1#ifndef _ASM_X86_BOOT_H 2#define _ASM_X86_BOOT_H 3 4 5#include <asm/pgtable_types.h> 6#include <uapi/asm/boot.h> 7 8/* Physical address where kernel should be loaded. */ 9#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ 10 + (CONFIG_PHYSICAL_ALIGN - 1)) \ 11 & ~(CONFIG_PHYSICAL_ALIGN - 1)) 12 13/* Minimum kernel alignment, as a power of two */ 14#ifdef CONFIG_X86_64 15# define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT 16#else 17# define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_SIZE_ORDER) 18#endif 19#define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2) 20 21#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \ 22 (CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN) 23# error "Invalid value for CONFIG_PHYSICAL_ALIGN" 24#endif 25 26#ifdef CONFIG_KERNEL_BZIP2 27# define BOOT_HEAP_SIZE 0x400000 28#else /* !CONFIG_KERNEL_BZIP2 */ 29# define BOOT_HEAP_SIZE 0x10000 30#endif 31 32#ifdef CONFIG_X86_64 33# define BOOT_STACK_SIZE 0x4000 34 35# define BOOT_INIT_PGT_SIZE (6*4096) 36# ifdef CONFIG_RANDOMIZE_BASE 37/* 38 * Assuming all cross the 512GB boundary: 39 * 1 page for level4 40 * (2+2)*4 pages for kernel, param, cmd_line, and randomized kernel 41 * 2 pages for first 2M (video RAM: CONFIG_X86_VERBOSE_BOOTUP). 42 * Total is 19 pages. 43 */ 44# ifdef CONFIG_X86_VERBOSE_BOOTUP 45# define BOOT_PGT_SIZE (19*4096) 46# else /* !CONFIG_X86_VERBOSE_BOOTUP */ 47# define BOOT_PGT_SIZE (17*4096) 48# endif 49# else /* !CONFIG_RANDOMIZE_BASE */ 50# define BOOT_PGT_SIZE BOOT_INIT_PGT_SIZE 51# endif 52 53#else /* !CONFIG_X86_64 */ 54# define BOOT_STACK_SIZE 0x1000 55#endif 56 57#endif /* _ASM_X86_BOOT_H */ 58