From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King Subject: [PATCH 05/14] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Date: Wed, 16 May 2018 12:01:02 +0100 Message-ID: References: <20180516105949.GJ16141@n2100.armlinux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 1ED9D42121 for ; Wed, 16 May 2018 06:52:00 -0400 (EDT) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cKC2CxAe80qg for ; Wed, 16 May 2018 06:51:35 -0400 (EDT) Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 5C43349EA2 for ; Wed, 16 May 2018 06:51:08 -0400 (EDT) In-Reply-To: <20180516105949.GJ16141@n2100.armlinux.org.uk> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: linux-arm-kernel@lists.infradead.org Cc: Marc Zyngier , Florian Fainelli , kvmarm@lists.cs.columbia.edu, Christoffer Dall List-Id: kvmarm@lists.cs.columbia.edu Add a Kconfig symbol for CPUs which are vulnerable to the Spectre attacks. Signed-off-by: Russell King --- arch/arm/mm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 7f14acf67caf..8a5a1bb415c4 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -415,6 +415,7 @@ config CPU_V7 select CPU_CP15_MPU if !MMU select CPU_HAS_ASID if MMU select CPU_PABRT_V7 + select CPU_SPECTRE select CPU_THUMB_CAPABLE select CPU_TLB_V7 if MMU @@ -826,6 +827,9 @@ config CPU_BPREDICT_DISABLE help Say Y here to disable branch prediction. If unsure, say N. +config CPU_SPECTRE + bool + config TLS_REG_EMUL bool select NEED_KUSER_HELPERS -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: rmk+kernel@armlinux.org.uk (Russell King) Date: Wed, 16 May 2018 12:01:02 +0100 Subject: [PATCH 05/14] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre In-Reply-To: <20180516105949.GJ16141@n2100.armlinux.org.uk> References: <20180516105949.GJ16141@n2100.armlinux.org.uk> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add a Kconfig symbol for CPUs which are vulnerable to the Spectre attacks. Signed-off-by: Russell King --- arch/arm/mm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 7f14acf67caf..8a5a1bb415c4 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -415,6 +415,7 @@ config CPU_V7 select CPU_CP15_MPU if !MMU select CPU_HAS_ASID if MMU select CPU_PABRT_V7 + select CPU_SPECTRE select CPU_THUMB_CAPABLE select CPU_TLB_V7 if MMU @@ -826,6 +827,9 @@ config CPU_BPREDICT_DISABLE help Say Y here to disable branch prediction. If unsure, say N. +config CPU_SPECTRE + bool + config TLS_REG_EMUL bool select NEED_KUSER_HELPERS -- 2.7.4