hv: remove unused MACROs

MISRA-C states that redundant macros reduce the maintainability of code.

In some cases, we would like to keep the current unused macros for code
completeness, such as cpu registers. These macros might be used later.

This patch removes some unused macros that is not critical for code
completeness.

v1 -> v2:
 * Keep TRUSTY_VERSION in trusty.c.
   Yadong will cook another patch which will utilize TRUSTY_VERSION.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/arch/x86/gdt.h

@@ -66,11 +66,6 @@
 	(HOST_GDT_RING0_CPU_TSS_SEL +					\
 		(HOST_GDT_RING0_TSS_SELECTORS * X64_TSS_DESC_SIZE))
 
-/* Defined position of Interrupt Stack Tables */
-#define MACHINE_CHECK_IST   (0x1)
-#define DOUBLE_FAULT_IST    (0x2)
-#define STACK_FAULT_IST     (0x3)
-
 #ifndef ASSEMBLER
 
 #include <types.h>

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

@@ -9,9 +9,6 @@
 
 #define	ACRN_VCPU_MMIO_COMPLETE		(0U)
 
-/* Size of various elements within the VCPU structure */
-#define REG_SIZE                            8
-
 /* Number of GPRs saved / restored for guest in VCPU structure */
 #define NUM_GPRS                            16U
 #define GUEST_STATE_AREA_SIZE               512

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

@@ -18,7 +18,6 @@ enum vm_privilege_level {
 	VM_PRIVILEGE_LEVEL_LOW
 };
 
-#define	MAX_VM_NAME_LEN		16
 #define INVALID_VM_ID 0xffffU
 
 struct vm_hw_info {

hypervisor/include/arch/x86/lapic.h

@@ -7,8 +7,6 @@
 #ifndef INTR_LAPIC_H
 #define INTR_LAPIC_H
 
-#define DEBUG_LAPIC 0
-
 /* intr_lapic_icr_delivery_mode */
 #define INTR_LAPIC_ICR_FIXED    0x0U
 #define INTR_LAPIC_ICR_LP          0x1U

hypervisor/include/arch/x86/trusty.h

@@ -14,7 +14,6 @@
 
 /* Trusty EPT rebase gpa: 511G */
 #define TRUSTY_EPT_REBASE_GPA (511UL * 1024UL * 1024UL * 1024UL)
-#define TRUSTY_MEMORY_SIZE        0x01000000
 
 #define NON_TRUSTY_PDPT_ENTRIES         511U