Yinghai Lu 72212675d1 x86, 64bit, mm: Mark data/bss/brk to nx ... HPA said, we should not have RW and +x set at the time. for kernel layout: [ 0.000000] Kernel Layout: [ 0.000000] .text: [0x01000000-0x021434f8] [ 0.000000] .rodata: [0x02200000-0x02a13fff] [ 0.000000] .data: [0x02c00000-0x02dc763f] [ 0.000000] .init: [0x02dc9000-0x0312cfff] [ 0.000000] .bss: [0x0313b000-0x03dd6fff] [ 0.000000] .brk: [0x03dd7000-0x03dfffff] before the patch, we have ---[ High Kernel Mapping ]--- 0xffffffff80000000-0xffffffff81000000 16M pmd 0xffffffff81000000-0xffffffff82200000 18M ro PSE GLB x pmd 0xffffffff82200000-0xffffffff82c00000 10M ro PSE GLB NX pmd 0xffffffff82c00000-0xffffffff82dc9000 1828K RW GLB x pte 0xffffffff82dc9000-0xffffffff82e00000 220K RW GLB NX pte 0xffffffff82e00000-0xffffffff83000000 2M RW PSE GLB NX pmd 0xffffffff83000000-0xffffffff8313a000 1256K RW GLB NX pte 0xffffffff8313a000-0xffffffff83200000 792K RW GLB x pte 0xffffffff83200000-0xffffffff83e00000 12M RW PSE GLB x pmd 0xffffffff83e00000-0xffffffffa0000000 450M pmd after patch,, we get ---[ High Kernel Mapping ]--- 0xffffffff80000000-0xffffffff81000000 16M pmd 0xffffffff81000000-0xffffffff82200000 18M ro PSE GLB x pmd 0xffffffff82200000-0xffffffff82c00000 10M ro PSE GLB NX pmd 0xffffffff82c00000-0xffffffff82e00000 2M RW GLB NX pte 0xffffffff82e00000-0xffffffff83000000 2M RW PSE GLB NX pmd 0xffffffff83000000-0xffffffff83200000 2M RW GLB NX pte 0xffffffff83200000-0xffffffff83e00000 12M RW PSE GLB NX pmd 0xffffffff83e00000-0xffffffffa0000000 450M pmd so data, bss, brk get NX ... Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1359058816-7615-33-git-send-email-yinghai@kernel.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>		2013-01-29 19:32:58 -08:00
..
kmemcheck	bug.h: add include of it to various implicit C users	2012-02-29 17:15:08 -05:00
amdtopology.c	x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too	2011-05-02 17:24:48 +02:00
dump_pagetables.c	x86, mm: Create symbolic index into address_markers array	2010-07-20 16:56:19 -07:00
extable.c	x86, extable: Switch to relative exception table entries	2012-04-20 17:22:34 -07:00
fault.c	mm, oom: remove statically defined arch functions of same name	2012-12-12 17:38:34 -08:00
gup.c	thp: add compound tail page _mapcount when mapped	2011-12-09 07:50:28 -08:00
highmem_32.c	highmem: kill all __kmap_atomic()	2012-03-20 21:48:30 +08:00
hugetlbpage.c	mm: use vm_unmapped_area() in hugetlbfs on i386 architecture	2012-12-11 17:22:25 -08:00
init_32.c	Merge remote-tracking branch 'origin/x86/boot' into x86/mm2	2013-01-29 15:10:15 -08:00
init_64.c	x86, 64bit, mm: Mark data/bss/brk to nx	2013-01-29 19:32:58 -08:00
init.c	x86, kexec, 64bit: Only set ident mapping for ram.	2013-01-29 15:26:35 -08:00
iomap_32.c	mm: fix race in kunmap_atomic()	2010-10-27 18:03:05 -07:00
ioremap.c	Revert "x86, mm: Include the entire kernel memory map in trampoline_pgd"	2012-12-15 12:29:54 -08:00
kmmio.c	x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages	2010-06-18 11:30:09 +02:00
Makefile	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	2011-07-14 11:47:53 -07:00
memtest.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	2011-07-14 11:47:53 -07:00
mm_internal.h	x86, mm: Move after_bootmem to mm_internel.h	2012-11-17 11:59:45 -08:00
mmap.c	x86: Fix mmap random address range	2011-12-05 17:07:23 +01:00
mmio-mod.c	module_param: make bool parameters really bool (arch)	2012-01-13 09:32:18 +10:30
numa_32.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	2011-07-14 11:47:53 -07:00
numa_64.c	x86, mm: kill numa_free_all_bootmem()	2012-11-17 11:59:47 -08:00
numa_emulation.c	x86: print physical addresses consistently with other parts of kernel	2012-05-29 16:22:21 -07:00
numa_internal.h	x86, NUMA: Initialize and use remap allocator from setup_node_bootmem()	2011-05-02 14:18:54 +02:00
numa.c	x86: print physical addresses consistently with other parts of kernel	2012-05-29 16:22:21 -07:00
pageattr-test.c	x86: Convert vmalloc()+memset() to vzalloc()	2011-05-28 19:53:57 +02:00
pageattr.c	Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"	2012-12-15 15:20:41 -08:00
pat_internal.h	x86, pat: Fix memory leak in free_memtype	2010-05-26 11:26:04 -07:00
pat_rbtree.c	rbtree: move augmented rbtree functionality to rbtree_augmented.h	2012-10-09 16:22:40 +09:00
pat.c	mm, x86, pat: rework linear pfn-mmap tracking	2012-10-09 16:22:16 +09:00
pf_in.c	x86: Eliminate various 'set but not used' warnings	2011-05-21 19:10:33 +02:00
pf_in.h	x86 mmiotrace: move files into arch/x86/mm/.	2008-05-24 11:25:37 +02:00
pgtable_32.c	Disintegrate asm/system.h for X86	2012-03-28 18:11:12 +01:00
pgtable.c	Automatic NUMA Balancing V11	2012-12-16 15:18:08 -08:00
physaddr.c	x86: split __phys_addr out into separate file	2009-09-10 11:48:55 -07:00
physaddr.h	x86: split __phys_addr out into separate file	2009-09-10 11:48:55 -07:00
setup_nx.c	x86, cpu: Only CPU features determine NX capabilities	2010-11-10 15:43:15 -08:00
srat.c	ACPI: Only count valid srat memory structures	2012-08-03 00:15:53 -04:00
testmmiotrace.c	x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages	2010-06-18 11:30:09 +02:00
tlb.c	x86, 386 removal: Remove CONFIG_INVLPG	2012-11-29 13:23:02 -08:00