From: rmk+kernel@armlinux•org.uk (Russell King)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 05/15] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre
Date: Fri, 25 May 2018 15:00:48 +0100 [thread overview]
Message-ID: <E1fMDGy-0006ym-CZ@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <20180525135938.GE17671@n2100.armlinux.org.uk>
Add a Kconfig symbol for CPUs which are vulnerable to the Spectre
attacks.
Signed-off-by: Russell King <rmk+kernel@armlinux•org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail•com>
---
arch/arm/mm/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7f14acf67caf..6f3ef86b4cb7 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 if MMU
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
next prev parent reply other threads:[~2018-05-25 14:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-25 13:59 [PATCH v3 00/15] ARM Spectre variant 2 fixes Russell King - ARM Linux
2018-05-25 14:00 ` [PATCH v3 01/15] ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs Russell King
2018-05-25 14:00 ` [PATCH v3 02/15] ARM: bugs: prepare processor bug infrastructure Russell King
2018-05-25 14:00 ` [PATCH v3 03/15] ARM: bugs: hook processor bug checking into SMP and suspend paths Russell King
2018-05-25 14:00 ` [PATCH v3 04/15] ARM: bugs: add support for per-processor bug checking Russell King
2018-05-25 14:00 ` Russell King [this message]
2018-05-25 14:00 ` [PATCH v3 06/15] ARM: spectre-v2: harden branch predictor on context switches Russell King
2018-05-25 14:00 ` [PATCH v3 07/15] ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit Russell King
2018-05-25 14:01 ` [PATCH v3 08/15] ARM: spectre-v2: harden user aborts in kernel space Russell King
2018-05-25 15:47 ` Tony Lindgren
2018-05-25 15:52 ` Russell King - ARM Linux
2018-05-25 16:01 ` Tony Lindgren
2018-05-25 16:15 ` Tony Lindgren
2018-05-25 14:01 ` [PATCH v3 09/15] ARM: spectre-v2: add firmware based hardening Russell King
2018-05-25 14:01 ` [PATCH v3 10/15] ARM: spectre-v2: warn about incorrect context switching functions Russell King
2018-05-25 14:01 ` [PATCH v3 11/15] ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17 Russell King
2018-05-25 14:01 ` [PATCH v3 12/15] ARM: KVM: invalidate icache on guest exit for Cortex-A15 Russell King
2018-05-25 14:01 ` [PATCH v3 13/15] ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15 Russell King
2018-05-25 14:01 ` [PATCH v3 14/15] ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling Russell King
2018-05-25 14:01 ` [PATCH v3 15/15] ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1 Russell King
2018-05-25 16:25 ` [PATCH v3 00/15] ARM Spectre variant 2 fixes Tony Lindgren
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