mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-29 12:14:13 +00:00
19ffaa50dc
Initialize and sanitize a acrn specific multiboot info struct with current supported multiboot1 in very early boot stage, which would bring below benifits: - don't need to do hpa2hva convention every time when refering boot_regs; - panic early if failed to sanitize multiboot info, so that don't need to check multiboot info pointer/flags and panic in later boot process; - keep most code unchanged when introduce multiboot2 support in future; Tracked-On: #4419 Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
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* Copyright (C) 2019 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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#include <vm.h>
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#include <types.h>
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#include <pgtable.h>
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#include <acpi.h>
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#include <boot.h>
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#include <vboot.h>
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#include <direct_boot.h>
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#include <deprivilege_boot.h>
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#include <logmsg.h>
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#define BOOTLOADER_NUM 5U
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#define BOOTLOADER_NAME_SIZE 20U
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struct vboot_bootloader_map {
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const char bootloader_name[BOOTLOADER_NAME_SIZE];
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enum vboot_mode mode;
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};
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static struct vboot_operations *vboot_ops;
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static enum vboot_mode sos_boot_mode;
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/**
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* @pre: this function is called during detect mode which is very early stage,
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* other exported interfaces should not be called beforehand.
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*/
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void init_vboot(void)
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{
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struct acrn_multiboot_info *mbi = get_multiboot_info();
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uint32_t i;
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const struct vboot_bootloader_map vboot_bootloader_maps[BOOTLOADER_NUM] = {
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{"Slim BootLoader", DIRECT_BOOT_MODE},
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{"Intel IOTG/TSD ABL", DIRECT_BOOT_MODE},
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{"ACRN UEFI loader", DEPRI_BOOT_MODE},
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{"GRUB", DIRECT_BOOT_MODE},
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{"PXELINUX", DIRECT_BOOT_MODE},
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};
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for (i = 0U; i < BOOTLOADER_NUM; i++) {
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if (strncmp(mbi->mi_loader_name, vboot_bootloader_maps[i].bootloader_name,
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strnlen_s(vboot_bootloader_maps[i].bootloader_name, BOOTLOADER_NAME_SIZE)) == 0) {
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/* Only support two vboot mode */
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if (vboot_bootloader_maps[i].mode == DEPRI_BOOT_MODE) {
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vboot_ops = get_deprivilege_boot_ops();
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sos_boot_mode = DEPRI_BOOT_MODE;
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} else {
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vboot_ops = get_direct_boot_ops();
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sos_boot_mode = DIRECT_BOOT_MODE;
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}
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break;
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}
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}
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/*
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* vboot_ops is mandatory and it will be initialized correctly.
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* The vboot_ops->init is called to assure that the boot env is
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* initialized before calling other vboot_ops interface.
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*/
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vboot_ops->init();
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}
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/* @pre: vboot_ops != NULL */
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enum vboot_mode get_sos_boot_mode(void)
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{
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return sos_boot_mode;
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}
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/* @pre: vboot_ops->get_ap_trampoline != NULL */
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uint64_t get_ap_trampoline_buf(void)
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{
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return vboot_ops->get_ap_trampoline();
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}
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/* @pre: vboot_ops->get_rsdp != NULL */
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void *get_rsdp_ptr(void)
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{
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return vboot_ops->get_rsdp();
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}
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/* @pre: vboot_ops->init_irq != NULL */
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void init_vboot_irq(void)
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{
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return vboot_ops->init_irq();
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}
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