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([2a01:cb14:499:3d00:cd47:f651:9d80:157a]) by smtp.gmail.com with ESMTPSA id g14sm6087511wru.45.2021.01.20.10.11.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 Jan 2021 10:11:04 -0800 (PST) Subject: Re: Live patching on ARM64 To: "Madhavan T. Venkataraman" , Mark Rutland Cc: linux-arm-kernel@lists.infradead.org, Mark Brown , jpoimboe@redhat.com, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org References: <20210115123347.GB39776@C02TD0UTHF1T.local> <1cd6ab9a-74bc-258e-abf8-fcabba5e3484@redhat.com> <32ec8721-90d6-c93d-f6f3-926c8876235b@linux.microsoft.com> From: Julien Thierry Message-ID: <1f30b295-b307-ad61-b7f5-8cd55bc246d1@redhat.com> Date: Wed, 20 Jan 2021 19:11:03 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <32ec8721-90d6-c93d-f6f3-926c8876235b@linux.microsoft.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 1/19/21 4:19 PM, Madhavan T. Venkataraman wrote: > >> Sorry for the late reply. The last RFC for arm64 support in objtool is a bit old because it was preferable to split things into smaller series. >> >> I touched it much lately, so I'm picking it back up and will try to get a git branch into shape on a recent mainline (a few things need fixing since the last time I rebased it). >> >> I'll update you once I have something at least usable/presentable. >> >> Cheers, >> > I just sent some series the arm64 objtool support: - https://lkml.org/lkml/2021/1/20/791 - https://lore.kernel.org/linux-arm-kernel/20210120173800.1660730-1-jthierry@redhat.com/T/#t There are still some things missing, so if you want to investigate a more complete state I have a branch: $ git clone https://github.com/julien-thierry/linux.git -b objtoolxarm64-latest Let me know if there are any questions related to it. Cheers, -- Julien Thierry 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=-10.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 DA629C433E0 for ; Wed, 20 Jan 2021 18:13:10 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 99423233FA for ; Wed, 20 Jan 2021 18:13:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99423233FA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.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=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=i7D+7TY0fdQhIR8AkrviqO+oe64MhoJL3hqFDbCEu+w=; b=hR0s5cw8064C03bxgdui06lVd Ld7Jo8QJ6+NlEfN04vbb5gODf1g/mJqnV6jRkNsaxIIvhuv690uY8BsQBZVy36aaTZQql15QGqZam /HVsNWW6I5kApWRU900K9ZY0O9DQqXdOb4jCRo9opb+QpKBBILkLuyu8bmjorwyM8Ly/sjDpqNgM9 UD6VVHF2iywoca0RikKvuQSmosD4Z7XxG9wjA6oCUxEgRiBYXhvbwETK+uRp11mufNoA644B8UJcU AknplOuDRqu3C8NUKK8I1w6WIl8/n7Mou+sFjH9TAe56n35aGwQ6hh07HjHHu+ue3GY2mMVSuX+KV 9W5hHGG4Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2Hwy-00061A-5t; Wed, 20 Jan 2021 18:11:24 +0000 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2Hwk-0005yB-KR for linux-arm-kernel@lists.infradead.org; Wed, 20 Jan 2021 18:11:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611166269; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=r+rdpRSOqx0e5Um1NSM010H1HcWGo+y5f3OqsTp6gAE=; b=apuMhguiDHIyLqxuL/HNENyNCmW2grIJ1sprz0nUg8XBJKRADnGR9hS2wbhykcDySiLNSU Gyg3gQOF0xIQCDsNLu7c8Yxw8cu4/BXnamtHl4IHNea4hIu5rUzHVTz2wBaA5+xhVRK4G7 DuASbRrB98vyDxtIfjlFRbyC7XHjqo0= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-365-f99v-h8vP9-dYCgbHDRL-g-1; Wed, 