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Thu, 01 Aug 2019 01:20:08 -0700 (PDT) From: Viresh Kumar To: stable@vger.kernel.org Subject: [PATCH ARM32 v4.4 V2 13/47] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Date: Thu, 1 Aug 2019 13:45:57 +0530 Message-Id: X-Mailer: git-send-email 2.21.0.rc0.269.g1a574e7a288b In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190801_012010_794065_0CCA9321 X-CRM114-Status: GOOD ( 10.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Julien Thierry , Marc Zyngier , Viresh Kumar , guohanjun@huawei.com, Will Deacon , mark.brown@arm.com, Catalin Marinas , Russell King , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Russell King Commit c58d237d0852a57fde9bc2c310972e8f4e3d155d upstream. Add a Kconfig symbol for CPUs which are vulnerable to the Spectre attacks. Signed-off-by: Russell King Reviewed-by: Florian Fainelli Boot-tested-by: Tony Lindgren Reviewed-by: Tony Lindgren Acked-by: Marc Zyngier Signed-off-by: David A. Long Signed-off-by: Viresh Kumar --- arch/arm/mm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 41218867a9a6..7ef92e6692ab 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -396,6 +396,7 @@ 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_TLB_V7 if MMU # ARMv7M @@ -793,6 +794,9 @@ 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