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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id AF800107BCEE for ; Sat, 14 Mar 2026 01:12:41 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w1DXn-00010C-KP; Fri, 13 Mar 2026 21:11:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <15fengyuan@gmail.com>) id 1w1DXm-000100-IJ for qemu-devel@nongnu.org; Fri, 13 Mar 2026 21:11:54 -0400 Received: from mail-pj1-x1029.google.com ([2607:f8b0:4864:20::1029]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <15fengyuan@gmail.com>) id 1w1DXk-00059H-Vb for qemu-devel@nongnu.org; Fri, 13 Mar 2026 21:11:54 -0400 Received: by mail-pj1-x1029.google.com with SMTP id 98e67ed59e1d1-35b85613f3fso454879a91.1 for ; Fri, 13 Mar 2026 18:11:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773450711; x=1774055511; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=NFPoBFJkK5i3DJKfu4yDGSGfVFxkXleFqejv/cpH+vU=; b=EjW1TCmBCdCZv6umI5H3yitzNw3LYhuu1etrgaI6BhxgG3VtT/k31OdH8yk8/AKpjf CzaoGHSu0TvgcBTcD45kdGgu/kyeDhsDB3ts5/RaA+gexukt1kPMUJbLBonjAOMLeLLP cszjdUxxubZ6lIwhqQMrG+Z0Bg73Xx2/ZeuLEddiDpmxx3T1qq3zSmP+uPZLZnjCgstM 8jY/r8Ab5cDg4b2FjKdc5TR4H/NqqpJObQKgr6H6eXO8WKcP2ofNXPnU31hraocwQbKq kv3C0dv7BSt+dnUoaUrUWSsvgWz8Sq+ZNQBy6dikPIBCrGH7QOIHOB5T+CCYFwPrzK34 GmEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773450711; x=1774055511; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=NFPoBFJkK5i3DJKfu4yDGSGfVFxkXleFqejv/cpH+vU=; b=qvgHKK5CP35LD25IbVqkkJAmKmdYZxmgdRMq5s54nhMbHtttIDTojN7FnFo/iRu38B hL/nSn9Vxr/vSzITfgYw+Yxov4ioMBpGPO8Wmq7pRTZsyaE8HWIIAysH4MRNEOFBw8j/ f8N6A28A57nyyzZ3f3/9FyFgXbUGLxHmRJVS37w1tEDp6MDjlOGtEwdC/8yF5/TYjuW7 rcOXGIJmvm4UT4hjwH/5yVRN72Q/wEOrzi7dLhlHdaUCGjHvD/FQ/ATtr/Zlj24ZKrhk WILWPcl3rYrJlvj4A7tUuF6fWnOvKrQ8uMsHAyHtGsaXCOgupbLOzYdLDcCWhhWWJIMz zxhw== X-Gm-Message-State: AOJu0Yxpyrhi/E/Pp7C/vRi91y4a5HRLInIMr0DdBhopKeo7mZj1m+KT bWOtwsDBycwuOGb2qOyhz5suEYlNSgbYtvaLtdwShHBlAehxKU3oizC0 X-Gm-Gg: ATEYQzySD1b3tX0P5oSvv56hifJxxQ49zKo/34tj8aatrxuJ6cO2QAIWtBFIg6FploI JBt0r+loY3IBdwz1r2K2O+l6TzFoNHtTwGAGg5pFT1xWHJGx/Wco0LyeKiVevdoXCWCbbjlqucR kGe3TRl4BMPyxs/dPmort3r57/XeGNWI5rMJReoKMu3RiiSEI7B3IylaBatCbvmCm6Rp0iBboFC gTDXASwCO0HaFBWdtEQtMQE5qTwWcdOvOep43fICWiJpuz9zQLlr6Z4JwmxUBzklUF1VtIZLTp/ cAzWOLweKa8vQeXIdYGCnsLkyuaqcSuMe+ePmSVYkTYxr6UcSOqj7fpeGJPQmduWXq8Gtkxs7KL Il4kw9pjUsFfsZ7J0d3r0JEEKly8Bw7HVBLBadU2Ifmx7bh7hF/C8vWvw+tMjYB1OyHQxwlHELa Lqx/l6YL93HDMoQswSnu072EbxqfE= X-Received: by 2002:a17:90b:28ce:b0:359:8190:eede with SMTP id 98e67ed59e1d1-35a21e795e2mr4814748a91.9.1773450711122; Fri, 13 Mar 2026 18:11:51 -0700 (PDT) Received: from orion-o6.tail020997.ts.net ([2408:8352:441:f661::1008]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35a2454a7bdsm1248545a91.8.2026.03.13.18.11.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Mar 2026 18:11:50 -0700 (PDT) From: Fengyuan Yu <15fengyuan@gmail.com> To: Tao Tang , "Michael S. Tsirkin" , Jason Wang , Yi Liu , =?UTF-8?q?Cl=C3=A9ment=20Mathieu--Drif?= , Paolo Bonzini , Zhao Liu , Fabiano Rosas , Laurent Vivier Cc: qemu-devel@nongnu.org, Chao Liu , Fengyuan Yu <15fengyuan@gmail.com> Subject: [PATCH v2 0/2] tests/qtest: Add Intel IOMMU bare-metal test using iommu-testdev Date: Sat, 14 Mar 2026 09:11:35 +0800 Message-Id: X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1029; envelope-from=15fengyuan@gmail.com; helo=mail-pj1-x1029.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, FREEMAIL_FROM=0.001, 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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi, This patch series adds a bare-metal qtest for the Intel IOMMU (VT-d) using the iommu-testdev framework. The test exercises address translation paths without requiring a full guest OS boot. Motivation ---------- The Intel IOMMU implementation in QEMU supports various translation modes. Currently, comprehensive testing of these translation paths requires booting a full guest OS with appropriate drivers, which is time-consuming and makes regression testing difficult. This new test fills that gap by using iommu-testdev to trigger DMA transactions and validate the IOMMU's translation logic directly. Test Coverage ------------- The new test provides: - Legacy pass-through mode (identity mapping) - Legacy translated mode with 4-level second-level page table walks - Scalable pass-through mode (PGTT=100b) - Scalable second-level translation mode (PGTT=010b) - Scalable first-level translation mode (PGTT=001b) - Root/Context Entry, PASID Directory/Table Entry configuration - Complete 48-bit address space translation - End-to-end DMA verification with memory validation Testing ------- QTEST_QEMU_BINARY=./build/qemu-system-x86_64 \ ./build/tests/qtest/iommu-intel-test --tap -k Changes v1 -> v2 ---------------- - Rebase onto latest upstream to resolve compilation errors - Add scalable translation mode tests (SLT, FLT, PassThrough) - Add spec-aligned register field comments for improved readability Thanks, Fengyuan Fengyuan Yu (2): tests/qtest/libqos: Add Intel IOMMU helper library tests/qtest: Add Intel IOMMU bare-metal test MAINTAINERS | 6 + tests/qtest/iommu-intel-test.c | 215 +++++++++++++ tests/qtest/libqos/meson.build | 3 + tests/qtest/libqos/qos-intel-iommu.c | 454 +++++++++++++++++++++++++++ tests/qtest/libqos/qos-intel-iommu.h | 191 +++++++++++ tests/qtest/meson.build | 2 + 6 files changed, 871 insertions(+) create mode 100644 tests/qtest/iommu-intel-test.c create mode 100644 tests/qtest/libqos/qos-intel-iommu.c create mode 100644 tests/qtest/libqos/qos-intel-iommu.h -- 2.39.5