hv:Replace vuart pointer with instance in structure vm

-- update 'vuart' field in 'struct vm' from pointer
   to instance
-- replace MACRO with inline function for vm_vuart,
   and move it to vm.h
-- change vuart_init to void type
-- rename struct vuart -->struct acrn_vuart

Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/arch/x86/guest/vm.h

@@ -133,7 +133,7 @@ struct vm {
 	struct vm_pm_info pm;	/* Reference to this VM's arch information */
 	struct vm_arch arch_vm;	/* Reference to this VM's arch information */
 	enum vm_state state;	/* VM state */
-	void *vuart;		/* Virtual UART */
+	struct acrn_vuart vuart;		/* Virtual UART */
 	enum vpic_wire_mode wire_mode;
 	struct iommu_domain *iommu;	/* iommu domain of this VM */
 	struct list_head list; /* list of VM */
@@ -243,6 +243,12 @@ static inline struct vcpu *get_primary_vcpu(struct vm *vm)
 	return NULL;
 }
 
+static inline struct acrn_vuart*
+vm_vuart(struct vm *vm)
+{
+	return (struct acrn_vuart *)&(vm->vuart);
+}
+
 static inline struct acrn_vpic *
 vm_pic(struct vm *vm)
 {

hypervisor/include/arch/x86/hv_arch.h

@@ -22,6 +22,7 @@
 #include <guest_pm.h>
 #include <host_pm.h>
 #include <vpic.h>
+#include <vuart.h>
 #include <vm.h>
 #include <cpuid.h>
 #include <mmu.h>