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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 63475C4321A for ; Fri, 19 Mar 2021 10:03:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4990164EF6 for ; Fri, 19 Mar 2021 10:03:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230289AbhCSKC4 (ORCPT ); Fri, 19 Mar 2021 06:02:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229975AbhCSKCZ (ORCPT ); Fri, 19 Mar 2021 06:02:25 -0400 Received: from mail-qk1-x74a.google.com (mail-qk1-x74a.google.com [IPv6:2607:f8b0:4864:20::74a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8FF4DC06175F for ; Fri, 19 Mar 2021 03:02:24 -0700 (PDT) Received: by mail-qk1-x74a.google.com with SMTP id k68so33545958qke.2 for ; Fri, 19 Mar 2021 03:02:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=Kj+I8XUSYAKjeGpLxIgkzojVoc6Q8aAjQUqoardRlMXHKkE1x3Hp6aM8/W0NWM3wS6 x07KjsT3mubuXhnLmeMXsPrp95J27xOrKgqQaicqp04hJjOUrQbl4wZ1d3l2EuE97uNA KFdgzB6H1vfbT0rsB22AEOJFCzusxBM9LzoPnaWfcjUp3azDpVTiPRIxfaOg1PKXBhaH bYUn792zhUYnV0jBul2s5F4ZYllrirEigoIZnTFRQCrRyv492wSQXt/AYK5VB5/4OyuC x/WjFtLj0nEM7wDemTUmCdSj2rgipSR0u85xE4dOQwbcN0r87clqymHWiUiL4b06S1qy UjWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=AEHnVIZ2kVv4hgZSgkbpiQPhfi59WhgzOFM/+6Gqo9rBhvtixW+RV87cyi1oZ/1oQ3 6Dp/3wfAwkE7PbJvEr4Wos+VJ4aozN8XXi9kV0H/Tbwf9hPI1lmKyK3jPBZqKaiN3Vgo BZ+UfsJq9hWcZH0XEpiRQMsc3nMWYbQ9a9Q3qiQeuieVSF7nCx9p8g8QcEcMPABkZQBl 8RkBGRb6Wp5kO2qJMNsjnPN2cz1vfh6uo0iHkzTUYZYbY1yVaP7UYAwG3ymXGbQTNEz7 tc65jvxr8speP1DuBpBy03E6ZBiVT61mUv0rb4vEEOvxRInOaO2+Qt9Et7fnxxL+KkSY Wk/g== X-Gm-Message-State: AOAM532ZtyLW48Pe+vjjImOsf8xwdm1nJ41WZDOsS3FnUaHTKPC/XKM/ RDihp/NUplFVp43Sp0eQSpDT9jNtn5Iw X-Google-Smtp-Source: ABdhPJwN/h3k2TuK4CzLkm34ikKDRS783RduDg48Qy26uhc+DzE4q7IWFs4e3z0EnUvFZoGZQ4HMayCWmea/ X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a0c:d7d2:: with SMTP id g18mr8356263qvj.42.1616148143759; Fri, 19 Mar 2021 03:02:23 -0700 (PDT) Date: Fri, 19 Mar 2021 10:01:24 +0000 In-Reply-To: <20210319100146.1149909-1-qperret@google.com> Message-Id: <20210319100146.1149909-17-qperret@google.com> Mime-Version: 1.0 References: <20210319100146.1149909-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v6 16/38] arm64: asm: Provide set_sctlr_el2 macro From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com, qperret@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We will soon need to turn the EL2 stage 1 MMU on and off in nVHE protected mode, so refactor the set_sctlr_el1 macro to make it usable for that purpose. Acked-by: Will Deacon Suggested-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/include/asm/assembler.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index ca31594d3d6c..fb651c1f26e9 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -676,11 +676,11 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .endm /* - * Set SCTLR_EL1 to the passed value, and invalidate the local icache + * Set SCTLR_ELx to the @reg value, and invalidate the local icache * in the process. This is called when setting the MMU on. */ -.macro set_sctlr_el1, reg - msr sctlr_el1, \reg +.macro set_sctlr, sreg, reg + msr \sreg, \reg isb /* * Invalidate the local I-cache so that any instructions fetched @@ -692,6 +692,14 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU isb .endm +.macro set_sctlr_el1, reg + set_sctlr sctlr_el1, \reg +.endm + +.macro set_sctlr_el2, reg + set_sctlr sctlr_el2, \reg +.endm + /* * Check whether to yield to another runnable task from kernel mode NEON code * (which runs with preemption disabled). -- 2.31.0.rc2.261.g7f71774620-goog 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=-16.6 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 5354BC433E6 for ; Fri, 19 Mar 2021 10:02:28 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id F286F64F45 for ; Fri, 19 Mar 2021 10:02:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F286F64F45 