acrn-hypervisor/hypervisor/boot/multiboot/multiboot_priv.h
Ziheng Li eb8bcb06b3 Update copyright year range in code headers
Modified the copyright year range in code, and corrected "int32_tel"
into "Intel" in two "hypervisor/include/debug/profiling.h" and
"hypervisor/include/debug/profiling_internal.h".

Tracked-On: #7559
Signed-off-by: Ziheng Li <ziheng.li@intel.com>
2022-07-15 11:48:35 +08:00

37 lines
1.0 KiB
C

/*
* Copyright (C) 2020-2022 Intel Corporation.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef MULTIBOOT_PRIV_H
#define MULTIBOOT_PRIV_H
#ifdef CONFIG_MULTIBOOT2
/*
* @post boot_regs[1] stores the address pointer that point to a valid multiboot2 info
*/
static inline bool boot_from_multiboot2(uint32_t magic)
{
/*
* Multiboot spec states that the Multiboot information structure may be placed
* anywhere in memory by the boot loader.
*
* Seems both SBL and GRUB won't place multiboot1 MBI structure at 0 address,
* but GRUB could place Multiboot2 MBI structure at 0 address until commit
* 0f3f5b7c13fa9b67 ("multiboot2: Set min address for mbi allocation to 0x1000")
* which dates on Dec 26 2019.
*/
return (magic == MULTIBOOT2_INFO_MAGIC);
}
int32_t multiboot2_to_acrn_bi(struct acrn_boot_info *abi, void *mb2_info);
#endif
static inline bool boot_from_multiboot(uint32_t magic, uint32_t info)
{
return ((magic == MULTIBOOT_INFO_MAGIC) && (info != 0U));
}
#endif /* MULTIBOOT_PRIV_H */