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