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https://github.com/projectacrn/acrn-hypervisor.git
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cee2f8b288
Currently when get_rsdp is called, the EFI depriv_boot env is not initialized. In such case it will fallback to the legacy mechanism of ACPI table. If the ACPI table based on legacy mechanism is not found, it will fail to get the ACPI table and then the system will hang. On the old platform it still can parse the ACPI table from legacy mechanism. In fact when EFI RSDP exists, the EFI RSDP is preferred instead of legacy ACPI RSDP. In order to avoid multiple calling of depriv_init_boot, the init_boot_operations is renamed and called after X2apic is enabled(early_init_lapic). Tracked-On: #3184 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
99 lines
2.3 KiB
C
99 lines
2.3 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 <multiboot.h>
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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 <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 4U
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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 multiboot_info *mbi;
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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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};
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mbi = (struct multiboot_info *)hpa2hva((uint64_t)boot_regs[1]);
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if (mbi == NULL) {
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panic("No multiboot info");
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} else {
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for (i = 0U; i < BOOTLOADER_NUM; i++) {
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if (strncmp(hpa2hva(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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/*
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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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#ifdef CONFIG_ACPI_PARSE_ENABLED
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acpi_fixup();
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#endif
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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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