From patchwork Thu Sep 28 07:15:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13402186 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35A43CE7B04 for ; Thu, 28 Sep 2023 07:15:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231518AbjI1HPu (ORCPT ); Thu, 28 Sep 2023 03:15:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52706 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231372AbjI1HPo (ORCPT ); Thu, 28 Sep 2023 03:15:44 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3016097; Thu, 28 Sep 2023 00:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695885342; x=1727421342; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aYVkD9R/amazwditpnyKsZ753FqDf92MQjTUubKUtOY=; b=eogXUYzjlnfM9gTDXJVk8g7DfVhGRALNtJ1d6Sn7MUrIIY9A08JC9fxF vRsocIkPPqa3SJH8owc1BfEZxpwbjs01iJ8lQYB+lBbANn0auVwvinFXT gTAdOKiIyoTNsKDDoEluadi3cAb5FgVg2mh7vFKzasifdCK093SP8agZ9 eMb7zRNa96hv3Ss2cY/upqhRAKj3vUycXFy4Dcc1kXsZybwH01NQpB/Se 2isain09Li4bG9WdpbzJgVsPN070xpkW8QHuYCLfDHd4dpswjEppNSZC4 ce38PhXJfXUlGi8Ob/Pa3EzRfqxVgfWpuz3zumPTtKNp46ufmo8fodpCU g==; X-IronPort-AV: E=McAfee;i="6600,9927,10846"; a="412914882" X-IronPort-AV: E=Sophos;i="6.03,183,1694761200"; d="scan'208";a="412914882" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2023 00:15:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10846"; a="784602106" X-IronPort-AV: E=Sophos;i="6.03,183,1694761200"; d="scan'208";a="784602106" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga001.jf.intel.com with ESMTP; 28 Sep 2023 00:15:41 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com, joao.m.martins@oracle.com Subject: [PATCH v2 5/6] iommufd/selftest: Add domain_alloc_user() support in iommu mock Date: Thu, 28 Sep 2023 00:15:27 -0700 Message-Id: <20230928071528.26258-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230928071528.26258-1-yi.l.liu@intel.com> References: <20230928071528.26258-1-yi.l.liu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds mock_domain_alloc_user function and also new test case for the new flag IOMMU_HWPT_ALLOC_NEST_PARENT. Co-developed-by: Nicolin Chen Signed-off-by: Nicolin Chen Signed-off-by: Yi Liu Reviewed-by: Kevin Tian --- drivers/iommu/iommufd/selftest.c | 19 +++++++++++++++ tools/testing/selftests/iommu/iommufd.c | 24 +++++++++++++++---- .../selftests/iommu/iommufd_fail_nth.c | 2 +- tools/testing/selftests/iommu/iommufd_utils.h | 11 ++++++--- 4 files changed, 48 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index 56506d5753f1..fe7e3c7d933a 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -146,6 +146,8 @@ static void *mock_domain_hw_info(struct device *dev, u32 *length, u32 *type) return info; } +static const struct iommu_ops mock_ops; + static struct iommu_domain *mock_domain_alloc(unsigned int iommu_domain_type) { struct mock_iommu_domain *mock; @@ -162,10 +164,26 @@ static struct iommu_domain *mock_domain_alloc(unsigned int iommu_domain_type) mock->domain.geometry.aperture_start = MOCK_APERTURE_START; mock->domain.geometry.aperture_end = MOCK_APERTURE_LAST; mock->domain.pgsize_bitmap = MOCK_IO_PAGE_SIZE; + mock->domain.ops = mock_ops.default_domain_ops; + mock->domain.type = iommu_domain_type; xa_init(&mock->pfns); return &mock->domain; } +static struct iommu_domain * +mock_domain_alloc_user(struct device *dev, u32 flags) +{ + struct iommu_domain *domain; + + if (flags & (~IOMMU_HWPT_ALLOC_NEST_PARENT)) + return ERR_PTR(-EOPNOTSUPP); + + domain = mock_domain_alloc(IOMMU_DOMAIN_UNMANAGED); + if (!domain) + domain = ERR_PTR(-ENOMEM); + return domain; +} + static void mock_domain_free(struct iommu_domain *domain) { struct mock_iommu_domain *mock = @@ -307,6 +325,7 @@ static const struct iommu_ops