diff --git a/hypervisor/Makefile b/hypervisor/Makefile
index 0ea9a59f5..cdc45a0b5 100644
--- a/hypervisor/Makefile
+++ b/hypervisor/Makefile
@@ -77,6 +77,7 @@ INCLUDE_PATH += include/common
 INCLUDE_PATH += bsp/include
 INCLUDE_PATH += bsp/$(PLATFORM)/include/bsp
 INCLUDE_PATH += boot/include
+INCLUDE_PATH += $(HV_OBJDIR)/include
 
 CC ?= gcc
 AS ?= as
@@ -180,7 +181,7 @@ DISTCLEAN_OBJS := $(shell find $(BASEDIR) -name '*.o')
 VERSION := bsp/$(PLATFORM)/include/bsp/version.h
 
 .PHONY: all
-all: $(BUILD_DEPS) $(VERSION) $(HV_OBJDIR)/$(HV_FILE).32.out $(HV_OBJDIR)/$(HV_FILE).bin
+all: $(BUILD_DEPS) $(VERSION) oldconfig $(HV_OBJDIR)/$(HV_FILE).32.out $(HV_OBJDIR)/$(HV_FILE).bin
 	rm -f $(VERSION)
 
 ifeq ($(PLATFORM), uefi)
@@ -247,11 +248,10 @@ $(VERSION):
 	echo "#define HV_BUILD_TIME "\""$$TIME"\""" >> $(VERSION);\
 	echo "#define HV_BUILD_USER "\""$(USER)"\""" >> $(VERSION)
 
-$(HV_OBJDIR)/%.o: %.c
+$(HV_OBJDIR)/%.o: %.c $(HV_OBJDIR)/$(HV_CONFIG_H)
 	[ ! -e $@ ] && mkdir -p $(dir $@); \
 	$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@
 
-$(HV_OBJDIR)/%.o: %.S
+$(HV_OBJDIR)/%.o: %.S $(HV_OBJDIR)/$(HV_CONFIG_H)
 	[ ! -e $@ ] && mkdir -p $(dir $@); \
 	$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. $(ASFLAGS) $(ARCH_ASFLAGS) -c $< -o $@
-
diff --git a/hypervisor/arch/x86/cpu.c b/hypervisor/arch/x86/cpu.c
index 001c3bab6..d61d439ae 100644
--- a/hypervisor/arch/x86/cpu.c
+++ b/hypervisor/arch/x86/cpu.c
@@ -424,7 +424,7 @@ void bsp_boot_init(void)
 	load_gdtr_and_tr();
 
 	/* Switch to run-time stack */
-	CPU_SP_WRITE(&get_cpu_var(stack)[STACK_SIZE - 1]);
+	CPU_SP_WRITE(&get_cpu_var(stack)[CONFIG_STACK_SIZE - 1]);
 
 #ifdef STACK_PROTECTOR
 	set_fs_base();
@@ -456,8 +456,8 @@ void bsp_boot_init(void)
 	calibrate_tsc();
 
 	/* Enable logging */
-	init_logmsg(LOG_BUF_SIZE,
-		       LOG_DESTINATION);
+	init_logmsg(CONFIG_LOG_BUF_SIZE,
+		       CONFIG_LOG_DESTINATION);
 
 	if (HV_RC_VERSION)
 		pr_acrnlog("HV version %d.%d-rc%d-%s-%s %s build by %s, start time %lluus",
@@ -556,7 +556,7 @@ void cpu_secondary_init(void)
 	__bitmap_set(get_cpu_id(), &pcpu_active_bitmap);
 
 	/* Switch to run-time stack */
-	CPU_SP_WRITE(&get_cpu_var(stack)[STACK_SIZE - 1]);
+	CPU_SP_WRITE(&get_cpu_var(stack)[CONFIG_STACK_SIZE - 1]);
 
