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https://github.com/projectacrn/acrn-hypervisor.git
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c74b1941a0
Previously sanitize_multiboot_info() was called after init_debug_pre() because the debug message can only print after uart is initialized. On the other hand, multiboot cmdline need to be parsed before init_debug_pre() because the cmdline could override uart settings and make sure debug message printed successfully. This cause multiboot info was parsed in two stages. The patch revise the multiboot parse logic that split sanitize_multiboot_info() api and use init_acrn_multiboot_info() api for the early stage. The most of multiboot info will be initialized during this stage and no debug message need to be printed. After uart is initialized, the sanitize_multiboot_info() would do sanitize multiboot info and print needed debug messages. Tracked-On: #4885 Signed-off-by: Victor Sun <victor.sun@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
57 lines
1.1 KiB
C
57 lines
1.1 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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/* this is for direct guest_boot method */
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#include <types.h>
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#include <e820.h>
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#include <cpu.h>
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#include <boot.h>
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#include <direct_boot.h>
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#include <mmu.h>
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/* AP trampoline code buffer base address. */
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static uint64_t ap_trampoline_buf;
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static void init_direct_boot(void)
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{
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ap_trampoline_buf = e820_alloc_memory(CONFIG_LOW_RAM_SIZE, MEM_1M);
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}
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/* @post: return != 0UL */
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static uint64_t get_direct_boot_ap_trampoline(void)
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{
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return ap_trampoline_buf;
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}
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static const void* get_direct_boot_rsdp(void)
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{
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#ifdef CONFIG_MULTIBOOT2
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struct acrn_multiboot_info *mbi = get_multiboot_info();
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return mbi->mi_acpi_rsdp_va;
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#else
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return NULL;
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#endif
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}
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static void init_direct_boot_irq(void)
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{
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CPU_IRQ_ENABLE();
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}
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static struct vboot_operations direct_boot_ops = {
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.init = init_direct_boot,
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.get_ap_trampoline = get_direct_boot_ap_trampoline,
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.get_rsdp = get_direct_boot_rsdp,
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.init_irq = init_direct_boot_irq,
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};
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struct vboot_operations* get_direct_boot_ops(void)
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{
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return &direct_boot_ops;
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}
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