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authorArvind Sankar <nivedita@alum.mit.edu>2020-03-05 18:05:03 +0300
committerMichal Simek <michal.simek@xilinx.com>2020-03-09 13:08:51 +0300
commit1babf557bf6e6ab92d5ebea642b9f636c77a4912 (patch)
treebdfbd4f792a24418842ca3ad7d0edc5c9132bc36 /arch/microblaze
parent519fa60b6007fe19a32c5a50541dd7b38bd11b37 (diff)
downloadlinux-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')
-rw-r--r--arch/microblaze/mm/init.c12
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;
}