 #ifdef STACK_PROTECTOR
 	set_fs_base();
@@ -654,7 +654,7 @@ void start_cpus()
 	/* Wait until global count is equal to expected CPU up count or
 	 * configured time-out has expired
 	 */
-	timeout = CPU_UP_TIMEOUT * 1000;
+	timeout = CONFIG_CPU_UP_TIMEOUT * 1000;
 	while ((up_count != expected_up) && (timeout != 0)) {
 		/* Delay 10us */
 		udelay(10);
@@ -679,7 +679,7 @@ void stop_cpus()
 	int i;
 	uint32_t timeout, expected_up;
 
-	timeout = CPU_UP_TIMEOUT * 1000;
+	timeout = CONFIG_CPU_UP_TIMEOUT * 1000;
 	for (i = 0; i < phy_cpu_num; i++) {
 		if (get_cpu_id() == i)	/* avoid offline itself */
 			continue;
diff --git a/hypervisor/arch/x86/gdt.c b/hypervisor/arch/x86/gdt.c
index 72c667218..eaad23904 100644
--- a/hypervisor/arch/x86/gdt.c
+++ b/hypervisor/arch/x86/gdt.c
@@ -34,9 +34,9 @@ void load_gdtr_and_tr(void)
 	/* ring 0 data sel descriptor */
 	gdt->host_gdt_data_descriptor.value = 0x00cf93000000ffff;
 
-	tss->ist1 = (uint64_t)get_cpu_var(mc_stack) + STACK_SIZE;
-	tss->ist2 = (uint64_t)get_cpu_var(df_stack) + STACK_SIZE;
-	tss->ist3 = (uint64_t)get_cpu_var(sf_stack) + STACK_SIZE;
+	tss->ist1 = (uint64_t)get_cpu_var(mc_stack) + CONFIG_STACK_SIZE;
+	tss->ist2 = (uint64_t)get_cpu_var(df_stack) + CONFIG_STACK_SIZE;
+	tss->ist3 = (uint64_t)get_cpu_var(sf_stack) + CONFIG_STACK_SIZE;
 	tss->ist4 = 0L;
 
 	/* tss descriptor */
diff --git a/hypervisor/arch/x86/ioapic.c b/hypervisor/arch/x86/ioapic.c
index 9d4ae9feb..18ea5b0b9 100644
--- a/hypervisor/arch/x86/ioapic.c
+++ b/hypervisor/arch/x86/ioapic.c
@@ -304,7 +304,7 @@ void setup_ioapic_irq(void)
 
 	spinlock_init(&ioapic_lock);
 
-	for (ioapic_id = 0, gsi = 0; ioapic_id < NR_IOAPICS; ioapic_id++) {
+	for (ioapic_id = 0, gsi = 0; ioapic_id < CONFIG_NR_IOAPICS; ioapic_id++) {
 		int pin;
 		int max_pins;
 		int version;
diff --git a/hypervisor/boot/dmar_parse.c b/hypervisor/boot/dmar_parse.c
index a7b4b4919..4767dce7e 100644
--- a/hypervisor/boot/dmar_parse.c
+++ b/hypervisor/boot/dmar_parse.c
@@ -3,7 +3,7 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#include "bsp_cfg.h"
+
 #ifdef CONFIG_DMAR_PARSE_ENABLED
 #include <hypervisor.h>
 #include "vtd.h"
diff --git a/hypervisor/bsp/ld/link_ram.ld.in b/hypervisor/bsp/ld/link_ram.ld.in
index 5c58a5fd9..83348f447 100644
--- a/hypervisor/bsp/ld/link_ram.ld.in
+++ b/hypervisor/bsp/ld/link_ram.ld.in
@@ -1,4 +1,4 @@
-#include "bsp_cfg.h"
+#include "config.h"
 
 ENTRY(cpu_primary_start_32)
 
@@ -83,4 +83,3 @@ SECTIONS
     _ld_ram_size = LENGTH(ram) ;
     _ld_ram_end = _ld_ram_size + _ld_ram_start ;
 }
-
diff --git a/hypervisor/bsp/uefi/efi/Makefile b/hypervisor/bsp/uefi/efi/Makefile
index abf149aae..ac74f6a95 100644
--- a/hypervisor/bsp/uefi/efi/Makefile
+++ b/hypervisor/bsp/uefi/efi/Makefile
@@ -36,7 +36,7 @@ HV_FILE:=acrn
 EFI_OBJDIR:=$(HV_OBJDIR)/bsp/uefi/efi
 C_SRCS = boot.c pe.c malloc.c
 ACRN_OBJS := $(patsubst %.c,$(EFI_OBJDIR)/%.o,$(C_SRCS))
-INCLUDE_PATH += ../include/bsp/
+INCLUDE_PATH += $(HV_OBJDIR)/include
 
 OBJCOPY=objcopy
 
@@ -68,7 +68,8 @@ endif
 
 CFLAGS=-I. -I.. -I$(INCDIR)/efi -I$(INCDIR)/efi/$(ARCH) \
 		-DEFI_FUNCTION_WRAPPER -fPIC -fshort-wchar -ffreestanding \
-		-Wall -I../fs/ -D$(ARCH) -O2
+		-Wall -I../fs/ -D$(ARCH) -O2 \
+		-include config.h
 
 CFLAGS += -mno-mmx -mno-sse -mno-sse2 -mno-80387 -mno-fp-ret-in-387
 
@@ -107,11 +108,11 @@ install-conf: $(CONF_FILE)
 clean:
 	rm -f $(BOOT) $(HV_OBJDIR)/$(HV_FILE).efi $(EFI_OBJDIR)/boot.so $(ACRN_OBJS) $(FS)
 
-$(EFI_OBJDIR)/%.o:%.S
+$(EFI_OBJDIR)/%.o:%.S $(HV_OBJDIR)/$(HV_CONFIG_H)
 	[ ! -e $@ ] && mkdir -p $(dir $@); \
 	$(CC) $(CFLAGS)   -c -o $@ $<
 
-$(EFI_OBJDIR)/%.o: %.c
+$(EFI_OBJDIR)/%.o: %.c $(HV_OBJDIR)/$(HV_CONFIG_H)
 	[ ! -e $@ ] && mkdir -p $(dir $@); \
 	$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@
 
diff --git a/hypervisor/bsp/uefi/efi/boot.c b/hypervisor/bsp/uefi/efi/boot.c
index ba5e26cc8..e4ffe3f3c 100644
--- a/hypervisor/bsp/uefi/efi/boot.c
+++ b/hypervisor/bsp/uefi/efi/boot.c
@@ -380,7 +380,7 @@ efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *_table)
 		/*
 		 * If we reach this point, it means we did not receive a specific
 		 * bootloader name to be used. Fall back to the default bootloader
-		 * as specified in bsp_cfg.h
+		 * as specified in config.h
 		 */
 		bootloader_name = ch8_2_ch16(CONFIG_UEFI_OS_LOADER_NAME);
 	}
@@ -454,4 +454,3 @@ failed:
 
 	return exit(image, err, ERROR_STRING_LENGTH, error_buf);
 }
-
diff --git a/hypervisor/bsp/uefi/efi/boot.h b/hypervisor/bsp/uefi/efi/boot.h
index 2968a4c84..abd307a59 100644
--- a/hypervisor/bsp/uefi/efi/boot.h
+++ b/hypervisor/bsp/uefi/efi/boot.h
@@ -34,7 +34,6 @@
 #ifndef __ACRNBOOT_H__
 #define __ACRNBOOT_H__
 
-#include <bsp_cfg.h>
 #include "multiboot.h"
 
