From patchwork Mon Nov 4 13:20:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13861385 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 34BA12D05E for ; Mon, 4 Nov 2024 13:20:42 +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=1730726443; cv=none; b=XCZfLNPh8hv4U3kRVMVVPXYRwHYtsehtqrk7K6QRKNLb5Chxe1NMwefQAJs4NNVkCNlgEdEDHzGzv6+DV+fkYCcOnINwhznYagGa7xTeJagCwUsGO4mlb6qH87jRQzOHwf0FxZbhsgTuClUMQHcf9Y5Q+FkJI1FEOAhjbL7Eluk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730726443; c=relaxed/simple; bh=STwQNNlpnSNSJ9AYhnQKss8CVJ6vzxvWbO4ctAdc2S0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Bvsa/w+GHMQeq62tlmcDJyTbrQ26Ke/ECeCc90Yh/jk9OOgAbLbB7DHC+1FNq+SF/Q/IUH54pxfvPvmHvBEunD5ysxG/glq2Q6zuka7LQMjq0ssKifZLxkG5Q9qM2mPkApcTKszYN4J6bzoIiRmmhcgN1rF6NVEFIaWansMqRUA= 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=KfrPLCRv; 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="KfrPLCRv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730726443; x=1762262443; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=STwQNNlpnSNSJ9AYhnQKss8CVJ6vzxvWbO4ctAdc2S0=; b=KfrPLCRvSpi9QfvbxTxBi+sXjjx54X+h9I0HUUqhx4c3d3Ir76BMVLcn 4t/CJsV+PLlyUkPA5Odg5q9mTV46QgV2doGxZx6x10yAuAgcVd/Qe3tUq 7/cFHVtVTUgxsJSJ90xndWXcr9OLQlYNdIqSI+CsexOAzmHFhyD/h5L7A nl6NUP3Vk9WT5CqJjSGz5c1anBs7t4GXyLLxJtt2BvlCgrDru3Lovm4T0 Gh84kpNugkFe31dbB8ybJdgUASb++1fu8OS4OUN3WuON8FdqdLXvvo2i2 R6lBBfbRg3kj2DmgsfiH0gaXAhcuYYGUKKCyl2AhsaBaWk7Gb8grwvXS9 A==; X-CSE-ConnectionGUID: jaZso0EtTMmvPwXlp3ikbA== X-CSE-MsgGUID: bzF+mVZXT8eY6SOqOUULaA== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="47883293" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="47883293" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2024 05:20:41 -0800 X-CSE-ConnectionGUID: l/3qv5tnT/6O+vKxeVdHgg== X-CSE-MsgGUID: 4fCyQ77KR76IAjcITe+LqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,257,1725346800"; d="scan'208";a="84099736" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orviesa007.jf.intel.com with ESMTP; 04 Nov 2024 05:20:41 -0800 From: Yi Liu To: joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com, baolu.lu@linux.intel.com Cc: alex.williamson@redhat.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, vasant.hegde@amd.com, will@kernel.org Subject: [PATCH v3 5/7] iommu/vt-d: Make the blocked domain support PASID Date: Mon, 4 Nov 2024 05:20:31 -0800 Message-Id: <20241104132033.14027-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241104132033.14027-1-yi.l.liu@intel.com> References: <20241104132033.14027-1-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 blocked domain can be extended to park PASID of a device to be the DMA blocking state. By this the remove_dev_pasid() op is dropped. Reviewed-by: Kevin Tian Signed-off-by: Yi Liu Reviewed-by: Jason Gunthorpe --- drivers/iommu/intel/iommu.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 7f1ca3c342a3..a1341078b962 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -3414,10 +3414,15 @@ static int blocking_domain_attach_dev(struct iommu_domain *domain, return 0; } +static int blocking_domain_set_dev_pasid(struct iommu_domain *domain, + struct device *dev, ioasid_t pasid, + struct iommu_domain *old); + static struct iommu_domain blocking_domain = { .type = IOMMU_DOMAIN_BLOCKED, .ops = &(const struct iommu_domain_ops) { .attach_dev = blocking_domain_attach_dev, + .set_dev_pasid = blocking_domain_set_dev_pasid, } }; @@ -4291,15 +4296,18 @@ void domain_remove_dev_pasid(struct iommu_domain *domain, kfree(dev_pasid); } -static void intel_iommu_remove_dev_pasid(struct device *dev, ioasid_t pasid, - struct iommu_domain *domain) +static int blocking_domain_set_dev_pasid(struct iommu_domain *domain, + struct device *dev, ioasid_t pasid, + struct iommu_domain *old) { struct device_domain_info *info = dev_iommu_priv_get(dev); struct intel_iommu *iommu = info->iommu; intel_pasid_tear_down_entry(iommu, dev, pasid, false); intel_drain_pasid_prq(dev, pasid); - domain_remove_dev_pasid(domain, dev, pasid); + domain_remove_dev_pasid(old, dev, pasid); + + return 0; } struct dev_pasid_info * @@ -4664,7 +4672,6 @@ const struct iommu_ops intel_iommu_ops = { .dev_disable_feat = intel_iommu_dev_disable_feat, .is_attach_deferred = intel_iommu_is_attach_deferred, .def_domain_type = device_def_domain_type, - .remove_dev_pasid = intel_iommu_remove_dev_pasid, .pgsize_bitmap = SZ_4K, #ifdef CONFIG_INTEL_IOMMU_SVM .page_response = intel_svm_page_response,