From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 008C9C433E3 for ; Mon, 24 Aug 2020 17:00:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C587B206F0 for ; Mon, 24 Aug 2020 17:00:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598288436; bh=mHJBKvhnUJ/S+3nxeAcbt10YL0vWVfmMtJO8E7cMELs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jETxQO68huTTCQa0MgqOsEUraU5DKCaPJj7BSxbPpNfEQyv4XSvvfNT3frGnrGVkP Qfsr3Nd4YqfHZkCoX+HivXRUXYyV6aDdkRkb4ku9y3FvFcXTMI+BkoQqa4F0otehQB Yu0rRporDg71WXRpA074NoaB6XJOSK8xw/fPzXgM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726673AbgHXRAf (ORCPT ); Mon, 24 Aug 2020 13:00:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:40164 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728501AbgHXQio (ORCPT ); Mon, 24 Aug 2020 12:38:44 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7532722BED; Mon, 24 Aug 2020 16:38:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598287124; bh=mHJBKvhnUJ/S+3nxeAcbt10YL0vWVfmMtJO8E7cMELs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Eihs6L9uFR7BWc5oKGmQYyBta0C3BM6bffKO0wF60Q23vpR+MDzJ+yhUUVYwO7dKm BEfiqrSE2oK/T5avgM7bNI0pNa6LiuhEHrECfovqXqAXPZmDJzsikEXQCN8tCTbkV3 KcdsVoFgmfYbo1lQOa55J6v2Xvttl+eM1ljaXPeQ= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Marc Zyngier , Sai Prakash Ranjan , Stephen Boyd , Suzuki K Poulose , Will Deacon , Catalin Marinas , Sasha Levin , linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 38/38] arm64: Allow booting of late CPUs affected by erratum 1418040 Date: Mon, 24 Aug 2020 12:37:50 -0400 Message-Id: <20200824163751.606577-38-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200824163751.606577-1-sashal@kernel.org> References: <20200824163751.606577-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marc Zyngier [ Upstream commit bf87bb0881d0f59181fe3bbcf29c609f36483ff8 ] As we can now switch from a system that isn't affected by 1418040 to a system that globally is affected, let's allow affected CPUs to come in at a later time. Signed-off-by: Marc Zyngier Tested-by: Sai Prakash Ranjan Reviewed-by: Stephen Boyd Reviewed-by: Suzuki K Poulose Acked-by: Will Deacon Link: https://lore.kernel.org/r/20200731173824.107480-3-maz@kernel.org Signed-off-by: Catalin Marinas Signed-off-by: Sasha Levin --- arch/arm64/kernel/cpu_errata.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 0b2830379fe03..51462c59ab5da 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -917,6 +917,8 @@ const struct arm64_cpu_capabilities arm64_errata[] = { .desc = "ARM erratum 1418040", .capability = ARM64_WORKAROUND_1418040, ERRATA_MIDR_RANGE_LIST(erratum_1418040_list), + .type = (ARM64_CPUCAP_SCOPE_LOCAL_CPU | + ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU), }, #endif #ifdef CONFIG_ARM64_ERRATUM_1165522 -- 2.25.1