 #define E820_RAM		1
@@ -182,4 +181,3 @@ msr_read(uint32_t reg_num)
 }
 
 #endif
-
diff --git a/hypervisor/common/schedule.c b/hypervisor/common/schedule.c
index eabeef27c..9cdbd008e 100644
--- a/hypervisor/common/schedule.c
+++ b/hypervisor/common/schedule.c
@@ -169,7 +169,7 @@ static void switch_to(struct vcpu *curr)
 	 * reset stack pointer here. Otherwise, schedule
 	 * is recursive call and stack will overflow finally.
 	 */
-	uint64_t cur_sp = (uint64_t)&get_cpu_var(stack)[STACK_SIZE];
+	uint64_t cur_sp = (uint64_t)&get_cpu_var(stack)[CONFIG_STACK_SIZE];
 
 	if (curr == NULL) {
 		asm volatile ("movq %1, %%rsp\n"
diff --git a/hypervisor/debug/dump.c b/hypervisor/debug/dump.c
index 4f9f91cb6..7da5c19d7 100644
--- a/hypervisor/debug/dump.c
+++ b/hypervisor/debug/dump.c
@@ -238,7 +238,7 @@ static void show_host_call_trace(uint64_t rsp, uint64_t rbp, uint32_t cpu_id)
 
 	printf("Host Call Trace:\r\n");
 	if (rsp >
-	(uint64_t)&per_cpu(stack, cpu_id)[STACK_SIZE - 1]
+	(uint64_t)&per_cpu(stack, cpu_id)[CONFIG_STACK_SIZE - 1]
 		|| rsp < (uint64_t)&per_cpu(stack, cpu_id)[0]) {
 		return;
 	}
@@ -257,7 +257,7 @@ static void show_host_call_trace(uint64_t rsp, uint64_t rbp, uint32_t cpu_id)
 	 *  if the address is invalid, it will cause hv page fault
 	 *  then halt system */
 	while ((rbp <=
-	(uint64_t)&per_cpu(stack, cpu_id)[STACK_SIZE - 1])
+	(uint64_t)&per_cpu(stack, cpu_id)[CONFIG_STACK_SIZE - 1])
 		&& (rbp >= (uint64_t)&per_cpu(stack, cpu_id)[0])
 		&& (cb_hierarchy++ < CALL_TRACE_HIERARCHY_MAX)) {
 		printf("----> 0x%016llx\r\n",
diff --git a/hypervisor/debug/shell_internal.c b/hypervisor/debug/shell_internal.c
index 0c366829e..6cf3ffd8c 100644
--- a/hypervisor/debug/shell_internal.c
+++ b/hypervisor/debug/shell_internal.c
@@ -30,11 +30,11 @@
 /* The initial log level*/
 uint32_t console_loglevel;
 uint32_t mem_loglevel;
-#ifdef CONSOLE_LOGLEVEL_DEFAULT
-uint32_t console_loglevel = CONSOLE_LOGLEVEL_DEFAULT;
+#ifdef CONFIG_CONSOLE_LOGLEVEL_DEFAULT
+uint32_t console_loglevel = CONFIG_CONSOLE_LOGLEVEL_DEFAULT;
 #endif
-#ifdef MEM_LOGLEVEL_DEFAULT
-uint32_t mem_loglevel = MEM_LOGLEVEL_DEFAULT;
+#ifdef CONFIG_MEM_LOGLEVEL_DEFAULT
+uint32_t mem_loglevel = CONFIG_MEM_LOGLEVEL_DEFAULT;
 #endif
 
 static int string_to_argv(char *argv_str, void *p_argv_mem,
diff --git a/hypervisor/include/arch/x86/ioapic.h b/hypervisor/include/arch/x86/ioapic.h
index 4d738090e..aa2990234 100644
--- a/hypervisor/include/arch/x86/ioapic.h
+++ b/hypervisor/include/arch/x86/ioapic.h
@@ -13,7 +13,7 @@
 #define IOAPIC_MAX_LINES	120
 #define NR_LEGACY_IRQ		16
 #define NR_LEGACY_PIN	NR_LEGACY_IRQ
-#define NR_MAX_GSI	(NR_IOAPICS*IOAPIC_MAX_LINES)
+#define NR_MAX_GSI	(CONFIG_NR_IOAPICS*IOAPIC_MAX_LINES)
 
 #define GSI_MASK_IRQ(irq) irq_gsi_mask_unmask((irq), true)
 #define GSI_UNMASK_IRQ(irq) irq_gsi_mask_unmask((irq), false)
diff --git a/hypervisor/include/arch/x86/per_cpu.h b/hypervisor/include/arch/x86/per_cpu.h
index f6a88746a..44d25fa76 100644
--- a/hypervisor/include/arch/x86/per_cpu.h
+++ b/hypervisor/include/arch/x86/per_cpu.h
@@ -32,10 +32,10 @@ struct per_cpu_region {
 	struct host_gdt gdt;
 	struct tss_64 tss;
 	int state;
-	uint8_t mc_stack[STACK_SIZE] __aligned(16);
-	uint8_t df_stack[STACK_SIZE] __aligned(16);
-	uint8_t sf_stack[STACK_SIZE] __aligned(16);
-	uint8_t stack[STACK_SIZE] __aligned(16);
+	uint8_t mc_stack[CONFIG_STACK_SIZE] __aligned(16);
+	uint8_t df_stack[CONFIG_STACK_SIZE] __aligned(16);
+	uint8_t sf_stack[CONFIG_STACK_SIZE] __aligned(16);
+	uint8_t stack[CONFIG_STACK_SIZE] __aligned(16);
 	char logbuf[LOG_MESSAGE_MAX_SIZE];
 	uint8_t lapic_id;
 } __aligned(CPU_PAGE_SIZE); //per_cpu_region size aligned with CPU_PAGE_SIZE
diff --git a/hypervisor/include/hypervisor.h b/hypervisor/include/hypervisor.h
index fde338c57..8e3d042f8 100644
--- a/hypervisor/include/hypervisor.h
+++ b/hypervisor/include/hypervisor.h
@@ -12,8 +12,7 @@
  *
  *   DESCRIPTION
  *
- *       This file includes config header file "bsp_cfg.h" and other
- *       hypervisor used header files.
+ *       This file includes hypervisor used header files.
  *       It should be included in all the source files.
  *
  *
@@ -23,7 +22,6 @@
 
 /* Include config header file containing config options */
 #include <types.h>
-#include "bsp_cfg.h"
 #include "acrn_common.h"
 #include <acrn_hv_defs.h>
 #include <hv_lib.h>
diff --git a/hypervisor/lib/memory.c b/hypervisor/lib/memory.c
index e095c5a70..92df2461a 100644
--- a/hypervisor/lib/memory.c
+++ b/hypervisor/lib/memory.c
@@ -6,14 +6,15 @@
 #include <hypervisor.h>
 
 /************************************************************************/
-/*  Memory pool declaration (block size = MALLOC_ALIGN)   */
+/*  Memory pool declaration (block size = CONFIG_MALLOC_ALIGN)   */
 /************************************************************************/
 #define __bss_noinit __attribute__((__section__(".bss_noinit")))
 
-static uint8_t __bss_noinit Malloc_Heap[HEAP_SIZE] __aligned(MALLOC_ALIGN);
+static uint8_t __bss_noinit
+Malloc_Heap[CONFIG_HEAP_SIZE] __aligned(CONFIG_MALLOC_ALIGN);
 