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id A678A4B686; Fri, 19 Mar 2021 06:02:27 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CY6SRJLjUNyO; Fri, 19 Mar 2021 06:02:26 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B7B4E4B6F0; Fri, 19 Mar 2021 06:02:26 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 7F7414B685 for ; Fri, 19 Mar 2021 06:02:25 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GVAnoTddRgGM for ; Fri, 19 Mar 2021 06:02:24 -0400 (EDT) Received: from mail-qv1-f73.google.com (mail-qv1-f73.google.com [209.85.219.73]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 3066E4B667 for ; Fri, 19 Mar 2021 06:02:24 -0400 (EDT) Received: by mail-qv1-f73.google.com with SMTP id bt20so22809836qvb.0 for ; Fri, 19 Mar 2021 03:02:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=Kj+I8XUSYAKjeGpLxIgkzojVoc6Q8aAjQUqoardRlMXHKkE1x3Hp6aM8/W0NWM3wS6 x07KjsT3mubuXhnLmeMXsPrp95J27xOrKgqQaicqp04hJjOUrQbl4wZ1d3l2EuE97uNA KFdgzB6H1vfbT0rsB22AEOJFCzusxBM9LzoPnaWfcjUp3azDpVTiPRIxfaOg1PKXBhaH bYUn792zhUYnV0jBul2s5F4ZYllrirEigoIZnTFRQCrRyv492wSQXt/AYK5VB5/4OyuC x/WjFtLj0nEM7wDemTUmCdSj2rgipSR0u85xE4dOQwbcN0r87clqymHWiUiL4b06S1qy UjWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=D99kd+t7NLZos+X20KU8irhtc7EoOAtZq0NZDSnVWeUxX2YyeG7Sr4T/5lTdYjEn/L yOSBHATSRbrrT89LusKCAxl7wLpcJaPti1wYfszEO2YarB0UMfiHTJoh3B+2E1IwoPDJ nPYKK8WblajpefE4a5DPQbP/lUR2ZUgqnFCAhzMCLE3+upFin4ze5QFsyzZmFh6LGk1V q+0sm8bIW2dzO5gK2j7Ta3tYVcdmOkiRZPyh91zCUEZy/G00Kks6MrL6fisb14pyy7VB HFKcFEJIIF6rtgryxTSFLYHK6ueHkLhxCz0Z/UlA45srJXhKo4hjBu9Dl8mT+HpNLU4S 1kiw== X-Gm-Message-State: AOAM532DB0JAtaMdsKcYEMYDVMFfkYF6ZAtfI/qeaZV51IIP7BDXGgBU SuQA8bMIWgi8C9fa8gXLtJalMSKR72Ss X-Google-Smtp-Source: ABdhPJwN/h3k2TuK4CzLkm34ikKDRS783RduDg48Qy26uhc+DzE4q7IWFs4e3z0EnUvFZoGZQ4HMayCWmea/ X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a0c:d7d2:: with SMTP id g18mr8356263qvj.42.1616148143759; Fri, 19 Mar 2021 03:02:23 -0700 (PDT) Date: Fri, 19 Mar 2021 10:01:24 +0000 In-Reply-To: <20210319100146.1149909-1-qperret@google.com> Message-Id: <20210319100146.1149909-17-qperret@google.com> Mime-Version: 1.0 References: <20210319100146.1149909-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v6 16/38] arm64: asm: Provide set_sctlr_el2 macro From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, tabba@google.com, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu We will soon need to turn the EL2 stage 1 MMU on and off in nVHE protected mode, so refactor the set_sctlr_el1 macro to make it usable for that purpose. Acked-by: Will Deacon Suggested-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/include/asm/assembler.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index ca31594d3d6c..fb651c1f26e9 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -676,11 +676,11 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .endm /* - * Set SCTLR_EL1 to the passed value, and invalidate the local icache + * Set SCTLR_ELx to the @reg value, and invalidate the local icache * in the process. This is called when setting the MMU on. */ -.macro set_sctlr_el1, reg - msr sctlr_el1, \reg +.macro set_sctlr, sreg, reg + msr \sreg, \reg isb /* * Invalidate the local I-cache so that any instructions fetched @@ -692,6 +692,14 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU isb .endm +.macro set_sctlr_el1, reg + set_sctlr sctlr_el1, \reg +.endm + +.macro set_sctlr_el2, reg + set_sctlr sctlr_el2, \reg +.endm + /* * Check whether to yield to another runnable task from kernel mode NEON code * (which runs with preemption disabled). -- 2.31.0.rc2.261.g7f71774620-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 E6E3AC433E0 for ; Fri, 19 Mar 2021 10:08:31 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 CA09D60235 for ; Fri, 19 Mar 2021 10:08:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA09D60235 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Cc:To:From:Subject:References:Mime-Version: Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Y7tMAnWMHLxBZ06/pQSQiLEz8XUYiq+1wtvG16NPao8=; b=aeCyrfIACUjLWF JpJ7+LcDWC44DuELO//AhR7RLxgS1e9Cagd6TDSUWEtT38B61sn6vr1GIg8c6qcM36X7Crx4zmLKB TYCOXFrqIfCIxnGxcfXaaBHFCQkApn4nYWXsPyhi5J4x2jB9YaIzUtampFeUgpxFVmDHWAhBsF8+V Me/ha6HvLNo7wpf/Xx85soqywRGo3to9KVZ9SwjpkoYD8HfWIM6j1WL8oJPcm9Bc3gJZT2/xiROYp sWF7UFwDdgcWQfWnNHQpxjYo+awLvmaWWaH5KajIl5zB6MOMUL0kPy/WmgcyGSG3+7wORwkMfAI4U pIzjwYLhYkyMnEasmNTg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lNC1k-0072HZ-MY; Fri, 19 Mar 2021 10:06:44 +0000 Received: from mail-qv1-xf49.google.com ([2607:f8b0:4864:20::f49]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lNBxZ-0070FE-Jk for linux-arm-kernel@lists.infradead.org; Fri, 19 Mar 2021 10:02:27 +0000 Received: by mail-qv1-xf49.google.com with SMTP id z5so3733520qvo.16 for ; Fri, 19 Mar 2021 03:02:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=Kj+I8XUSYAKjeGpLxIgkzojVoc6Q8aAjQUqoardRlMXHKkE1x3Hp6aM8/W0NWM3wS6 x07KjsT3mubuXhnLmeMXsPrp95J27xOrKgqQaicqp04hJjOUrQbl4wZ1d3l2EuE97uNA KFdgzB6H1vfbT0rsB22AEOJFCzusxBM9LzoPnaWfcjUp3azDpVTiPRIxfaOg1PKXBhaH bYUn792zhUYnV0jBul2s5F4ZYllrirEigoIZnTFRQCrRyv492wSQXt/AYK5VB5/4OyuC x/WjFtLj0nEM7wDemTUmCdSj2rgipSR0u85xE4dOQwbcN0r87clqymHWiUiL4b06S1qy UjWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=4ECUgkoGREkKZOm9t4R+RTCdTGWy+OUrTPPjtPvrKJ0=; b=h24l/V0s5VXttHF7T41My+FOdM9Q5lxnmntcgf9bFOfZRSemf/Ixkaj5/qXhxVWtZb RH0i1X9+qTEDuxYMgz03HVx64N30gsxk5JkYoX+ZOdORYkTezobaKg+A4r1FCfHQirBt Yq9yGwYmNX+gTrLWUcE/Cgpg47+90Cs0wheGDGXM+TRbpYvqsupViLbVEFa5uzBHMnLc KWC1fkB7aVjWQE0qynij9VsxQJn5YYEiSXnn/FDqyfNjeGTk0yz5znh7bx6l0MmNvFds t11Z0DnGskmirmm0xTyEopgOXQCVZxyxk91ZsYEstj40pKqHhy4nQmLkhRy4FhtyRMM1 o1vg== X-Gm-Message-State: AOAM532KvkMVVhgrLK/8o3NEAKeIsfQBCaozrOyLfv5wTezAyCcQij3a 8yRY3mgk6UAor1uWkhNdM1w3X26ZXyAz X-Google-Smtp-Source: ABdhPJwN/h3k2TuK4CzLkm34ikKDRS783RduDg48Qy26uhc+DzE4q7IWFs4e3z0EnUvFZoGZQ4HMayCWmea/ X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a0c:d7d2:: with SMTP id g18mr8356263qvj.42.1616148143759; Fri, 19 Mar 2021 03:02:23 -0700 (PDT) Date: Fri, 19 Mar 2021 10:01:24 +0000 In-Reply-To: <20210319100146.1149909-1-qperret@google.com> Message-Id: <20210319100146.1149909-17-qperret@google.com> Mime-Version: 1.0 References: <20210319100146.1149909-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v6 16/38] arm64: asm: Provide set_sctlr_el2 macro From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com, qperret@google.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210319_100225_728100_2D1489BF X-CRM114-Status: GOOD ( 11.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org We will soon need to turn the EL2 stage 1 MMU on and off in nVHE protected mode, so refactor the set_sctlr_el1 macro to make it usable for that purpose. Acked-by: Will Deacon Suggested-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/include/asm/assembler.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index ca31594d3d6c..fb651c1f26e9 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -676,11 +676,11 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .endm /* - * Set SCTLR_EL1 to the passed value, and invalidate the local icache + * Set SCTLR_ELx to the @reg value, and invalidate the local icache * in the process. This is called when setting the MMU on. */ -.macro set_sctlr_el1, reg - msr sctlr_el1, \reg +.macro set_sctlr, sreg, reg + msr \sreg, \reg isb /* * Invalidate the local I-cache so that any instructions fetched @@ -692,6 +692,14 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU isb .endm +.macro set_sctlr_el1, reg + set_sctlr sctlr_el1, \reg +.endm + +.macro set_sctlr_el2, reg + set_sctlr sctlr_el2, \reg +.endm + /* * Check whether to yield to another runnable task from kernel mode NEON code * (which runs with preemption disabled). -- 2.31.0.rc2.261.g7f71774620-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel