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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BOOT_H
#define _ASM_X86_BOOT_H
#include <asm/pgtable_types.h>
#include <uapi/asm/boot.h>
/* Physical address where kernel should be loaded. */
#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+ (CONFIG_PHYSICAL_ALIGN - 1)) \
& ~(CONFIG_PHYSICAL_ALIGN - 1))
/* Minimum kernel alignment, as a power of two */
#ifdef CONFIG_X86_64
# define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
#else
# define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_SIZE_ORDER)
#endif
#define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
(CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN)
# error "Invalid value for CONFIG_PHYSICAL_ALIGN"
#endif
#ifdef CONFIG_KERNEL_BZIP2
# define BOOT_HEAP_SIZE 0x400000
#else /* !CONFIG_KERNEL_BZIP2 */
# define BOOT_HEAP_SIZE 0x10000
#endif
#ifdef CONFIG_X86_64
# define BOOT_STACK_SIZE 0x4000
# define BOOT_INIT_PGT_SIZE (6*4096)
# ifdef CONFIG_RANDOMIZE_BASE
/*
* Assuming all cross the 512GB boundary:
* 1 page for level4
* (2+2)*4 pages for kernel, param, cmd_line, and randomized kernel
* 2 pages for first 2M (video RAM: CONFIG_X86_VERBOSE_BOOTUP).
* Total is 19 pages.
*/
# ifdef CONFIG_X86_VERBOSE_BOOTUP
# define BOOT_PGT_SIZE (19*4096)
# else /* !CONFIG_X86_VERBOSE_BOOTUP */
# define BOOT_PGT_SIZE (17*4096)
# endif
# else /* !CONFIG_RANDOMIZE_BASE */
# define BOOT_PGT_SIZE BOOT_INIT_PGT_SIZE
# endif
#else /* !CONFIG_X86_64 */
# define BOOT_STACK_SIZE 0x1000
#endif
#endif /* _ASM_X86_BOOT_H */
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