-#define MALLOC_HEAP_BUFF_SIZE      MALLOC_ALIGN
-#define MALLOC_HEAP_TOTAL_BUFF     (HEAP_SIZE/MALLOC_HEAP_BUFF_SIZE)
+#define MALLOC_HEAP_BUFF_SIZE      CONFIG_MALLOC_ALIGN
+#define MALLOC_HEAP_TOTAL_BUFF     (CONFIG_HEAP_SIZE/MALLOC_HEAP_BUFF_SIZE)
 #define MALLOC_HEAP_BITMAP_SIZE \
                 INT_DIV_ROUNDUP(MALLOC_HEAP_TOTAL_BUFF, BITMAP_WORD_SIZE)
 static uint32_t Malloc_Heap_Bitmap[MALLOC_HEAP_BITMAP_SIZE];
@@ -22,7 +23,7 @@ static uint32_t Malloc_Heap_Contiguity_Bitmap[MALLOC_HEAP_BITMAP_SIZE];
 struct mem_pool Memory_Pool = {
         .start_addr = Malloc_Heap,
         .spinlock = {.head = 0, .tail = 0},
-        .size = HEAP_SIZE,
+        .size = CONFIG_HEAP_SIZE,
         .buff_size = MALLOC_HEAP_BUFF_SIZE,
         .total_buffs = MALLOC_HEAP_TOTAL_BUFF,
         .bmp_size = MALLOC_HEAP_BITMAP_SIZE,
@@ -34,10 +35,10 @@ struct mem_pool Memory_Pool = {
 /*        Memory pool declaration (block size = CPU_PAGE_SIZE)          */
 /************************************************************************/
 static uint8_t __bss_noinit
-Paging_Heap[NUM_ALLOC_PAGES][CPU_PAGE_SIZE] __aligned(CPU_PAGE_SIZE);
+Paging_Heap[CONFIG_NUM_ALLOC_PAGES][CPU_PAGE_SIZE] __aligned(CPU_PAGE_SIZE);
 
 #define PAGING_HEAP_BUFF_SIZE      CPU_PAGE_SIZE
-#define PAGING_HEAP_TOTAL_BUFF     NUM_ALLOC_PAGES
+#define PAGING_HEAP_TOTAL_BUFF     CONFIG_NUM_ALLOC_PAGES
 #define PAGING_HEAP_BITMAP_SIZE \
                 INT_DIV_ROUNDUP(PAGING_HEAP_TOTAL_BUFF, BITMAP_WORD_SIZE)
 static uint32_t Paging_Heap_Bitmap[PAGING_HEAP_BITMAP_SIZE];
@@ -46,7 +47,7 @@ static uint32_t Paging_Heap_Contiguity_Bitmap[MALLOC_HEAP_BITMAP_SIZE];
 struct mem_pool Paging_Memory_Pool = {
         .start_addr = Paging_Heap,
         .spinlock = {.head = 0, .tail = 0},
-        .size = NUM_ALLOC_PAGES * CPU_PAGE_SIZE,
+        .size = CONFIG_NUM_ALLOC_PAGES * CPU_PAGE_SIZE,
         .buff_size = PAGING_HEAP_BUFF_SIZE,
         .total_buffs = PAGING_HEAP_TOTAL_BUFF,
         .bmp_size = PAGING_HEAP_BITMAP_SIZE,
diff --git a/hypervisor/scripts/kconfig/kconfig.mk b/hypervisor/scripts/kconfig/kconfig.mk
index 392db2e39..69a619686 100644
--- a/hypervisor/scripts/kconfig/kconfig.mk
+++ b/hypervisor/scripts/kconfig/kconfig.mk
@@ -46,3 +46,5 @@ minimalconfig: $(HV_OBJDIR)/$(HV_CONFIG)
 	@python $(KCONFIG_DIR)/minimalconfig.py Kconfig $(HV_OBJDIR)/$(HV_CONFIG) $(HV_OBJDIR)/$(HV_DEFCONFIG)
 
 -include $(HV_OBJDIR)/$(HV_CONFIG_MK)
+
+CFLAGS += -include $(HV_OBJDIR)/$(HV_CONFIG_H)