HV: Add hypercall to set/clear IRQ line

- wraps ASSERT/DEASSERT IRQ line hypercalls.
    - remove 'intr_type' from set/clear IRQ line interface.
    - deprecate "IRQ_ASSERT", "IRQ_DEASSERT" & "IRQ_PULSE".
    - new adding hypercall will support "GSI_SET_HIGH"/
      "GSI_SET_LOW"/ "GSI_RAISING_PULSE"/ "GSI_FALLING_PULSE"
      operations

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/common/hypercall.h

@@ -184,6 +184,23 @@ int32_t hcall_deassert_irqline(struct vm *vm, uint16_t vmid, uint64_t param);
  */
 int32_t hcall_pulse_irqline(struct vm *vm, uint16_t vmid, uint64_t param);
 
+
+/**
+ * @brief set or clear IRQ line
+ *
+ * Set or clear a virtual IRQ line for a VM, which could be from ISA
+ * or IOAPIC, normally it triggers an edge IRQ.
+ * The function will return -1 if the target VM does not exist.
+ *
+ * @param vm Pointer to VM data structure
+ * @param vmid ID of the VM
+ * @irq_req: request command for IRQ set or clear
+ *
+ * @pre Pointer vm shall point to VM0
+ * @return 0 on success, non-zero on error.
+ */
+int32_t hcall_set_irqline(struct vm *vm, uint16_t vmid,
+				struct acrn_irqline_ops *ops);
 /**
  * @brief inject MSI interrupt
  *

hypervisor/include/common/irq.h

@@ -11,11 +11,6 @@
 #define IRQF_LEVEL	(1U << 1U)	/* 1: level trigger; 0: edge trigger */
 #define IRQF_PT		(1U << 2U)	/* 1: for passthrough dev */
 
-enum irq_mode {
-	IRQ_PULSE,
-	IRQ_ASSERT,
-	IRQ_DEASSERT,
-};
 
 typedef void (*irq_action_t)(uint32_t irq, void *priv_data);