mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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da3d181f62
Initialize efi info of acrn mbi when boot from multiboot2 protocol, with this patch hypervisor could get host efi info and pass it to Linux zeropage, then make guest Linux possible to boot with efi environment; Tracked-On: #4419 Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* Copyright (C) 2020 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 BOOT_H_
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#define BOOT_H_
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#include <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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#include <e820.h>
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#include <zeropage.h>
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#define MAX_BOOTARGS_SIZE 2048U
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#define MAX_MODULE_COUNT 4U
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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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struct acrn_multiboot_info {
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uint32_t mi_flags; /* the flags is back-compatible with multiboot1 */
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char *mi_cmdline;
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char *mi_loader_name;
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uint32_t mi_mods_count;
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struct multiboot_module mi_mods[MAX_MODULE_COUNT];
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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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struct multiboot_mmap mi_mmap_entry[E820_MAX_ENTRIES];
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void *mi_acpi_rsdp;
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struct efi_info mi_efi_info;
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};
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/* boot_regs store the multiboot info magic and address */
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extern uint32_t boot_regs[2];
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extern char *efiloader_sig;
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static inline bool boot_from_multiboot1(void)
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{
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return ((boot_regs[0] == MULTIBOOT_INFO_MAGIC) && (boot_regs[1] != 0U));
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}
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#ifdef CONFIG_MULTIBOOT2
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static inline bool boot_from_multiboot2(void)
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{
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return ((boot_regs[0] == MULTIBOOT2_INFO_MAGIC) && (boot_regs[1] != 0U));
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}
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int32_t multiboot2_to_acrn_mbi(struct acrn_multiboot_info *mbi, void *mb2_info);
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#endif
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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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#endif /* BOOT_H_ */
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