HV: re-arch boot component header

The patch re-arch boot component header files by:

- moving multiboot.h from include/arch/x86/ to boot/include/ and keep
  this header for multiboot1 protocol data struct only;

- moving multiboot related MACROs in cpu_primary.S to multiboot.h;

- creating an independent boot.h to store acrn specific boot information
  for other files' reference;

Tracked-On: #4419

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/arch/x86/boot/cpu_primary.S

@@ -21,9 +21,9 @@
  * the macros involved are changed.
  */
 
+#include <multiboot.h>
 /* MULTIBOOT HEADER */
-#define MULTIBOOT_HEADER_MAGIC 0x1badb002
-#define MULTIBOOT_HEADER_FLAGS 0x00000002 /*flags bit 1 : enable mem_*, mmap_**/
+#define MULTIBOOT_HEADER_FLAGS	MULTIBOOT_HEADER_NEED_MEMINFO
 
     .extern cpu_primary_save32
     .extern cpu_primary_save64

hypervisor/arch/x86/e820.c

@@ -9,7 +9,7 @@
 #include <page.h>
 #include <e820.h>
 #include <mmu.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <logmsg.h>
 
 /*

hypervisor/arch/x86/seed/seed.c

@@ -11,7 +11,7 @@
 #include <sprintf.h>
 #include <ept.h>
 #include <logmsg.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <crypto_api.h>
 #include <seed.h>
 #include "seed_abl.h"

hypervisor/boot/cmdline.c

@@ -6,11 +6,10 @@
 
 #include <types.h>
 #include <errno.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <pgtable.h>
 #include <dbg_cmd.h>
 #include <logmsg.h>
-#include <vboot.h>
 
 void parse_hv_cmdline(void)
 {

hypervisor/boot/guest/deprivilege_boot.c

@@ -15,7 +15,7 @@
 #include <lapic.h>
 #include <per_cpu.h>
 #include <guest/vm.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <deprivilege_boot.h>
 
 static struct depri_boot_context depri_boot_ctx;

hypervisor/boot/guest/vboot_info.c

@@ -10,7 +10,7 @@
 #include <per_cpu.h>
 #include <irq.h>
 #include <boot_context.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <pgtable.h>
 #include <zeropage.h>
 #include <seed.h>

hypervisor/boot/guest/vboot_wrapper.c

@@ -4,11 +4,11 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <multiboot.h>
 #include <vm.h>
 #include <types.h>
 #include <pgtable.h>
 #include <acpi.h>
+#include <boot.h>
 #include <vboot.h>
 #include <direct_boot.h>
 #include <deprivilege_boot.h>

hypervisor/boot/include/boot.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2020 Intel Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef BOOT_H_
+#define BOOT_H_
+
+#include <multiboot.h>
+
+#define MAX_BOOTARGS_SIZE		2048U
+
+/* boot_regs store the multiboot info magic and address */
+extern uint32_t boot_regs[2];
+
+#endif /* BOOT_H_ */

hypervisor/boot/include/multiboot.h

@@ -7,16 +7,20 @@
 #ifndef MULTIBOOT_H
 #define MULTIBOOT_H
 
-#include <types.h>
+#define	MULTIBOOT_HEADER_MAGIC		0x1BADB002
 #define	MULTIBOOT_INFO_MAGIC		0x2BADB002U
+
+/* MULTIBOOT HEADER FLAGS */
+#define	MULTIBOOT_HEADER_NEED_MEMINFO	0x00000002
+
+/* MULTIBOOT INFO FLAGS */
 #define	MULTIBOOT_INFO_HAS_CMDLINE	0x00000004U
 #define	MULTIBOOT_INFO_HAS_MODS		0x00000008U
 #define	MULTIBOOT_INFO_HAS_MMAP		0x00000040U
 #define	MULTIBOOT_INFO_HAS_DRIVES	0x00000080U
 #define	MULTIBOOT_INFO_HAS_LOADER_NAME	0x00000200U
 
-/* maximum lengt of the guest OS' command line parameter string */
-#define MAX_BOOTARGS_SIZE		2048U
+#ifndef ASSEMBLER
 
 struct multiboot_info {
 	uint32_t               mi_flags;
@@ -83,6 +87,6 @@ struct multiboot_module {
 	uint32_t	mm_reserved;
 };
 
-/* boot_regs store the multiboot header address */
-extern uint32_t boot_regs[2];
-#endif
+#endif	/* ASSEMBLER */
+
+#endif	/* MULTIBOOT_H */

hypervisor/include/arch/x86/vm_config.h

@@ -9,7 +9,7 @@
 
 #include <types.h>
 #include <pci.h>
-#include <multiboot.h>
+#include <boot.h>
 #include <acrn_common.h>
 #include <vm_configurations.h>
 #include <sgx.h>