20 Jan 2021 13:11:06 -0500 X-MC-Unique: f99v-h8vP9-dYCgbHDRL-g-1 Received: by mail-wm1-f71.google.com with SMTP id k67so1864333wmk.5 for ; Wed, 20 Jan 2021 10:11:06 -0800 (PST) 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=r+rdpRSOqx0e5Um1NSM010H1HcWGo+y5f3OqsTp6gAE=; b=L3H2A2mZBtBGsqHj71eW4fXcuDB1arV6gZkbxwNe8OQsqebZS5RV0DpHHIycW3+Xu4 tVUan1pE4zErF8FMO/ASVVgRfXxhK5cRPORr1z6Tf6Q6+X8CoGcrtK35TsHTBl/oU+sN lWEF5j1oojtRzM/c3SQFyYB9To1CmLzTXl9WipaICz35GMTl7L6ObBxT4CBaYy3l2+nP clUqqhc5so/D70JFCPh4fKnV319Wt+Lo78jqAmJq2j5UH8l8RNEiIRBpc0CQA70wYYna C9rQdFhgqR8gq4JqCJ9r9Lte4OUdRfsolMnNImhwKf3fFPqr+jxh11J7wuM0BZx9dpiu kg4g== X-Gm-Message-State: AOAM531ffvDIeHdICslJ6JJ+eI4XMUfzZHelNGpIVFN+tyt7BdYZ4KZu LYTT7gV0UwKQRfNkdavt01r8fKqlr9QJ5LgjiICuh3gZ4fN5vCrwzvJ2qKgS7mtXR2vv4wY/W/D g+m9jxgx7C2b6tQvwP6Uw61cXjXYQPhL+7w0= X-Received: by 2002:adf:fbd2:: with SMTP id d18mr10723062wrs.222.1611166264940; Wed, 20 Jan 2021 10:11:04 -0800 (PST) X-Google-Smtp-Source: ABdhPJx712Nf6ZKaG9Jo2uAax6LE/sAn/qhhDWtpCKz/UcyiauPjShsbvk20cwqythG/pVi2ehZ8BQ== X-Received: by 2002:adf:fbd2:: with SMTP id d18mr10723047wrs.222.1611166264802; Wed, 20 Jan 2021 10:11:04 -0800 (PST) Received: from ?IPv6:2a01:cb14:499:3d00:cd47:f651:9d80:157a? ([2a01:cb14:499:3d00:cd47:f651:9d80:157a]) by smtp.gmail.com with ESMTPSA id g14sm6087511wru.45.2021.01.20.10.11.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 Jan 2021 10:11:04 -0800 (PST) Subject: Re: Live patching on ARM64 To: "Madhavan T. Venkataraman" , Mark Rutland References: <20210115123347.GB39776@C02TD0UTHF1T.local> <1cd6ab9a-74bc-258e-abf8-fcabba5e3484@redhat.com> <32ec8721-90d6-c93d-f6f3-926c8876235b@linux.microsoft.com> From: Julien Thierry Message-ID: <1f30b295-b307-ad61-b7f5-8cd55bc246d1@redhat.com> Date: Wed, 20 Jan 2021 19:11:03 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <32ec8721-90d6-c93d-f6f3-926c8876235b@linux.microsoft.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jthierry@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210120_131110_741970_6255A5DE X-CRM114-Status: GOOD ( 17.58 ) 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: live-patching@vger.kernel.org, Mark Brown , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, jpoimboe@redhat.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, On 1/19/21 4:19 PM, Madhavan T. Venkataraman wrote: > >> Sorry for the late reply. The last RFC for arm64 support in objtool is a bit old because it was preferable to split things into smaller series. >> >> I touched it much lately, so I'm picking it back up and will try to get a git branch into shape on a recent mainline (a few things need fixing since the last time I rebased it). >> >> I'll update you once I have something at least usable/presentable. >> >> Cheers, >> > I just sent some series the arm64 objtool support: - https://lkml.org/lkml/2021/1/20/791 - https://lore.kernel.org/linux-arm-kernel/20210120173800.1660730-1-jthierry@redhat.com/T/#t There are still some things missing, so if you want to investigate a more complete state I have a branch: $ git clone https://github.com/julien-thierry/linux.git -b objtoolxarm64-latest Let me know if there are any questions related to it. Cheers, -- Julien Thierry _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel