From patchwork Wed Sep 25 11:19:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 11160465 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 91D371709 for ; Wed, 25 Sep 2019 11:20:42 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6FC3421D7C for ; Wed, 25 Sep 2019 11:20:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="sE6pcpXB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6FC3421D7C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=F+N0eYvzZ0gHLD2HOYolrZTZY4nqfhqjJ4HxiCoufis=; b=sE6pcpXBWCv16Y 2KnYnTjNJ2g54YrAak1YKmJZB29/j8VMcIKn8Nh/q9dmV3VxCyMHuh02YsMvbx58ueBqLgMeU8w5C mVElu4mKtqHuh7OPVhCwqzeD2t/BPJWdreniIE5AuDOqOQ3iEILk1+ITTRaw7Rfpes1NUOIgqNOEl 4g73HawHVY1atQwubzEc/TXZ7j9I6pnohQbfWa0c+uj8r1TJjOMwFOOy5z8y2Qt06XMPJ5/lwa3IR fk0RNv9xP0m4JCe62ikliFkf0sBQjuFm8+Eu/E0RE0J5N9wSDt0GdYkVK26VaxfaLWmF1GbTOMtPB c155tW+6+WiKLz8TVPcw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iD5LZ-0006c5-MC; Wed, 25 Sep 2019 11:20:37 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iD5Kv-0005DZ-Nb for linux-arm-kernel@lists.infradead.org; Wed, 25 Sep 2019 11:19:58 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F08381596; Wed, 25 Sep 2019 04:19:56 -0700 (PDT) Received: from filthy-habits.cambridge.arm.com (filthy-habits.cambridge.arm.com [10.1.197.61]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B7D5D3F694; Wed, 25 Sep 2019 04:19:55 -0700 (PDT) From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH 1/5] arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions Date: Wed, 25 Sep 2019 12:19:37 +0100 Message-Id: <20190925111941.88103-2-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190925111941.88103-1-maz@kernel.org> References: <20190925111941.88103-1-maz@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190925_041957_808651_EF2C56DF X-CRM114-Status: GOOD ( 11.14 ) X-Spam-Score: 1.0 (+) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (1.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 1.0 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) 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 , Suzuki K Poulose , Catalin Marinas , James Morse , Will Deacon , Julien Thierry Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Rework the EL2 vector hardening that is only selected for A57 and A72 so that the table can also be used for ARM64_WORKAROUND_1319367. Signed-off-by: Marc Zyngier Reviewed-by: Suzuki K Poulose Acked-by: Catalin Marinas --- arch/arm64/include/asm/cpucaps.h | 3 ++- arch/arm64/kernel/cpu_errata.c | 13 ++++++++++--- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h index f19fe4b9acc4..277e37b2a513 100644 --- a/arch/arm64/include/asm/cpucaps.h +++ b/arch/arm64/include/asm/cpucaps.h @@ -52,7 +52,8 @@ #define ARM64_HAS_IRQ_PRIO_MASKING 42 #define ARM64_HAS_DCPODP 43 #define ARM64_WORKAROUND_1463225 44 +#define ARM64_WORKAROUND_1319367 45 -#define ARM64_NCAPS 45 +#define ARM64_NCAPS 46 #endif /* __ASM_CPUCAPS_H */ diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 1e43ba5c79b7..1640c988d5a1 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -623,9 +623,9 @@ check_branch_predictor(const struct arm64_cpu_capabilities *entry, int scope) return (need_wa > 0); } -#ifdef CONFIG_HARDEN_EL2_VECTORS +#if defined(CONFIG_HARDEN_EL2_VECTORS) || defined(CONFIG_ARM64_ERRATUM_1319367) -static const struct midr_range arm64_harden_el2_vectors[] = { +static const struct midr_range ca57_a72[] = { MIDR_ALL_VERSIONS(MIDR_CORTEX_A57), MIDR_ALL_VERSIONS(MIDR_CORTEX_A72), {}, @@ -819,7 +819,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = { { .desc = "EL2 vector hardening", .capability = ARM64_HARDEN_EL2_VECTORS, - ERRATA_MIDR_RANGE_LIST(arm64_harden_el2_vectors), + ERRATA_MIDR_RANGE_LIST(ca57_a72), }, #endif { @@ -851,6 +851,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = { .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, .matches = has_cortex_a76_erratum_1463225, }, +#endif +#ifdef CONFIG_ARM64_ERRATUM_1319367 + { + .desc = "ARM erratum 1319367", + .capability = ARM64_WORKAROUND_1319367, + ERRATA_MIDR_RANGE_LIST(ca57_a72), + }, #endif { }