From patchwork Thu Mar 13 12:47:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 14014964 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3CD712676F3 for ; Thu, 13 Mar 2025 12:48:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741870081; cv=none; b=KlEZA7Pf4aalUurFqH+96Rgbqp+YldHfajeyatJ/Ac58NyriTF/IzR2BDeWPkBPw1KeT2utXZpAIpDFtMPF4Zn1CIN2WVI8xB1RsWRinCCLo868tKlQsCgCPzQXVpUvbuN72kGxRpTD1FDU/4uJHoBp6T1KstMOM+Kf7rBNZ8PA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741870081; c=relaxed/simple; bh=LRaXO1+32bJRdfqcjTqD5LQPp1lOusyunjM2/8RSuoQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MpH28uDzzCSPdBCqk0N4jON8J6JqAnWHeAIeOBsnUhzEaLMWmjJpycllNHGAPJ6CkR33TQHbqIul5Ci786JtXZh+/8gK92yPtQl6NCJwHsweJgQXIDj0TPRUAR3XlgiPX/v+r0ZEhM32e8A72qfC/Puo9D+X2oYTzt4KyuJQJnU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=BeAchXyk; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="BeAchXyk" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1741870081; x=1773406081; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LRaXO1+32bJRdfqcjTqD5LQPp1lOusyunjM2/8RSuoQ=; b=BeAchXykZqgk78B8k+RE6Zxj35YCPkfFOKn2AJJ1evxzMcHMp5mC/Ict DsRvWQW4dNMtspkqZBrH0b9ahjFOhgz+GT44SYAvkdh0NiXeN/s4fzJ1G j+v/KR6xgoKWoUJ0RVMED8HvCDqOe0lAQZC+Wpl3e/kjHsRhViDCwVD2B FKnSoY6E86DsMZGFxhgBU4eKVPalUg2flxTIYYBuPxsWE+6AqtiKpM//o MwHfM1lVMEU2qSSUkGYzC6EfgMLyELfqmlf2Ia8tMNkSsG6QNqbfb4GDn yaOWpy+ba46LniVw31iNOKmtBpsclai01MHLop3RzrIUVzSp/EkomJzE+ g==; X-CSE-ConnectionGUID: KhycJIAYTj65tVtt+rKLwg== X-CSE-MsgGUID: 5Bl8R8EjQDmzeW9zwMDDeg== X-IronPort-AV: E=McAfee;i="6700,10204,11372"; a="60383583" X-IronPort-AV: E=Sophos;i="6.14,244,1736841600"; d="scan'208";a="60383583" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Mar 2025 05:47:56 -0700 X-CSE-ConnectionGUID: LaqVLtGzQxa9vNiItoNApw== X-CSE-MsgGUID: F46jp/s6SeK6IFKOixQIgw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,244,1736841600"; d="scan'208";a="158095337" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orviesa001.jf.intel.com with ESMTP; 13 Mar 2025 05:47:55 -0700 From: Yi Liu To: alex.williamson@redhat.com, kevin.tian@intel.com Cc: jgg@nvidia.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, yi.l.liu@intel.com, chao.p.peng@linux.intel.com, zhenzhong.duan@intel.com, willy@infradead.org, zhangfei.gao@linaro.org, vasant.hegde@amd.com Subject: [PATCH v8 5/5] iommufd/selftest: Add coverage for reporting max_pasid_log2 via IOMMU_HW_INFO Date: Thu, 13 Mar 2025 05:47:53 -0700 Message-Id: <20250313124753.185090-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250313124753.185090-1-yi.l.liu@intel.com> References: <20250313124753.185090-1-yi.l.liu@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 IOMMU_HW_INFO is extended to report max_pasid_log2, hence add coverage for it. Signed-off-by: Yi Liu --- tools/testing/selftests/iommu/iommufd.c | 18 ++++++++++++++++++ .../testing/selftests/iommu/iommufd_fail_nth.c | 3 ++- tools/testing/selftests/iommu/iommufd_utils.h | 17 +++++++++++++---- 3 files changed, 33 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c index c41d15e91983..f06e0f554608 100644 --- a/tools/testing/selftests/iommu/iommufd.c +++ b/tools/testing/selftests/iommu/iommufd.c @@ -342,12 +342,14 @@ FIXTURE(iommufd_ioas) uint32_t hwpt_id; uint32_t device_id; uint64_t base_iova; + uint32_t pasid_device_id; }; FIXTURE_VARIANT(iommufd_ioas) { unsigned int mock_domains; unsigned int memory_limit; + bool