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=-6.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 543E6C433E2 for ; Wed, 9 Sep 2020 03:04:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E07582098B for ; Wed, 9 Sep 2020 03:04:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WUiHeb9P" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729843AbgIIDER (ORCPT ); Tue, 8 Sep 2020 23:04:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726369AbgIIDEP (ORCPT ); Tue, 8 Sep 2020 23:04:15 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2972C061573; Tue, 8 Sep 2020 20:04:14 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id c196so1012769pfc.0; Tue, 08 Sep 2020 20:04:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=C+IfSGe94xucF1QhV7eqJ/jdABpcZgXKQwlmBQeviCo=; b=WUiHeb9P7f0IMWcOhpKSdim26wdrz0WACI9DJVJS9Rf6ALf9F9cAk6XMc0pK8KO1ic YBTSW1kPediH4nT+Mbw19eVe2kh19tIigjpwfsLHNXh5mfTzb4iFHb6ORjRTSwaDkfvH CsrgnHiEeOsLSfwy1J1AarsWh8Ag7iv7YBXNNXOWcgdYA9Z7TqmZyrJoQcL5ExAsLgWE DmOcLzVpNyKFWvZY3IJUO+mU0qDedOnSkU5c9n9ee4hK/lhciJ9jC4pwvKV1xywuSR+4 IAlvMIyyy5x6plgIBiAyuHe7iWEHX8qKoPYDLqhxbsaJpVKhOLouZYLYXTOnSqdXsgBO rBVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=C+IfSGe94xucF1QhV7eqJ/jdABpcZgXKQwlmBQeviCo=; b=DRRok6kywTHAT6h+WU4uWndF7WcMn9NosdLRd7lFwyZc28Np5XCcStgiY21VMKZFBW HNpjriuZ84u8HgFvWXbjfUWPe/p1dLOJt+cPDPkDb0UIpJYfFA6XJx3ykXZS1W8m3xDk iTLzk6UFQXmElqNcO1hrGyCThPUglRchO34wP01t1cO8VlZVxPLABX8VcyQjdpRvQpEp EzjqLX2ALfIDsqy40er02VNogISDQA4Dhm+8UY2M4VQ+lGqTUAN1pJfI0TrS1yZCkIpB fzvoPw3+fYDpjwGqOafJVdsR/VxOmvcAZw50B8HyrHTPhOvqtXh5CnNMKGXywAgflwgm i8ag== X-Gm-Message-State: AOAM533UAnFMHp4lpZHScGFhQqFWcRE59GXw+5hcGxmf223ljQg2dVsw +jzBxPSQZZV4E3QFXsYMuHo= X-Google-Smtp-Source: ABdhPJwmc2Z0m7EDOxBIMnUo+vv6gABQGHJl1aUKYXH43c2UF//wN0cGJBCTsBPCw/kIMCqlXnpFMQ== X-Received: by 2002:a63:f70e:: with SMTP id x14mr1338922pgh.407.1599620654326; Tue, 08 Sep 2020 20:04:14 -0700 (PDT) Received: from [10.230.30.107] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id u10sm738927pfn.122.2020.09.08.20.04.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Sep 2020 20:04:13 -0700 (PDT) Subject: Re: [PATCH stable 4.19 v2 0/2] arm64: entry: Place an SB sequence following an ERET instruction To: linux-arm-kernel@lists.infradead.org Cc: Greg KH , Will Deacon , stable@vger.kernel.org, Catalin Marinas , Marc Zyngier , James Morse , Julien Thierry , Suzuki K Poulose , Mark Rutland , Mark Brown , Kristina Martsenko , Sami Tolvanen , Andrew Jones , Ard Biesheuvel , Nick Desaulniers , Fangrui Song , open list , "open list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)" References: <1598294112-19197-1-git-send-email-f.fainelli@gmail.com> From: Florian Fainelli Message-ID: <282ca27e-474c-ea1f-beba-52f361f16b20@gmail.com> Date: Tue, 8 Sep 2020 20:04:10 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.2.1 MIME-Version: 1.0 In-Reply-To: <1598294112-19197-1-git-send-email-f.fainelli@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/24/2020 11:35 AM, Florian Fainelli wrote: > Changes in v2: > > - included missing preliminary patch to define the SB barrier instruction > > Will Deacon (2): > arm64: Add support for SB barrier and patch in over DSB; ISB sequences > arm64: entry: Place an SB sequence following an ERET instruction Does anybody at ARM or Android care about those changes? If so, would you be willing to review these? Thanks > > arch/arm64/include/asm/assembler.h | 13 +++++++++++++ > arch/arm64/include/asm/barrier.h | 4 ++++ > arch/arm64/include/asm/cpucaps.h | 3 ++- > arch/arm64/include/asm/sysreg.h | 6 ++++++ > arch/arm64/include/asm/uaccess.h | 3 +-- > arch/arm64/include/uapi/asm/hwcap.h | 1 + > arch/arm64/kernel/cpufeature.c | 12 ++++++++++++ > arch/arm64/kernel/cpuinfo.c | 1 + > arch/arm64/kernel/entry.S | 2 ++ > arch/arm64/kvm/hyp/entry.S | 1 + > arch/arm64/kvm/hyp/hyp-entry.S | 4 ++++ > 11 files changed, 47 insertions(+), 3 deletions(-) > -- Florian