From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtMMqCivs+wmx21t+mfzy6kdWYNqjqRmQgg0XbKKVW1qDtA4kAj0nHuos3mbAmTHBpCeEdi ARC-Seal: i=1; a=rsa-sha256; t=1521201327; cv=none; d=google.com; s=arc-20160816; b=tay6ZRSN4HcRN2lkEGuR7ZOEiSKKQ7wqtbb1nnq7IhpXW3HDssb+T8dD3eYjDjZYtY NDaBLw9Tmp2ATNwUyG41wjFsSjz29NgOXkSlPleEA6Iapb92EOgbuZiYStYpzHxWhCzY lS01l0Iy6AxoWjWQNdOcuzfPFo9SRMVaMugsXkXsT9M/ntVrdoYTLsLf0xAb2djB7y+c 3mbffWKeC0EvxRZ+RGTw9ROQF4hL+xhLe7FHbXi+/oMkTbs7rv+D+Ssje74tu23C1SXX KMzLEYoT1rHxZNeS2uKLLdbuuzHegSZrM+mudNqrMdONUqpGpDgW9097iJOlVKngR6CR p03g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=precedence:content-disposition:content-transfer-encoding :mime-version:robot-unsubscribe:robot-id:git-commit-id:subject:to :references:in-reply-to:reply-to:cc:message-id:from:sender:date :arc-authentication-results; bh=0f2viviv9JTMPiztw2039ztWElBqqZ2cnjz4E6LgM+g=; b=WaPq3bLPumgHAzd2/cZ8PM0QzU9Bii+yuOzHB0oXfZwAd8ae/VTqgjT1EZ/h2cPimc DKon3ulfIyOH8/aVYOHInmkkDi8/4pon875jaaBkTzeldac8YlEWUoMaTP/Byz9yrs4U u16fDkTIvhYbe+eflkPNY9WJLAdoWmsSWkZsRWDyIqK2EgeffqSot+gtvy8fwEbiRpTO x4hGWm8w4UKwLj2SmqyjOavuY37ja/mjsohZXvKCKUnT9bei1Ty1hOVKc2Br1H/OLu7g Ko6byW3qhX7A9T8N42PZSIZTTBmGBwRXbsOujLz62xMrmyli797P7MWHmXexfBj/peCa AXXg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of tipbot@zytor.com designates 198.137.202.136 as permitted sender) smtp.mailfrom=tipbot@zytor.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of tipbot@zytor.com designates 198.137.202.136 as permitted sender) smtp.mailfrom=tipbot@zytor.com Date: Fri, 16 Mar 2018 04:55:12 -0700 Sender: tip tree robot From: tip-bot for Alexander Sergeyev Message-ID: Cc: qianyue.zj@alibaba-inc.com, tglx@linutronix.de, mingo@kernel.org, linux-kernel@vger.kernel.org, sergeev917@gmail.com, hpa@zytor.com, dwmw@amazon.co.uk, gregkh@linuxfoundation.org, me@kylehuey.com Reply-To: mingo@kernel.org, sergeev917@gmail.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, qianyue.zj@alibaba-inc.com, me@kylehuey.com, gregkh@linuxfoundation.org, hpa@zytor.com, dwmw@amazon.co.uk In-Reply-To: <20180313193856.GA8580@localhost.localdomain> References: <20180313193856.GA8580@localhost.localdomain> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/pti] x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist Git-Commit-ID: e3b3121fa8da94cb20f9e0c64ab7981ae47fd085 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1594852313515913739?= X-GMAIL-MSGID: =?utf-8?q?1595095203456121051?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Commit-ID: e3b3121fa8da94cb20f9e0c64ab7981ae47fd085 Gitweb: https://git.kernel.org/tip/e3b3121fa8da94cb20f9e0c64ab7981ae47fd085 Author: Alexander Sergeyev AuthorDate: Tue, 13 Mar 2018 22:38:56 +0300 Committer: Thomas Gleixner CommitDate: Fri, 16 Mar 2018 12:33:11 +0100 x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist In accordance with Intel's microcode revision guidance from March 6 MCU rev 0xc2 is cleared on both Skylake H/S and Skylake Xeon E3 processors that share CPUID 506E3. Signed-off-by: Alexander Sergeyev Signed-off-by: Thomas Gleixner Cc: Jia Zhang Cc: Greg Kroah-Hartman Cc: Kyle Huey Cc: David Woodhouse Link: https://lkml.kernel.org/r/20180313193856.GA8580@localhost.localdomain --- arch/x86/kernel/cpu/intel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 4aa9fd379390..c3af167d0a70 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -105,7 +105,7 @@ static void probe_xeon_phi_r3mwait(struct cpuinfo_x86 *c) /* * Early microcode releases for the Spectre v2 mitigation were broken. * Information taken from; - * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/microcode-update-guidance.pdf + * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf * - https://kb.vmware.com/s/article/52345 * - Microcode revisions observed in the wild * - Release note from 20180108 microcode release @@ -123,7 +123,6 @@ static const struct sku_microcode spectre_bad_microcodes[] = { { INTEL_FAM6_KABYLAKE_MOBILE, 0x09, 0x80 }, { INTEL_FAM6_SKYLAKE_X, 0x03, 0x0100013e }, { INTEL_FAM6_SKYLAKE_X, 0x04, 0x0200003c }, - { INTEL_FAM6_SKYLAKE_DESKTOP, 0x03, 0xc2 }, { INTEL_FAM6_BROADWELL_CORE, 0x04, 0x28 }, { INTEL_FAM6_BROADWELL_GT3E, 0x01, 0x1b }, { INTEL_FAM6_BROADWELL_XEON_D, 0x02, 0x14 },