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06c23f5ffe
linux_dsm_epyc7002/arch/arm
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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
..
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: bugs: add support for per-processor bug checking 2018-05-31 10:39:34 +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 4904dbda41. 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
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 branch predictor on context switches 2018-05-31 10:39:55 +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