From patchwork Fri Apr 12 08:15:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13627134 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (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 D4D2A1CAA1 for ; Fri, 12 Apr 2024 08:15:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.17 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712909736; cv=none; b=VXc/MzbhRTuPoegMKHqoidt7nvvEg1i4mymkUbRH5XT6sx7WP22ofmkpEEMrk6Unj46f9436/W2qJwHSRyAGbO7lA1XyODQbTCjXbcmWtPgzjetUcbwPuY/Oe/tkuabLQsaPetKG0y0G3qm93Sp4g2VSbz+BisoEbG9M5xsM/G0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712909736; c=relaxed/simple; bh=IdGVpq99NNO+hKs44+lGcKfOIZlHBFrTSuNJuQcc74M=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=oEIK6iNEwf81Y2GpSQLw7vW1yAbfgGJe8uzvlhRm0BvljHT/YijMdiCsjKT3rxP9vHwFYx6andcaM0zkl68ch0HmpfB3w9B1K7btr+fpdfHu2vvdcEzOb58OiJ+tcTNUxpmAjq4wv+mMA3X9xDmgXdZFUrYGbPETBCoAtWV2ZGg= 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=WodLea8V; arc=none smtp.client-ip=198.175.65.17 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="WodLea8V" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1712909735; x=1744445735; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=IdGVpq99NNO+hKs44+lGcKfOIZlHBFrTSuNJuQcc74M=; b=WodLea8VzdmcDwJBauP8yLV7m38Ns3GRJCMqc3KQ1yxyuzkejeTuz8Td Dl+J4ba1RWzUMj0z3LXAAwIP8dF8pLB4lXurIBn2W4yjESmKDbMlkVSll K6vr3Wgl0WrlnshmIptD48CSdx1QpHdrTutgwBcNLUN9tgYY9XuMN2ymU L7t8p6mttFmiiJmUzwCYUzRDPmPvYRqjFp33F6Jej6KMSGlMOVJ3yhyuX agRlenxXXJogjqTP/py4cvk8bcdHuoaOLCcZm5empW/yZK2TIcI3GzDhL PIUgXfQ2763sBdNhtZ2RKXD+PL7kbVKz4TqsZpMaH+Xrtq4uyB4veg8wu Q==; X-CSE-ConnectionGUID: apEeIkQgT9SJwlIhOBED6g== X-CSE-MsgGUID: pAXpwrC9TOO2Gj9eQkPS5Q== X-IronPort-AV: E=McAfee;i="6600,9927,11041"; a="8465080" X-IronPort-AV: E=Sophos;i="6.07,195,1708416000"; d="scan'208";a="8465080" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2024 01:15:35 -0700 X-CSE-ConnectionGUID: vuvOm5lwQjeVQfgKlRyHMw== X-CSE-MsgGUID: D9L7gTzXTAWqr0a0GPgB3g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,195,1708416000"; d="scan'208";a="52137851" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orviesa002.jf.intel.com with ESMTP; 12 Apr 2024 01:15:34 -0700 From: Yi Liu To: joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com, baolu.lu@linux.intel.com Cc: alex.williamson@redhat.com, robin.murphy@arm.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, iommu@lists.linux.dev, zhenzhong.duan@intel.com, jacob.jun.pan@intel.com Subject: [PATCH v2 06/12] iommufd/selftest: Add set_dev_pasid and remove_dev_pasid in mock iommu Date: Fri, 12 Apr 2024 01:15:10 -0700 Message-Id: <20240412081516.31168-7-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240412081516.31168-1-yi.l.liu@intel.com> References: <20240412081516.31168-1-yi.l.liu@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The two callbacks are needed to make pasid_attach/detach path complete for mock device. A nop is enough for set_dev_pasid, a domain type check in the remove_dev_pasid is also helpful. Signed-off-by: Yi Liu --- drivers/iommu/iommufd/selftest.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index 7a2199470f31..45e1328f0f5d 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -511,9 +511,35 @@ static struct iommu_device *mock_probe_device(struct device *dev) { if (dev->bus != &iommufd_mock_bus_type.bus) return ERR_PTR(-ENODEV); + + dev->iommu->max_pasids = 1 << 20;//20 bits return &mock_iommu_device; } +static void mock_iommu_remove_dev_pasid(struct device *dev, ioasid_t pasid, + struct iommu_domain *domain) +{ + /* Domain type specific cleanup: */ + if (domain) { + switch (domain->type) { + case IOMMU_DOMAIN_NESTED: + case IOMMU_DOMAIN_UNMANAGED: + break; + default: + /* should never reach here */ + WARN_ON(1); + break; + } + } +} + +static int mock_domain_set_dev_pasid_nop(struct iommu_domain *domain, + struct device *dev, ioasid_t pasid, + struct iommu_domain *old) +{ + return 0; +} + static const struct iommu_ops mock_ops = { /* * IOMMU_DOMAIN_BLOCKED cannot be returned from def_domain_type() @@ -529,6 +555,7 @@ static const struct iommu_ops mock_ops = { .capable = mock_domain_capable, .device_group = generic_device_group, .probe_device = mock_probe_device, + .remove_dev_pasid = mock_iommu_remove_dev_pasid, .default_domain_ops = &(struct iommu_domain_ops){ .free = mock_domain_free, @@ -536,6 +563,7 @@ static const struct iommu_ops mock_ops = { .map_pages = mock_domain_map_pages, .unmap_pages = mock_domain_unmap_pages, .iova_to_phys = mock_domain_iova_to_phys, + .set_dev_pasid = mock_domain_set_dev_pasid_nop, }, }; @@ -600,6 +628,7 @@ static struct iommu_domain_ops domain_nested_ops = { .free = mock_domain_free_nested, .attach_dev = mock_domain_nop_attach, .cache_invalidate_user = mock_domain_cache_invalidate_user, + .set_dev_pasid = mock_domain_set_dev_pasid_nop, }; static inline struct iommufd_hw_pagetable * @@ -1491,6 +1520,8 @@ int __init iommufd_test_init(void) &iommufd_mock_bus_type.nb); if (rc) goto err_sysfs; + + mock_iommu_device.max_pasids = (1 << 20);//20 bits return 0; err_sysfs: