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https://github.com/projectacrn/acrn-hypervisor.git
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8f9ec59a53
Move multiboot specific declarations from boot.h to multiboot.h. Tracked-On: #5661 Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef MULTIBOOT_H
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#define MULTIBOOT_H
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#ifdef CONFIG_MULTIBOOT2
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#include <multiboot2.h>
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#endif
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MULTIBOOT_INFO_MAGIC 0x2BADB002U
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/* MULTIBOOT HEADER FLAGS */
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#define MULTIBOOT_HEADER_NEED_MEMINFO 0x00000002
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/* MULTIBOOT INFO FLAGS */
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#define MULTIBOOT_INFO_HAS_CMDLINE 0x00000004U
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#define MULTIBOOT_INFO_HAS_MODS 0x00000008U
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#define MULTIBOOT_INFO_HAS_MMAP 0x00000040U
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#define MULTIBOOT_INFO_HAS_DRIVES 0x00000080U
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#define MULTIBOOT_INFO_HAS_LOADER_NAME 0x00000200U
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/* extended flags for acrn multiboot info from multiboot2 */
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#define MULTIBOOT_INFO_HAS_EFI_MMAP 0x00010000U
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#define MULTIBOOT_INFO_HAS_EFI64 0x00020000U
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#define MAX_BOOTARGS_SIZE 2048U
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/* The modules in multiboot are: Pre-launched VM: kernel/ramdisk/acpi; SOS VM: kernel/ramdisk */
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#define MAX_MODULE_NUM (3U * PRE_VM_NUM + 2U * SOS_VM_NUM)
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/* The vACPI module size is fixed to 1MB */
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#define ACPI_MODULE_SIZE MEM_1M
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#ifndef ASSEMBLER
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#include <e820.h>
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#include <zeropage.h>
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#include <vm_configurations.h>
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struct multiboot_info {
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uint32_t mi_flags;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MEMORY. */
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uint32_t mi_mem_lower;
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uint32_t mi_mem_upper;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_BOOT_DEVICE. */
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uint8_t mi_boot_device_part3;
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uint8_t mi_boot_device_part2;
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uint8_t mi_boot_device_part1;
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uint8_t mi_boot_device_drive;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CMDLINE. */
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uint32_t mi_cmdline;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MODS. */
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uint32_t mi_mods_count;
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uint32_t mi_mods_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_{AOUT,ELF}_SYMS. */
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uint32_t mi_elfshdr_num;
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uint32_t mi_elfshdr_size;
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uint32_t mi_elfshdr_addr;
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uint32_t mi_elfshdr_shndx;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MMAP. */
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uint32_t mi_mmap_length;
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uint32_t mi_mmap_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_DRIVES. */
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uint32_t mi_drives_length;
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uint32_t mi_drives_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */
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uint32_t unused_mi_config_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */
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uint32_t mi_loader_name;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */
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uint32_t unused_mi_apm_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */
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uint32_t unused_mi_vbe_control_info;
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uint32_t unused_mi_vbe_mode_info;
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uint32_t unused_mi_vbe_interface_seg;
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uint32_t unused_mi_vbe_interface_off;
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uint32_t unused_mi_vbe_interface_len;
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};
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struct multiboot_mmap {
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uint32_t size;
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uint64_t baseaddr;
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uint64_t length;
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uint32_t type;
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} __packed;
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struct multiboot_module {
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uint32_t mm_mod_start;
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uint32_t mm_mod_end;
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uint32_t mm_string;
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uint32_t mm_reserved;
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};
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struct acrn_multiboot_info {
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uint32_t mi_flags; /* the flags is back-compatible with multiboot1 */
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const char *mi_cmdline;
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const char *mi_loader_name;
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uint32_t mi_mods_count;
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const void *mi_mods_va;
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struct multiboot_module mi_mods[MAX_MODULE_NUM];
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uint32_t mi_drives_length;
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uint32_t mi_drives_addr;
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uint32_t mi_mmap_entries;
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const void *mi_mmap_va;
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struct multiboot_mmap mi_mmap_entry[E820_MAX_ENTRIES];
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const void *mi_acpi_rsdp_va;
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struct efi_info mi_efi_info;
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};
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/*
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* The extern declaration for acrn_mbi is for cmdline.c use only, other functions should use
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* get_multiboot_info() API to access struct acrn_mbi because it has explict @post condition
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*/
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extern struct acrn_multiboot_info acrn_mbi;
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void init_acrn_multiboot_info(void);
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struct acrn_multiboot_info *get_multiboot_info(void);
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int32_t sanitize_multiboot_info(void);
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void parse_hv_cmdline(void);
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const void* get_rsdp_ptr(void);
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#endif /* ASSEMBLER */
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#endif /* MULTIBOOT_H */
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