diff options
Diffstat (limited to 'arch/x86/include/asm/boot.h')
| -rw-r--r-- | arch/x86/include/asm/boot.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h index 52e6ca670ed0..abd06b19ddd2 100644 --- a/arch/x86/include/asm/boot.h +++ b/arch/x86/include/asm/boot.h @@ -31,6 +31,25 @@ #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 |