89 lines
1.8 KiB
C
89 lines
1.8 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 <firmware.h>
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#include <firmware_sbl.h>
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#include <firmware_uefi.h>
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#include "platform_acpi_info.h"
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static struct firmware_operations *firmware_ops;
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static bool is_firmware_sbl(void)
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{
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bool ret = false;
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struct multiboot_info *mbi = NULL;
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size_t i;
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const char *sbl_candidates[] = {
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"Slim BootLoader",
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"Intel IOTG/TSD ABL",
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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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if ((mbi->mi_flags & MULTIBOOT_INFO_HAS_LOADER_NAME) != 0U) {
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for (i = 0; i < sizeof(sbl_candidates); i++) {
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if (strcmp(hpa2hva(mbi->mi_loader_name), sbl_candidates[i]) == 0) {
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ret = true;
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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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return ret;
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}
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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_firmware_operations(void)
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{
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if (is_firmware_sbl()) {
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firmware_ops = sbl_get_firmware_operations();
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} else {
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firmware_ops = uefi_get_firmware_operations();
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}
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}
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/* @pre: firmware_ops->init != NULL */
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void init_firmware(void)
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{
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#ifndef CONFIG_CONSTANT_ACPI
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acpi_fixup();
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#endif
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firmware_ops->init();
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}
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/* @pre: firmware_ops->get_ap_trampoline != NULL */
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uint64_t firmware_get_ap_trampoline(void)
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{
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return firmware_ops->get_ap_trampoline();
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}
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/* @pre: firmware_ops->get_rsdp != NULL */
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void *firmware_get_rsdp(void)
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{
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return firmware_ops->get_rsdp();
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}
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/* @pre: firmware_ops->init_irq != NULL */
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void firmware_init_irq(void)
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{
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return firmware_ops->init_irq();
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}
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/* @pre: firmware_ops->init_vm_boot_info != NULL */
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int32_t firmware_init_vm_boot_info(struct acrn_vm *vm)
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{
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return firmware_ops->init_vm_boot_info(vm);
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}
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