mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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695e09a194
SBL would load multiboot modules to the maximum usable ram below 4GB, in this case the SOS kernel would be failed to load because no room for kernel in the range of end of modules and MEM_4G. So kernel must be relocated to the range of MEM_1M and start of modules, or other appropriate place according to modules layout. Tracked-On: #6162 Signed-off-by: Victor Sun <victor.sun@intel.com>
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
/*
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* Copyright (C) 2021 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <types.h>
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#include <errno.h>
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#include <asm/mmu.h>
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#include <boot.h>
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#include <rtl.h>
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#include <logmsg.h>
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static struct acrn_boot_info acrn_bi = { 0U };
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static char boot_protocol_name[16U] = { 0 };
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/**
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* @pre (p_start != NULL) && (p_end != NULL)
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*/
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void get_boot_mods_range(uint64_t *p_start, uint64_t *p_end)
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{
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uint32_t i;
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uint64_t start = ~0UL, end = 0UL;
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struct acrn_boot_info *abi = get_acrn_boot_info();
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for (i = 0; i < abi->mods_count; i++) {
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if (hva2hpa(abi->mods[i].start) < start) {
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start = hva2hpa(abi->mods[i].start);
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}
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if (hva2hpa(abi->mods[i].start + abi->mods[i].size) > end) {
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end = hva2hpa(abi->mods[i].start + abi->mods[i].size);
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}
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}
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*p_start = start;
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*p_end = end;
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}
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void init_acrn_boot_info(uint32_t *registers)
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{
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if (init_multiboot_info(registers) == 0) {
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strncpy_s(boot_protocol_name, 16U, "Multiboot", 16U);
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#ifdef CONFIG_MULTIBOOT2
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} else if (init_multiboot2_info(registers) == 0) {
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strncpy_s(boot_protocol_name, 16U, "Multiboot2", 16U);
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#endif
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}
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}
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int32_t sanitize_acrn_boot_info(struct acrn_boot_info *abi)
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{
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int32_t abi_status = 0;
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if (abi->mods_count == 0U) {
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pr_err("no boot module info found");
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abi_status = -EINVAL;
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}
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if (abi->mmap_entries == 0U) {
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pr_err("no boot mmap info found");
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abi_status = -EINVAL;
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}
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printf("%s environment detected.\n", boot_from_uefi(abi) ? "UEFI" : "Non-UEFI");
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if (abi->loader_name[0] == '\0') {
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pr_err("no bootloader name found!");
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abi_status = -EINVAL;
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} else {
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printf("%s Bootloader: %s\n", boot_protocol_name, abi->loader_name);
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}
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return abi_status;
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}
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/*
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* @post retval != NULL
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*/
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struct acrn_boot_info *get_acrn_boot_info(void)
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{
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return &acrn_bi;
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}
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