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0f15adbb28
linux/arch/arm64/mm
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Will Deacon 0f15adbb28 arm64: Add skeleton to harden the branch predictor against aliasing attacks 
Aliasing attacks against CPU branch predictors can allow an attacker to
redirect speculative control flow on some CPUs and potentially divulge
information from one context to another.

This patch adds initial skeleton code behind a new Kconfig option to
enable implementation-specific mitigations against these attacks for
CPUs that are affected.

Co-developed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-01-08 18:45:25 +00:00
..
cache.S arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN 2017-12-11 13:40:35 +00:00
context.c arm64: Add skeleton to harden the branch predictor against aliasing attacks 2018-01-08 18:45:25 +00:00
copypage.c arm64: Defer dcache flush in __cpu_copy_user_page 2015-12-17 11:07:13 +00:00
dma-mapping.c dma mapping : export caller to vmallocinfo 2017-10-04 13:43:00 +01:00
dump.c arm64: dump: Add checking for writable and exectuable pages 2016-11-07 18:15:04 +00:00
extable.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fault.c arm64: Add skeleton to harden the branch predictor against aliasing attacks 2018-01-08 18:45:25 +00:00
flush.c arm64: fix pmem interface definition 2017-08-10 18:13:59 +01:00
hugetlbpage.c arm64: hugetlb: Cleanup setup_hugepagesz 2017-08-22 17:47:12 +01:00
init.c arm64: kdump: provide /proc/vmcore file 2017-04-05 18:31:38 +01:00
ioremap.c arm64: use is_vmalloc_addr 2017-02-09 13:47:56 +00:00
kasan_init.c arm64/mm/kasan: don't use vmemmap_populate() to initialize shadow 2017-11-15 18:21:05 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmap.c arm64/mmap: properly account for stack randomization in mmap_base 2017-07-12 16:26:03 -07:00
mmu.c Merge branch 'for-next/52-bit-pa' into for-next/core 2017-12-22 17:40:58 +00:00
numa.c arm64/numa: Drop duplicate message 2017-07-20 17:03:53 +01:00
pageattr.c arm64: use set_memory.h header 2017-05-08 17:15:13 -07:00
pgd.c arm64: handle 52-bit addresses in TTBR 2017-12-22 17:35:21 +00:00
physaddr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.S arm64: Move post_ttbr_update_workaround to C code 2018-01-08 18:45:19 +00:00
ptdump_debugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00