78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/*
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* Copyright (C) 2018-2022 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef BOOT_H
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#define BOOT_H
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#include <multiboot_std.h>
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#include <efi.h>
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#include <vm_configurations.h>
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/* TODO: MAX_MMAP_ENTRIES shall be config by config tool, and same as E820_MAX_ENTRIES */
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#define MAX_MMAP_ENTRIES 32U
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#define MAX_BOOTARGS_SIZE 2048U
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#define MAX_LOADER_NAME_SIZE 32U
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#define MAX_PROTOCOL_NAME_SIZE 16U
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#define MAX_MOD_STRING_SIZE 2048U
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/* The modules in multiboot are: Pre-launched VM: kernel/ramdisk/acpi; Service VM: kernel/ramdisk */
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#define MAX_MODULE_NUM (3U * PRE_VM_NUM + 2U * SERVICE_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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struct abi_module {
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void *start; /* HVA */
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uint32_t size;
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const char string[MAX_MOD_STRING_SIZE];
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};
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/* ABI memory map types, compatible to Multiboot/Multiboot2/E820; */
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#define MMAP_TYPE_RAM 1U
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#define MMAP_TYPE_RESERVED 2U
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#define MMAP_TYPE_ACPI_RECLAIM 3U
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#define MMAP_TYPE_ACPI_NVS 4U
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#define MMAP_TYPE_UNUSABLE 5U
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struct abi_mmap {
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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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};
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struct acrn_boot_info {
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char protocol_name[MAX_PROTOCOL_NAME_SIZE];
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const char cmdline[MAX_BOOTARGS_SIZE];
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const char loader_name[MAX_LOADER_NAME_SIZE];
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uint32_t mods_count;
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struct abi_module mods[MAX_MODULE_NUM];
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uint32_t mmap_entries;
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struct abi_mmap mmap_entry[MAX_MMAP_ENTRIES];
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const void *acpi_rsdp_va;
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struct efi_info uefi_info;
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};
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static inline bool boot_from_uefi(struct acrn_boot_info *abi)
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{
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return !((abi->uefi_info.systab == 0U) && (abi->uefi_info.systab_hi == 0U));
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}
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void get_boot_mods_range(uint64_t *p_start, uint64_t *p_end);
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int32_t init_multiboot_info(uint32_t *registers);
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void init_acrn_boot_info(uint32_t *registers);
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int32_t sanitize_acrn_boot_info(struct acrn_boot_info *abi);
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struct acrn_boot_info *get_acrn_boot_info(void);
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struct abi_module *get_mod_by_tag(const struct acrn_boot_info *abi, const char *tag);
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#endif /* BOOT_H */
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