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linux/arch/arm/mm
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Russell King 06c23f5ffe ARM: spectre-v2: harden branch predictor on context switches 
Harden the branch predictor against Spectre v2 attacks on context
switches for ARMv7 and later CPUs.  We do this by:

Cortex A9, A12, A17, A73, A75: invalidating the BTB.
Cortex A15, Brahma B15: invalidating the instruction cache.

Cortex A57 and Cortex A72 are not addressed in this patch.

Cortex R7 and Cortex R8 are also not addressed as we do not enforce
memory protection on these cores.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
2018-05-31 10:39:55 +01:00
..
abort-ev4.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev4t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev5t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev5tj.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev6.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-ev7.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-lv4t.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-macro.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
abort-nommu.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
alignment.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
2017-03-02 08:42:34 +01:00
cache-aurora-l2.h
…
cache-b15-rac.c
ARM: 8741/1: B15: fix unused label warnings
2018-01-21 15:32:25 +00:00
cache-fa.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-feroceon-l2.c
ARM: 8416/1: Feroceon: use of_iomap() to map register base
2015-08-18 14:00:30 +01:00
cache-l2x0-pmu.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
cache-l2x0.c
ARM: 8659/1: l2c: allow CA9 optimizations to be disabled
2017-03-17 10:01:26 +00:00
cache-nop.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-tauros2.c
ARM: l2c: tauros2: use descriptive definitions for register bits
2015-11-26 22:12:26 +00:00
cache-tauros3.h
ARM: 7922/1: l2x0: add Marvell Tauros3 support
2013-12-29 12:32:47 +00:00
cache-uniphier.c
ARM: 8652/1: cache-uniphier: clean up active way setup code
2017-02-28 11:06:17 +00:00
cache-v4.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v4wb.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
cache-v4wt.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v6.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v7.S
ARM: 8729/1: Hook B15 readahead cache functions based on processor
2017-12-17 22:15:36 +00:00
cache-v7m.S
scripts/spelling.txt: add "swith" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
cache-xsc3l2.c
…
context.c
ARM: 8465/1: mm: keep reserved ASIDs in sync with mm after multiple rollovers
2015-12-02 23:57:54 +00:00
copypage-fa.c
…
copypage-feroceon.c
…
copypage-v4mc.c
…
copypage-v4wb.c
…
copypage-v4wt.c
…
copypage-v6.c
ARM: 8236/1: mm: fix discard_old_kernel_data
2014-12-03 16:00:04 +00:00
copypage-xsc3.c
…
copypage-xscale.c
…
dma-mapping-nommu.c
dma-direct: make dma_direct_{alloc,free} available to other implementations
2018-01-15 09:35:14 +01:00
dma-mapping.c
ARM: 8699/1: dma-mapping: Remove init_dma_coherent_pool_size()
2017-09-28 11:13:06 +01:00
dma.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dump.c
ARM: 8737/1: mm: dump: add checking for writable and executable
2018-01-21 15:32:20 +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-armv.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
fault.c
ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code
2017-12-17 22:14:21 +00:00
fault.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
flush.c
ARM: 8627/1: avoid cache flushing in flush_dcache_page()
2017-01-10 23:31:30 +00:00
fsr-2level.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fsr-3level.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
highmem.c
kmap_atomic_to_page() has no users, remove it
2015-11-09 15:11:24 -08:00
hugetlbpage.c
mm/hugetlb: reduce arch dependent code about huge_pmd_unshare
2015-06-24 17:49:41 -07:00
idmap.c
ARM: 8734/1: mm: idmap: Mark variables as ro_after_init
2017-12-17 22:16:20 +00:00
init.c
ARM: 8737/1: mm: dump: add checking for writable and executable
2018-01-21 15:32:20 +00:00
iomap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ioremap.c
ARM: Implement pci_remap_cfgspace() interface
2017-04-24 13:53:13 -05:00
Kconfig
ARM: spectre-v2: harden branch predictor on context switches
2018-05-31 10:39:55 +01:00
l2c-common.c
ARM: outer cache: add WARN_ON() to outer_disable()
2014-05-30 00:47:23 +01:00
l2c-l2x0-resume.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Makefile
ARM: 8735/1: mm: dump: make page table dumping reusable
2018-01-21 15:32:17 +00:00
mm.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mmap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mmu.c
ARM: 8685/1: ensure memblock-limit is pmd-aligned
2017-06-29 23:10:12 +01:00
nommu.c
ARM: 8739/1: NOMMU: Setup VBAR/Hivecs for secondaries cores
2018-01-21 15:32:23 +00:00
pabort-legacy.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pabort-v6.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pabort-v7.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pageattr.c
arm: use set_memory.h header
2017-05-08 17:15:13 -07:00
pgd.c
mm: introduce wrappers to access mm->nr_ptes
2017-11-15 18:21:04 -08:00
physaddr.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pmsa-v7.c
ARM: 8740/1: NOMMU: Make sure we do not hold stale data in mem[] array
2018-01-21 15:32:24 +00:00
proc-arm7tdmi.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm9tdmi.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm720.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm740.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm920.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm922.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm925.S
ARM: 8349/1: arch/arm/mm/proc-arm925.S: remove dead #ifdef block
2015-05-03 23:22:27 +01:00
proc-arm926.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm940.S
Merge branches 'misc', 'vdso' and 'fixes' into for-next
2015-04-14 22:28:25 +01:00
proc-arm946.S
Merge branches 'misc', 'vdso' and 'fixes' into for-next
2015-04-14 22:28:25 +01:00
proc-arm1020.S
ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE
2015-05-03 23:22:09 +01:00
proc-arm1020e.S
ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE
2015-05-03 23:22:09 +01:00
proc-arm1022.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm1026.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-fa526.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-feroceon.S
ARM: 8350/1: proc-feroceon: Fix feroceon_proc_info macro
2015-05-03 23:23:09 +01:00
proc-macros.S
ARM: bugs: add support for per-processor bug checking
2018-05-31 10:39:34 +01:00
proc-mohawk.S
ARM: mohawk: allow building with MMU disabled
2015-12-01 21:44:25 +01:00
proc-sa110.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-sa1100.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-syms.c
…
proc-v6.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-v7-2level.S
ARM: spectre-v2: harden branch predictor on context switches
2018-05-31 10:39:55 +01:00
proc-v7-3level.S
ARM: 8690/1: lpae: build TTB control register value from scratch in v7_ttb_setup
2017-08-29 13:09:12 +01:00
proc-v7.S
ARM: spectre-v2: harden branch predictor on context switches
2018-05-31 10:39:55 +01:00
proc-v7m.S
Merge branches 'fixes' and 'misc' into for-next
2017-04-26 10:59:49 +01:00
proc-xsc3.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-xscale.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
ptdump_debugfs.c
ARM: 8735/1: mm: dump: make page table dumping reusable
2018-01-21 15:32:17 +00:00
pv-fixup-asm.S
ARM: re-implement physical address space switching
2015-06-01 23:46:33 +01:00
tcm.h
…
tlb-fa.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4wb.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4wbi.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v6.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v7.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00