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| author | Arvind Sankar <nivedita@alum.mit.edu> | 2020-03-05 18:05:03 +0300 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2020-03-09 13:08:51 +0300 |
| commit | 1babf557bf6e6ab92d5ebea642b9f636c77a4912 (patch) | |
| tree | bdfbd4f792a24418842ca3ad7d0edc5c9132bc36 /arch/microblaze/mm | |
| parent | 519fa60b6007fe19a32c5a50541dd7b38bd11b37 (diff) | |
| download | linux-1babf557bf6e6ab92d5ebea642b9f636c77a4912.tar.xz | |
microblaze: Stop printing the virtual memory layout
For security, don't display the kernel's virtual memory layout.
Kees Cook points out:
"These have been entirely removed on other architectures, so let's
just do the same for ia32 and remove it unconditionally."
071929dbdd86 ("arm64: Stop printing the virtual memory layout")
1c31d4e96b8c ("ARM: 8820/1: mm: Stop printing the virtual memory layout")
31833332f798 ("m68k/mm: Stop printing the virtual memory layout")
fd8d0ca25631 ("parisc: Hide virtual kernel memory layout")
adb1fe9ae2ee ("mm/page_alloc: Remove kernel address exposure in free_reserved_area()")
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Acked-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze/mm')
| -rw-r--r-- | arch/microblaze/mm/init.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 9899ff2ef9b6..1ffbfa96b9b8 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -201,18 +201,6 @@ void __init mem_init(void) #endif mem_init_print_info(NULL); -#ifdef CONFIG_MMU - pr_info("Kernel virtual memory layout:\n"); - pr_info(" * 0x%08lx..0x%08lx : fixmap\n", FIXADDR_START, FIXADDR_TOP); -#ifdef CONFIG_HIGHMEM - pr_info(" * 0x%08lx..0x%08lx : highmem PTEs\n", - PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP)); -#endif /* CONFIG_HIGHMEM */ - pr_info(" * 0x%08lx..0x%08lx : early ioremap\n", - ioremap_bot, ioremap_base); - pr_info(" * 0x%08lx..0x%08lx : vmalloc & ioremap\n", - (unsigned long)VMALLOC_START, VMALLOC_END); -#endif mem_init_done = 1; } |