diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-09-03 16:22:38 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-09-08 22:21:34 -0400 |
| commit | 999c83e8ffd90caa00ee6caf054e037cf8a27d0e (patch) | |
| tree | cbb1bdea654262bd8e7cf181d195f88146152609 /arch/x86/include/asm/page_32_types.h | |
| parent | c6f7c753f71cccb21d1a7f0c1127ce7804374c5e (diff) | |
x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h
At least for 64-bit this moves them closer to some of the defines
they are based on, and it prepares for using the TASK_SIZE_MAX
definition from assembly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/include/asm/page_32_types.h')
| -rw-r--r-- | arch/x86/include/asm/page_32_types.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h index 565ad755c785..26236925fb2c 100644 --- a/arch/x86/include/asm/page_32_types.h +++ b/arch/x86/include/asm/page_32_types.h @@ -42,6 +42,17 @@ #endif /* CONFIG_X86_PAE */ /* + * User space process size: 3GB (default). + */ +#define IA32_PAGE_OFFSET PAGE_OFFSET +#define TASK_SIZE PAGE_OFFSET +#define TASK_SIZE_LOW TASK_SIZE +#define TASK_SIZE_MAX TASK_SIZE +#define DEFAULT_MAP_WINDOW TASK_SIZE +#define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP + +/* * Kernel image size is limited to 512 MB (see in arch/x86/kernel/head_32.S) */ #define KERNEL_IMAGE_SIZE (512 * 1024 * 1024) |