From nobody Tue Feb 10 20:57:26 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1768839217139394.2907396107654; Mon, 19 Jan 2026 08:13:37 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vhrqy-0005Yy-FD; Mon, 19 Jan 2026 11:11:44 -0500 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 ) id 1vhrqv-0005WW-E9; Mon, 19 Jan 2026 11:11:41 -0500 Received: from sgoci-sdnproxy-4.icoremail.net ([129.150.39.64]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vhrqt-00028s-6o; Mon, 19 Jan 2026 11:11:41 -0500 Received: from prodtpl.icoremail.net (unknown [10.12.1.20]) by hzbj-icmmx-6 (Coremail) with SMTP id AQAAfwAH6CS0V25panw4Aw--.48494S2; Tue, 20 Jan 2026 00:11:32 +0800 (CST) Received: from phytium.com.cn (unknown [218.76.62.144]) by mail (Coremail) with SMTP id AQAAfwCX8O2mV25pCfIUAA--.37135S9; Tue, 20 Jan 2026 00:11:31 +0800 (CST) From: Tao Tang To: Paolo Bonzini , Fabiano Rosas , Laurent Vivier , Eric Auger , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org, Chen Baozi , Pierrick Bouvier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Mostafa Saleh , CLEMENT MATHIEU--DRIF , Tao Tang Subject: [RFC v9 6/8] tests/qtest: Add libqos iommu-testdev helpers Date: Tue, 20 Jan 2026 00:11:10 +0800 Message-Id: <20260119161112.3841386-7-tangtao1634@phytium.com.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260119161112.3841386-1-tangtao1634@phytium.com.cn> References: <20260119161112.3841386-1-tangtao1634@phytium.com.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAfwCX8O2mV25pCfIUAA--.37135S9 X-CM-SenderInfo: pwdqw3tdrrljuu6sx5pwlxzhxfrphubq/1tbiAQAABWltPrkFLgAAss Authentication-Results: hzbj-icmmx-6; spf=neutral smtp.mail=tangtao163 4@phytium.com.cn; X-Coremail-Antispam: 1Uk129KBjvJXoWxtw4DuF4fZFyDKFWfJrW3trb_yoW7Zr1fpF 1Uuayag3yxGF4fGrn3Gw10yw1rtr4kAF17uryfGas3ZrWxZry8Jr9rKFyY9r9rX3yUZF1r Zan0vFZ5WF1rZaDanT9S1TB71UUUUUJqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj DUYxn0WfASr-VFAU7a7-sFnT9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUU UUUUU Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=129.150.39.64; envelope-from=tangtao1634@phytium.com.cn; helo=sgoci-sdnproxy-4.icoremail.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1768839220008158500 Content-Type: text/plain; charset="utf-8" Introduce a libqos helper module for the iommu-testdev device used by qtests. This module provides some common functions to all IOMMU test cases using iommu-testdev. Wire the new sources into tests/qtest/libqos/meson.build so they are built as part of the qtest support library. Signed-off-by: Tao Tang --- MAINTAINERS | 5 ++ tests/qtest/libqos/meson.build | 3 + tests/qtest/libqos/qos-iommu-testdev.c | 82 ++++++++++++++++++++++++++ tests/qtest/libqos/qos-iommu-testdev.h | 43 ++++++++++++++ 4 files changed, 133 insertions(+) create mode 100644 tests/qtest/libqos/qos-iommu-testdev.c create mode 100644 tests/qtest/libqos/qos-iommu-testdev.h diff --git a/MAINTAINERS b/MAINTAINERS index 1abfec594f..ee8f6eb3af 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3578,6 +3578,11 @@ F: docs/devel/testing/qtest.rst X: tests/qtest/bios-tables-test* X: tests/qtest/migration-* =20 +QTest IOMMU helpers +M: Tao Tang +S: Maintained +F: tests/qtest/libqos/qos-iommu* + Device Fuzzing M: Alexander Bulekov R: Paolo Bonzini diff --git a/tests/qtest/libqos/meson.build b/tests/qtest/libqos/meson.build index 1ddaf7b095..9805d63a29 100644 --- a/tests/qtest/libqos/meson.build +++ b/tests/qtest/libqos/meson.build @@ -60,6 +60,9 @@ libqos_srcs =3D files( 'x86_64_pc-machine.c', 'riscv-virt-machine.c', 'loongarch-virt-machine.c', + + # SMMU: + 'qos-iommu-testdev.c', ) =20 if have_virtfs diff --git a/tests/qtest/libqos/qos-iommu-testdev.c b/tests/qtest/libqos/qo= s-iommu-testdev.c new file mode 100644 index 0000000000..91718a5673 --- /dev/null +++ b/tests/qtest/libqos/qos-iommu-testdev.c @@ -0,0 +1,82 @@ +/* + * IOMMU test device helpers for libqos qtests + * + * Copyright (c) 2026 Phytium Technology + * + * Author: + * Tao Tang + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "../libqtest.h" +#include "pci.h" +#include "qos-iommu-testdev.h" + +uint32_t qos_iommu_testdev_trigger_dma(QPCIDevice *dev, QPCIBar bar, + uint64_t iova, uint64_t gpa, + uint32_t len, uint32_t attrs) +{ + uint32_t result =3D ITD_DMA_RESULT_BUSY; + + qpci_io_writel(dev, bar, ITD_REG_DMA_GVA_LO, (uint32_t)iova); + qpci_io_writel(dev, bar, ITD_REG_DMA_GVA_HI, (uint32_t)(iova >> 32)); + qpci_io_writel(dev, bar, ITD_REG_DMA_GPA_LO, (uint32_t)gpa); + qpci_io_writel(dev, bar, ITD_REG_DMA_GPA_HI, (uint32_t)(gpa >> 32)); + qpci_io_writel(dev, bar, ITD_REG_DMA_LEN, len); + qpci_io_writel(dev, bar, ITD_REG_DMA_ATTRS, attrs); + + qpci_io_writel(dev, bar, ITD_REG_DMA_DBELL, ITD_DMA_DBELL_ARM); + qpci_io_readl(dev, bar, ITD_REG_DMA_TRIGGERING); + + for (int i =3D 0; i < 1000; i++) { + result =3D qpci_io_readl(dev, bar, ITD_REG_DMA_RESULT); + if (result !=3D ITD_DMA_RESULT_BUSY) { + break; + } + g_usleep(1000); + } + + if (result =3D=3D ITD_DMA_RESULT_BUSY) { + return ITD_DMA_ERR_TX_FAIL; + } + + return result; +} + +void qos_iommu_testdev_single_translation(const QOSIOMMUTestdevDmaCfg *dma, + void *opaque, + QOSIOMMUTestdevSetupFn setup_fn, + QOSIOMMUTestdevAttrsFn attrs_fn, + QOSIOMMUTestdevValidateFn valida= te_fn, + QOSIOMMUTestdevReportFn report_f= n, + uint32_t *dma_result_out) +{ + uint32_t config_result; + uint32_t dma_result; + uint32_t attrs_val; + + g_assert(dma); + g_assert(setup_fn); + g_assert(attrs_fn); + + config_result =3D setup_fn(opaque); + g_assert_cmpuint(config_result, =3D=3D, 0); + + attrs_val =3D attrs_fn(opaque); + dma_result =3D qos_iommu_testdev_trigger_dma(dma->dev, dma->bar, + dma->iova, dma->gpa, + dma->len, attrs_val); + if (dma_result_out) { + *dma_result_out =3D dma_result; + } + + if (report_fn) { + report_fn(opaque, dma_result); + } + + if (validate_fn) { + g_assert_true(validate_fn(opaque)); + } +} diff --git a/tests/qtest/libqos/qos-iommu-testdev.h b/tests/qtest/libqos/qo= s-iommu-testdev.h new file mode 100644 index 0000000000..3713b89ea4 --- /dev/null +++ b/tests/qtest/libqos/qos-iommu-testdev.h @@ -0,0 +1,43 @@ +/* + * IOMMU test device helpers for libqos qtests + * + * Copyright (c) 2026 Phytium Technology + * + * Author: + * Tao Tang + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef QTEST_LIBQOS_IOMMU_TESTDEV_H +#define QTEST_LIBQOS_IOMMU_TESTDEV_H + +#include "pci.h" +#include "hw/misc/iommu-testdev.h" + +typedef uint32_t (*QOSIOMMUTestdevSetupFn)(void *opaque); +typedef uint32_t (*QOSIOMMUTestdevAttrsFn)(void *opaque); +typedef bool (*QOSIOMMUTestdevValidateFn)(void *opaque); +typedef void (*QOSIOMMUTestdevReportFn)(void *opaque, uint32_t dma_result); + +typedef struct QOSIOMMUTestdevDmaCfg { + QPCIDevice *dev; + QPCIBar bar; + uint64_t iova; + uint64_t gpa; + uint32_t len; +} QOSIOMMUTestdevDmaCfg; + +uint32_t qos_iommu_testdev_trigger_dma(QPCIDevice *dev, QPCIBar bar, + uint64_t iova, uint64_t gpa, + uint32_t len, uint32_t attrs); + +void qos_iommu_testdev_single_translation(const QOSIOMMUTestdevDmaCfg *dma, + void *opaque, + QOSIOMMUTestdevSetupFn setup_fn, + QOSIOMMUTestdevAttrsFn attrs_fn, + QOSIOMMUTestdevValidateFn valida= te_fn, + QOSIOMMUTestdevReportFn report_f= n, + uint32_t *dma_result_out); + +#endif /* QTEST_LIBQOS_IOMMU_TESTDEV_H */ --=20 2.34.1