HVM_CB_PCI_INTX_SLOT_MASK) << HVM_CB_PCI_INTX_SLOT_SHIFT) \
80 | (((pin) & HVM_CB_PCI_INTX_INTPIN_MASK) << HVM_CB_PCI_INTX_INTPIN_SHIFT))
82 /** Format for specifying a direct IDT vector injection style callback. */
84 HVM_CB_VECTOR_VECTOR_MASK = 0xFFFFFFFF,
85 HVM_CB_VECTOR_VECTOR_SHIFT = 0
87 #define HVM_CALLBACK_VECTOR(vector) \
88 (((uint64_t)HVM_CB_TYPE_VECTOR << HVM_CB_TYPE_SHIFT) \
89 | (((vector) & HVM_CB_GSI_GSI_MASK) << HVM_CB_GSI_GSI_SHIFT))
91 void xen_hvm_set_callback(device_t);
92 void xen_hvm_suspend(void);
93 void xen_hvm_resume(void);
94 #endif /* __XEN_HVM_H__ */