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Russell King f5fe12b1ea ARM: spectre-v2: harden user aborts in kernel space 
In order to prevent aliasing attacks on the branch predictor,
invalidate the BTB or instruction cache on CPUs that are known to be
affected when taking an abort on a address that is outside of a user
task limit:

Cortex A8, A9, A12, A17, A73, A75: flush BTB.
Cortex A15, Brahma B15: invalidate icache.

If the IBE bit is not set, then there is little point to enabling the
workaround.

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>
2018-05-31 10:40:32 +01:00
..
boot
ARM: SoC fixes for 4.16
2018-03-28 13:52:13 -10:00
common
Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next
2018-01-21 15:38:10 +00:00
configs
ARM: omap2: set CONFIG_LIRC=y in defconfig
2018-02-26 21:38:58 +01:00
crypto
crypto: hash - annotate algorithms taking optional key
2018-01-12 23:03:35 +11:00
firmware
…
include
ARM: spectre-v2: harden user aborts in kernel space
2018-05-31 10:40:32 +01:00
kernel
ARM: bugs: add support for per-processor bug checking
2018-05-31 10:39:34 +01:00
kvm
ARM: kvm: fix building with gcc-8
2018-02-15 20:58:36 +01:00
lib
Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next
2018-01-21 15:38:10 +00:00
mach-actions
ARM: SoC platform updates for 4.15
2017-11-16 14:05:12 -08:00
mach-alpine
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-artpec
…
mach-asm9260
…
mach-aspeed
…
mach-at91
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-axxia
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-bcm
soc: brcmstb: biuctrl: Move to early_initcall
2017-12-20 17:37:44 -08:00
mach-berlin
…
mach-clps711x
ARM: clps711x: mark clps711x_compat as const
2018-02-22 17:42:42 +01:00
mach-cns3xxx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-davinci
A patch fixing GPIO look-up for MMC/SD card detect and write-protect
2018-03-12 15:30:43 +01:00
mach-digicolor
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-dove
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-ebsa110
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-efm32
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-ep93xx
ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivative
2017-12-13 22:26:10 +01:00
mach-exynos
ARM: EXYNOS: Add SPDX license identifiers
2018-01-03 18:36:22 +01:00
mach-footbridge
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
mach-gemini
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-highbank
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-hisi
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-imx
ARM: imx: remove unused imx3 pm definitions
2017-12-26 16:30:20 +08:00
mach-integrator
ARM: SoC platform updates for 4.15
2017-11-16 14:05:12 -08:00
mach-iop13xx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-iop32x
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
mach-iop33x
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-ixp4xx
w1: w1-gpio: Convert to use GPIO descriptors
2017-12-08 15:32:53 +01:00
mach-keystone
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-ks8695
Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2017-11-14 17:52:21 -08:00
mach-lpc18xx
…
mach-lpc32xx
…
mach-mediatek
ARM: mediatek: use more generic prompts for SoCs with ARMv7
2017-12-20 15:48:18 +01:00
mach-meson
Amlogic 32-bit DT changes for v4.16
2017-12-21 16:37:34 +01:00
mach-mmp
ARM: pxa: move header file out of I2C realm
2017-11-28 22:49:30 +01:00
mach-moxart
…
mach-mv78xx0
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-mvebu
ARM: mvebu: Fix broken PL310_ERRATA_753970 selects
2018-02-13 16:39:51 +01:00
mach-mxs
ARM: mxs: constify platform_suspend_ops
2017-09-20 22:21:08 +08:00
mach-netx
…
mach-nomadik
…
mach-nspire
…
mach-omap1
ARM: OMAP1: clock: Fix debugfs_create_*() usage
2018-02-14 08:35:14 -08:00
mach-omap2
ARM: OMAP2+: Fix sar_base inititalization for HS omaps
2018-02-14 08:35:14 -08:00
mach-orion5x
ARM: orion5x: Revert commit 4904dbda41c8.
2018-02-26 13:41:47 -05:00
mach-oxnas
…
mach-picoxcell
…
mach-prima2
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-pxa
ARM: SoC platform updates for 4.16
2018-02-01 16:17:40 -08:00
mach-qcom
…
mach-realview
…
mach-rockchip
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
mach-rpc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-s3c24xx
ARM: S3C24XX: Add SPDX license identifiers
2018-01-03 18:36:43 +01:00
mach-s3c64xx
ARM: S3C64XX: Add SPDX license identifiers
2018-01-03 18:42:53 +01:00
mach-s5pv210
ARM: S5PV210: Add SPDX license identifiers
2018-01-03 18:43:04 +01:00
mach-sa1100
ARM: sa1100/neponset: add GPIO drivers for control and modem registers
2018-01-01 00:50:05 +00:00
mach-shmobile
ARM: SoC platform updates for 4.15
2017-11-16 14:05:12 -08:00
mach-socfpga
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-spear
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-sti
…
mach-stm32
…
mach-sunxi
ARM: sunxi: add support for R40 SoC
2017-09-22 21:57:09 +02:00
mach-tango
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-tegra
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
mach-u300
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-uniphier
kbuild: remove all dummy assignments to obj-
2017-11-18 11:46:06 +09:00
mach-ux500
ARM: ux500: Fix PMU IRQ regression
2018-03-07 16:42:38 +01:00
mach-versatile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-vexpress
ARM: SoC platform updates for 4.15
2017-11-16 14:05:12 -08:00
mach-vt8500
arm: vt8500: kconfig: Remove blank help text
2018-02-02 23:53:10 +09:00
mach-w90x900
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-zx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mach-zynq
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mm
ARM: spectre-v2: harden user aborts in kernel space
2018-05-31 10:40:32 +01:00
net
bpf, arm: remove obsolete exception handling from div/mod
2018-01-26 16:42:07 -08:00
nwfpe
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
oprofile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
plat-iop
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
plat-omap
ARM: OMAP: Fix SRAM W+X mapping
2018-03-21 08:16:29 -07:00
plat-orion
ARM: orion: fix orion_ge00_switch_board_info initialization
2018-02-22 17:48:39 +01:00
plat-pxa
…
plat-samsung
ARM: SAMSUNG: Add SPDX license identifiers
2018-01-03 18:43:13 +01:00
plat-versatile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
probes
ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code
2017-12-17 22:14:21 +00:00
tools
ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivative
2017-12-13 22:26:10 +01:00
vdso
Merge branch 'linus' into locking/core, to resolve conflicts
2017-11-07 10:32:44 +01:00
vfp
ARM: 8746/1: vfp: Go back to clearing vfp_current_hw_state[]
2018-03-24 14:27:48 +00:00
xen
xen: re-introduce support for grant v2 interface
2017-11-06 15:50:17 -05:00
Kconfig
Currently, hardened usercopy performs dynamic bounds checking on slab
2018-02-03 16:25:42 -08:00
Kconfig-nommu
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-11-16 12:50:35 -08:00
Kconfig.debug
ARM: 8747/1: make CONFIG_DEBUG_WX depend on MMU
2018-03-24 14:27:48 +00:00
Makefile
ARM: 8723/2: always assume the "unified" syntax for assembly code
2017-12-17 22:14:21 +00:00