mock_ops = { .pgsize_bitmap = MOCK_IO_PAGE_SIZE, .hw_info = mock_domain_hw_info, .domain_alloc = mock_domain_alloc, + .domain_alloc_user = mock_domain_alloc_user, .capable = mock_domain_capable, .set_platform_dma_ops = mock_domain_set_plaform_dma_ops, .device_group = generic_device_group, diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index 9f705c1ea30f..9c129e63d7c7 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -114,6 +114,7 @@ TEST_F(iommufd, cmd_length) TEST_LENGTH(iommu_destroy, IOMMU_DESTROY); TEST_LENGTH(iommu_hw_info, IOMMU_GET_HW_INFO); + TEST_LENGTH(iommu_hwpt_alloc, IOMMU_HWPT_ALLOC); TEST_LENGTH(iommu_ioas_alloc, IOMMU_IOAS_ALLOC); TEST_LENGTH(iommu_ioas_iova_ranges, IOMMU_IOAS_IOVA_RANGES); TEST_LENGTH(iommu_ioas_allow_iovas, IOMMU_IOAS_ALLOW_IOVAS); @@ -1404,13 +1405,28 @@ TEST_F(iommufd_mock_domain, alloc_hwpt) int i; for (i = 0; i != variant->mock_domains; i++) { + uint32_t hwpt_id[2]; uint32_t stddev_id; - uint32_t hwpt_id; - test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id, &hwpt_id); - test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL); + test_err_hwpt_alloc(EOPNOTSUPP, + self->idev_ids[i], self->ioas_id, + ~IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[0]); + test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id, + 0, &hwpt_id[0]); + test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id, + IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[1]); + + /* Do a hw_pagetable rotation test */ + test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[0]); + EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[0])); + test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[1]); + EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[1])); + test_cmd_mock_domain_replace(self->stdev_ids[i], self->ioas_id); + test_ioctl_destroy(hwpt_id[1]); + + test_cmd_mock_domain(hwpt_id[0], &stddev_id, NULL, NULL); test_ioctl_destroy(stddev_id); - test_ioctl_destroy(hwpt_id); + test_ioctl_destroy(hwpt_id[0]); } } diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c index a220ca2a689d..3d7838506bfe 100644 --- a/tools/testing/selftests/iommu/iommufd_fail_nth.c +++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c @@ -615,7 +615,7 @@ TEST_FAIL_NTH(basic_fail_nth, device) if (_test_cmd_get_hw_info(self->fd, idev_id, &info, sizeof(info))) return -1; - if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, &hwpt_id)) + if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0, &hwpt_id)) return -1; if (_test_cmd_mock_domain_replace(self->fd, stdev_id, ioas_id2, NULL)) diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index e0753d03ecaa..be4970a84977 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -103,10 +103,11 @@ static int _test_cmd_mock_domain_replace(int fd, __u32 stdev_id, __u32 pt_id, pt_id, NULL)) static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, - __u32 *hwpt_id) + __u32 flags, __u32 *hwpt_id) { struct iommu_hwpt_alloc cmd = { .size = sizeof(cmd), + .flags = flags, .dev_id = device_id, .pt_id = pt_id, }; @@ -120,8 +121,12 @@ static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, return 0; } -#define test_cmd_hwpt_alloc(device_id, pt_id, hwpt_id) \ - ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, hwpt_id)) +#define test_cmd_hwpt_alloc(device_id, pt_id, flags, hwpt_id) \ + ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, \ + pt_id, flags, hwpt_id)) +#define test_err_hwpt_alloc(_errno, device_id, pt_id, flags, hwpt_id) \ + EXPECT_ERRNO(_errno, _test_cmd_hwpt_alloc(self->fd, device_id, \ + pt_id, flags, hwpt_id)) static int _test_cmd_access_replace_ioas(int fd, __u32 access_id, unsigned int ioas_id)