mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-10 17:34:45 +00:00
0588ef3ae3
In this way, all multiboot standard data structure could be found in multiboot_std.h. The multiboot_priv.h stores all private definitions and multiboot.h is the only public API header file. Tracked-On: #5661 Signed-off-by: Victor Sun <victor.sun@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2020 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef MULTIBOOT_PRIV_H
|
|
#define MULTIBOOT_PRIV_H
|
|
|
|
/* extended flags for acrn multiboot info from multiboot2 */
|
|
#define MULTIBOOT_INFO_HAS_EFI_MMAP 0x00010000U
|
|
#define MULTIBOOT_INFO_HAS_EFI64 0x00020000U
|
|
|
|
#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_mbi(struct acrn_multiboot_info *mbi, void *mb2_info);
|
|
#endif
|
|
|
|
static inline bool boot_from_multiboot1(uint32_t magic, uint32_t info)
|
|
{
|
|
return ((magic == MULTIBOOT_INFO_MAGIC) && (info != 0U));
|
|
}
|
|
|
|
#endif /* MULTIBOOT_PRIV_H */
|