hv: support minimum set of TLFS

This patch implements the minimum set of TLFS functionality. It
includes 6 vCPUID leaves and 3 vMSRs.

- 0x40000001 Hypervisor Vendor-Neutral Interface Identification
- 0x40000002 Hypervisor System Identity
- 0x40000003 Hypervisor Feature Identification
- 0x40000004 Implementation Recommendations
- 0x40000005 Hypervisor Implementation Limits
- 0x40000006 Implementation Hardware Features

- HV_X64_MSR_GUEST_OS_ID Reporting the guest OS identity
- HV_X64_MSR_HYPERCALL Establishing the hypercall interface
- HV_X64_MSR_VP_INDEX Retrieve the vCPU ID from hypervisor

Tracked-On: #3832
Signed-off-by: wenwumax <wenwux.ma@intel.com>
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

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

@@ -26,6 +26,9 @@
 #include <cpu_caps.h>
 #include <e820.h>
 #include <vm_config.h>
+#ifdef CONFIG_HYPERV_ENABLED
+#include <hyperv.h>
+#endif
 
 struct vm_hw_info {
 	/* vcpu array of this VM */
@@ -100,6 +103,9 @@ struct vm_arch {
 	void *tmp_pg_array;	/* Page array for tmp guest paging struct */
 	struct acrn_vioapic vioapic;	/* Virtual IOAPIC base address */
 	struct acrn_vpic vpic;      /* Virtual PIC */
+#ifdef CONFIG_HYPERV_ENABLED
+	struct acrn_hyperv hyperv;
+#endif
 	enum vm_vlapic_state vlapic_state; /* Represents vLAPIC state across vCPUs*/
 
 	/* reference to virtual platform to come here (as needed) */