pasid_capable; }; FIXTURE_SETUP(iommufd_ioas) @@ -372,6 +374,12 @@ FIXTURE_SETUP(iommufd_ioas) IOMMU_TEST_DEV_CACHE_DEFAULT); self->base_iova = MOCK_APERTURE_START; } + + if (variant->pasid_capable) + test_cmd_mock_domain_flags(self->ioas_id, + MOCK_FLAGS_DEVICE_PASID, + NULL, NULL, + &self->pasid_device_id); } FIXTURE_TEARDOWN(iommufd_ioas) @@ -387,6 +395,7 @@ FIXTURE_VARIANT_ADD(iommufd_ioas, no_domain) FIXTURE_VARIANT_ADD(iommufd_ioas, mock_domain) { .mock_domains = 1, + .pasid_capable = true, }; FIXTURE_VARIANT_ADD(iommufd_ioas, two_mock_domain) @@ -752,6 +761,8 @@ TEST_F(iommufd_ioas, get_hw_info) } buffer_smaller; if (self->device_id) { + uint8_t max_pasid = 0; + /* Provide a zero-size user_buffer */ test_cmd_get_hw_info(self->device_id, NULL, 0); /* Provide a user_buffer with exact size */ @@ -766,6 +777,13 @@ TEST_F(iommufd_ioas, get_hw_info) * the fields within the size range still gets updated. */ test_cmd_get_hw_info(self->device_id, &buffer_smaller, sizeof(buffer_smaller)); + test_cmd_get_hw_info_pasid(self->device_id, &max_pasid); + ASSERT_EQ(0, max_pasid); + if (variant->pasid_capable) { + test_cmd_get_hw_info_pasid(self->pasid_device_id, + &max_pasid); + ASSERT_EQ(20, max_pasid); + } } else { test_err_get_hw_info(ENOENT, self->device_id, &buffer_exact, sizeof(buffer_exact)); diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c index 6bbdc187a986..121e714a3183 100644 --- a/tools/testing/selftests/iommu/iommufd_fail_nth.c +++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c @@ -664,7 +664,8 @@ TEST_FAIL_NTH(basic_fail_nth, device) &self->stdev_id, NULL, &idev_id)) return -1; - if (_test_cmd_get_hw_info(self->fd, idev_id, &info, sizeof(info), NULL)) + if (_test_cmd_get_hw_info(self->fd, idev_id, &info, + sizeof(info), NULL, NULL)) return -1; if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0, diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index 523ff28e4bc9..8ed05838787d 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -757,7 +757,8 @@ static void teardown_iommufd(int fd, struct __test_metadata *_metadata) /* @data can be NULL */ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, - size_t data_len, uint32_t *capabilities) + size_t data_len, uint32_t *capabilities, + uint8_t *max_pasid) { struct iommu_test_hw_info *info = (struct iommu_test_hw_info *)data; struct iommu_hw_info cmd = { @@ -802,6 +803,9 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, assert(!info->flags); } + if (max_pasid) + *max_pasid = cmd.out_max_pasid_log2; + if (capabilities) *capabilities = cmd.out_capabilities; @@ -810,14 +814,19 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data, #define test_cmd_get_hw_info(device_id, data, data_len) \ ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, data, \ - data_len, NULL)) + data_len, NULL, NULL)) #define test_err_get_hw_info(_errno, device_id, data, data_len) \ EXPECT_ERRNO(_errno, _test_cmd_get_hw_info(self->fd, device_id, data, \ - data_len, NULL)) + data_len, NULL, NULL)) #define test_cmd_get_hw_capabilities(device_id, caps, mask) \ - ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, 0, &caps)) + ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, \ + 0, &caps, NULL)) + +#define test_cmd_get_hw_info_pasid(device_id, max_pasid) \ + ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, \ + 0, NULL, max_pasid)) static int _test_ioctl_fault_alloc(int fd, __u32 *fault_id, __u32 *fault_fd) {