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Marc Zyngier 55e3748e89 arm64: KVM: Add ARCH_WORKAROUND_2 support for guests 
In order to offer ARCH_WORKAROUND_2 support to guests, we need
a bit of infrastructure.

Let's add a flag indicating whether or not the guest uses
SSBD mitigation. Depending on the state of this flag, allow
KVM to disable ARCH_WORKAROUND_2 before entering the guest,
and enable it when exiting it.

Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-05-31 18:00:55 +01:00
..
boot
Two fixes for v4.17-rc cycle
2018-04-26 16:54:12 +02:00
common
Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next
2018-01-21 15:38:10 +00:00
configs
ARM: defconfig: Update Gemini defconfig
2018-04-26 16:55:43 +02:00
crypto
kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers
2018-04-07 19:04:02 +09:00
firmware
…
include
arm64: KVM: Add ARCH_WORKAROUND_2 support for guests
2018-05-31 18:00:55 +01:00
kernel
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2018-04-09 09:19:30 -07:00
kvm
arm/arm64: KVM: Add PSCI version selection API
2018-04-20 16:32:23 +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
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mach-asm9260
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mach-aspeed
…
mach-at91
ARM: at91: Kconfig: Update company to Microchip
2018-02-28 16:21:51 +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
ARM: SoC platform updates for 4.17
2018-04-05 21:21:08 -07:00
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: Simplify code in coupled CPU idle hot path
2018-03-21 18:51:39 +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: SoC platform updates for 4.17
2018-04-05 21:21:08 -07:00
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
mtd: nand: remove useless fields from pxa3xx NAND platform data
2018-03-02 21:51:41 +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
…
mach-netx
…
mach-nomadik
…
mach-npcm
arm: npcm: enable L2 cache in NPCM7xx architecture
2018-04-10 16:40:03 +02:00
mach-nspire
ARM: nspire: Remove unneeded nspire_map_io()
2018-03-07 16:07:35 +01:00
mach-omap1
Move omap timer to drivers for 4.17
2018-03-07 16:16:07 +01:00
mach-omap2
ARM: OMAP2+: Fix build when using split object directories
2018-04-18 10:07:13 -07:00
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 4.17
2018-04-05 21:21:08 -07:00
mach-qcom
…
mach-realview
…
mach-rockchip
ARM: rockchip: Set name of pmu regmap_config in smp code
2018-03-12 11:09:36 +01:00
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: jive: Fix some GPIO names
2018-04-26 16:55:03 +02:00
mach-s3c64xx
spi: spi-gpio: Rewrite to use GPIO descriptors
2018-02-14 16:02:41 +00:00
mach-s5pv210
ARM: S5PV210: Add SPDX license identifiers
2018-01-03 18:43:04 +01:00
mach-sa1100
ARM: sa1100/simpad: switch simpad CF to use gpiod APIs
2018-04-06 15:53:22 +01:00
mach-shmobile
ARM: shmobile: rcar-gen2: Add watchdog support
2018-03-13 20:54:16 +01:00
mach-socfpga
ARM: socfpga: PM: Drop useless check for PM_SUSPEND_STANDBY
2018-03-07 16:08:20 +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
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mach-stm32
ARM: stm32: restore reboot capabilities
2018-03-05 09:11:58 +01:00
mach-sunxi
ARM: sunxi: mc-smp: Split out SoC-specific device node lookup sequence
2018-03-10 16:14:57 +08:00
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
exec: pass stack rlimit into mm layout functions
2018-04-11 10:28:37 -07:00
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: SoC platform updates for 4.17
2018-04-05 21:21:08 -07:00
plat-orion
ARM: orion: fix orion_ge00_switch_board_info initialization
2018-02-22 17:48:39 +01:00
plat-pxa
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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
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2018-04-09 09:19:30 -07:00
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: npcm: add basic support for Nuvoton BMCs
2018-03-06 17:54:23 +01:00