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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,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 B3BE8C433E0 for ; Wed, 17 Mar 2021 09:30:54 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 42DE764F3C for ; Wed, 17 Mar 2021 09:30:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 42DE764F3C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47948 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lMSVx-0003Hj-4w for qemu-devel@archiver.kernel.org; Wed, 17 Mar 2021 05:30:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46550) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lMSTs-0001ks-Bh for qemu-devel@nongnu.org; Wed, 17 Mar 2021 05:28:44 -0400 Received: from mail-pf1-x435.google.com ([2607:f8b0:4864:20::435]:42679) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lMSTp-00011d-Al for qemu-devel@nongnu.org; Wed, 17 Mar 2021 05:28:44 -0400 Received: by mail-pf1-x435.google.com with SMTP id 11so699153pfn.9 for ; Wed, 17 Mar 2021 02:28:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=4IJgA9xHiUTgoFzKaPr1USI3SuBFKxXuOZ+JQdWjg28=; b=XdWF/ndwCYQcUCkf338CKMIXBzDZ8UrGV7y0cHSb03IZdDl8I3IJ40bsJxnD6sPnhG znWTodAwenhOGo33qhI/Sj1FyXJq2SlVLCOBT28R1UNjgT1cbk8vzQoffWnOpwzvCZzA 3TI03jzQ80WGIqqGfozQ8sG+b84tcQ1UPUJJwEI5MChfBRk13ZhWFALsWq0jMIrW3h6d m+QRMPc8HZCDRDQrim5upzYQbzy77Tmkb+O/7eQP3V3FjCT9wCwMJ/HAEKwYPYPp7DK/ ZaZlhKckP33rRpJHo4whGpTgmp3YzBtM4N+FN5n5aft8CjLK9IRaL+Ip4myMmi80cEyr Cx2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=4IJgA9xHiUTgoFzKaPr1USI3SuBFKxXuOZ+JQdWjg28=; b=IlPnNsUEXcBnuieM9NvrzfRlA8eQyKzKuz+2fJhE76/1fFmBkCYBkk7bB6rCz6/Fx8 2IVdVhhKafPVWeQr6geZcayYtjea0qoD6/Sse9PQo629adPmi9jWdLFxhUHtWAhozfAH VjD2Vf4c8J8R1cSuPsDRujQuKMUkQBsMUejkzjT8dLYPJW0XqtLb4OOUOCieR4gizgXd pFCmQ1SBmZbOJCnOuXwCQe2YArrpJ5dDX4bNKOo9WQLdZiLobpYFYzwicAInqi1/zmxW PqKkAMamkLFXEb9AcXXJFsBjAIA6aOwGQ0I52gSxh1s8RHqpFYpp5ldr+Vle7sqdY9xJ 7oFg== X-Gm-Message-State: AOAM530FoACPUo7SGHrfMIaPUCiYdHmpZqijJ2i7h3yfA3ZIVb3k9muy /tNXgt0KQW7gCmCbkZSqMHOv X-Google-Smtp-Source: ABdhPJzhdE+f779hN2rPV/YLBUvg3lRKPn8u12T64eeUu32G0VCBMiI12yH67Cf4eItDPdpc9V2PDQ== X-Received: by 2002:a63:9219:: with SMTP id o25mr1848911pgd.112.1615973319250; Wed, 17 Mar 2021 02:28:39 -0700 (PDT) Received: from localhost.localdomain ([147.75.106.138]) by smtp.gmail.com with ESMTPSA id r30sm18630163pgu.86.2021.03.17.02.28.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Mar 2021 02:28:38 -0700 (PDT) From: Haibo Xu To: dgilbert@redhat.com, quintela@redhat.com, drjones@redhat.com, richard.henderson@linaro.org Subject: [RFC PATCH v2 0/5] target/arm: Add MTE support to KVM guest Date: Wed, 17 Mar 2021 09:28:19 +0000 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=haibo.xu@linaro.org; helo=mail-pf1-x435.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, philmd@redhat.com, qemu-devel@nongnu.org, Haibo Xu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This version is rebased against kernel patches v10, and only header files are updated since v1[1]. This series add support for MTE(Memory Tagging Extension)[2] in KVM guest. It's based on Steven Price's kernel KVM patches v10[3], and has been tested to ensure that test case[4] can be passed in a KVM guest. Basic pre-copy migration test also passed between two MTE enabled kvm guest. This is a RFC patch series becuase: (1) Need to add some arm MTE specific codes to the ram migration loop. There may be better way to do that in a more abstract way. (2) Only pre-copy migration is supported and tested currently, post-copy as well as compress/zero page migration are still WIP. All kinds of feedbacks are very welcomed, especially for the migration support. Note: (1) To support MTE migration, tags for one page are appended to the page data during ram save iteration which make it easier to sync the page data and tags. [1] https://lore.kernel.org/qemu-devel/cover.1612747873.git.haibo.xu@linaro.org/ [2] https://community.arm.com/developer/ip-products/processors/b/ processors-ip-blog/posts/enhancing-memory-safety [3] https://patchew.org/QEMU/20210312151902.17853-1-steven.price@arm.com/ [4] https://elixir.bootlin.com/linux/latest/source/Documentation/ arm64/memory-tagging-extension.rst Haibo Xu (5): Update Linux headers with new MTE support Add basic MTE support to KVM guest Add APIs to get/set MTE tags Add migration support for KVM guest with MTE Enable the MTE support for KVM guest hw/arm/virt.c | 44 +++++++++++++------- include/hw/arm/virt.h | 2 + include/migration/misc.h | 1 + linux-headers/linux/kvm.h | 16 ++++++++ migration/ram.c | 86 ++++++++++++++++++++++++++++++++++++++- target/arm/cpu.c | 2 +- target/arm/kvm.c | 9 ++++ target/arm/kvm64.c | 31 ++++++++++++++ target/arm/kvm_arm.h | 2 + 9 files changed, 177 insertions(+), 16 deletions(-) -- 2.17.1