From: nm@ti.com (Nishanth Menon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/6] ARM branch predictor hardening
Date: Wed, 10 Jan 2018 16:59:15 -0600 [thread overview]
Message-ID: <381ab8ef-15db-5018-74ec-74d65cfb6883@ti.com> (raw)
In-Reply-To: <20180108185533.9698-1-marc.zyngier@arm.com>
On 01/08/2018 12:55 PM, Marc Zyngier wrote:
[...]
> These patches are closely modelled against what we do on arm64,
> although simpler as we can rely on an architected instruction to
> perform the invalidation. The notable exception is Cortex-A15, where
> BTB invalidation behaves like a NOP, and the only way to shoot the
> predictor down is to invalidate the icache *and* to have ACTLR[0] set
> to 1 (which is a secure-only operation).
On u-boot side, we'd probably have to work off ->
http://git.denx.de/?p=u-boot.git;a=commitdiff;h=a615d0be6a73fc48a22e5662608260fe9b9149ff
[...]
--
Regards,
Nishanth Menon
prev parent reply other threads:[~2018-01-10 22:59 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 18:55 [PATCH v2 0/6] ARM branch predictor hardening Marc Zyngier
2018-01-08 18:55 ` [PATCH v2 1/6] arm: Add BTB invalidation on switch_mm for Cortex-A9, A12 and A17 Marc Zyngier
2018-01-09 14:14 ` Andre Przywara
2018-01-09 14:21 ` Marc Zyngier
2018-01-09 14:22 ` Marc Zyngier
2018-01-10 17:53 ` Tony Lindgren
2018-01-10 17:57 ` Marc Zyngier
2018-01-10 21:52 ` Nishanth Menon
2018-01-11 9:03 ` Marc Zyngier
2018-01-29 18:41 ` Fabio Estevam
2018-01-29 19:21 ` Fabio Estevam
2018-01-29 19:28 ` Fabio Estevam
2018-01-08 18:55 ` [PATCH v2 2/6] arm: Invalidate BTB on prefetch abort outside of user mapping on Cortex A8, A9, " Marc Zyngier
2018-01-09 9:56 ` Marc Zyngier
2018-01-10 16:45 ` Russell King - ARM Linux
2018-01-08 18:55 ` [PATCH v2 3/6] arm: KVM: Invalidate BTB on guest exit Marc Zyngier
2018-01-15 12:22 ` Robin Murphy
2018-01-23 14:22 ` Christoffer Dall
2018-01-23 14:38 ` Marc Zyngier
2018-01-08 18:55 ` [PATCH v2 4/6] arm: Add icache invalidation on switch_mm for Cortex-A15 Marc Zyngier
2018-01-10 1:28 ` Florian Fainelli
2018-01-10 1:33 ` André Przywara
2018-01-10 1:35 ` Florian Fainelli
2018-01-10 9:13 ` Andre Przywara
2018-01-08 18:55 ` [PATCH v2 5/6] arm: Invalidate icache on prefetch abort outside of user mapping on Cortex-A15 Marc Zyngier
2018-01-08 18:55 ` [PATCH v2 6/6] arm: KVM: Invalidate icache on guest exit for Cortex-A15 Marc Zyngier
2018-01-23 14:26 ` Christoffer Dall
2018-01-09 17:13 ` [PATCH v2 0/6] ARM branch predictor hardening Florian Fainelli
2018-01-09 17:46 ` Russell King - ARM Linux
2018-01-10 16:50 ` Nishanth Menon
2018-01-10 17:16 ` Marc Zyngier
2018-01-10 22:59 ` Nishanth Menon [this message]
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