From: f.fainelli@gmail.com (Florian Fainelli)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 08/14] ARM: spectre-v2: harden user aborts in kernel space
Date: Wed, 16 May 2018 09:35:07 -0700 [thread overview]
Message-ID: <cdcde1ef-afa0-cf7c-b680-829b54b03042@gmail.com> (raw)
In-Reply-To: <E1fIuBK-0003q7-9n@rmk-PC.armlinux.org.uk>
On 05/16/2018 04:01 AM, Russell King wrote:
> 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.
>
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
next prev parent reply other threads:[~2018-05-16 16:35 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 10:59 [PATCH 0/14] ARM Spectre variant 2 fixes Russell King - ARM Linux
2018-05-16 11:00 ` [PATCH 01/14] ARM: add CPU part numbers for Cortex A73, A75 and Brahma B15 Russell King
2018-05-16 16:19 ` Florian Fainelli
2018-05-16 11:00 ` [PATCH 02/14] ARM: bugs: prepare processor bug infrastructure Russell King
2018-05-16 16:21 ` Florian Fainelli
2018-05-16 11:00 ` [PATCH 03/14] ARM: bugs: hook processor bug checking into SMP and suspend paths Russell King
2018-05-16 16:23 ` Florian Fainelli
2018-05-19 10:13 ` Russell King - ARM Linux
2018-05-16 11:00 ` [PATCH 04/14] ARM: bugs: add support for per-processor bug checking Russell King
2018-05-16 16:23 ` Florian Fainelli
2018-05-16 11:01 ` [PATCH 05/14] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Russell King
2018-05-16 16:24 ` Florian Fainelli
2018-05-16 11:01 ` [PATCH 06/14] ARM: spectre-v2: harden branch predictor on context switches Russell King
2018-05-16 11:33 ` Vladimir Murzin
2018-05-16 11:01 ` [PATCH 07/14] ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit Russell King
2018-05-16 16:33 ` Florian Fainelli
2018-05-16 16:34 ` Florian Fainelli
2018-05-22 10:38 ` Geert Uytterhoeven
2018-05-22 10:55 ` Russell King - ARM Linux
2018-05-16 11:01 ` [PATCH 08/14] ARM: spectre-v2: harden user aborts in kernel space Russell King
2018-05-16 16:35 ` Florian Fainelli [this message]
2018-05-16 11:01 ` [PATCH 09/14] ARM: spectre-v2: add PSCI based hardening Russell King
2018-05-16 17:01 ` Marc Zyngier
2018-05-16 11:01 ` [PATCH 10/14] ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17 Russell King
2018-05-16 11:01 ` [PATCH 11/14] ARM: KVM: invalidate icache on guest exit for Cortex-A15 Russell King
2018-05-16 11:01 ` [PATCH 12/14] ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15 Russell King
2018-05-16 16:27 ` Florian Fainelli
2018-05-16 11:01 ` [PATCH 13/14] ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling Russell King
2018-05-16 11:01 ` [PATCH 14/14] ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1 Russell King
-- strict thread matches above, loose matches on Subject: below --
2018-05-21 11:42 [PATCH v2 00/14] ARM Spectre variant 2 fixes Russell King - ARM Linux
2018-05-21 11:45 ` [PATCH 08/14] ARM: spectre-v2: harden user aborts in kernel space Russell King
2018-05-22 17:15 ` Marc Zyngier
2018-05-22 17:56 ` Russell King - ARM Linux
2018-05-22 18:12 ` Russell King - ARM Linux
2018-05-22 18:19 ` Florian Fainelli
2018-05-22 23:25 ` Russell King - ARM Linux
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