From mboxrd@z Thu Jan 1 00:00:00 1970 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 D3C7BC433F5 for ; Thu, 21 Apr 2022 11:38:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1388910AbiDULlm (ORCPT ); Thu, 21 Apr 2022 07:41:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244998AbiDULlg (ORCPT ); Thu, 21 Apr 2022 07:41:36 -0400 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 022DF2C106 for ; Thu, 21 Apr 2022 04:38:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650541126; x=1682077126; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=t+FgniAGQmeXacymlT2gSb61V603jB6flixJAZie7ew=; b=I2PlLDcve7ja5qOIfWmTnr8HJVRXqHB9UXHfsHLv73qJQGLD0EJWKuI9 oV3b/FO5Bk5LTYgndQ/rWqlpIp5Li/x0T6CE/EbegFo3Na8R5/aaOZEmZ h/nUXpG326qer4q//bBAT+JkDgcG9wXblzite1zt2PbC5UlRrVn7o/zon sVac8y4Xa/xXMylTsioDGl3Cl+fCwaIqwiZHH1tc/T8U+7t7FUiPjRDMv Z3Ck1aNtcdMhog3/U9H1Nqm7oVfj60+/ql+zCyZloLdRWJajMIEbwRDWB at7Hi6LsEgs+EhPUnKOHVaiNJuMxV2b1dXusnO7vOsm2rSag1oOX/fmdp g==; X-IronPort-AV: E=McAfee;i="6400,9594,10323"; a="264492186" X-IronPort-AV: E=Sophos;i="5.90,278,1643702400"; d="scan'208";a="264492186" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2022 04:38:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,278,1643702400"; d="scan'208";a="703047926" Received: from allen-box.sh.intel.com ([10.239.159.48]) by fmsmga001.fm.intel.com with ESMTP; 21 Apr 2022 04:38:45 -0700 From: Lu Baolu To: Jacob jun Pan , Kevin Tian , Ashok Raj , Liu Yi L Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH v2 2/4] iommu/vt-d: Set PGSNP bit in pasid table entry for SVA binding Date: Thu, 21 Apr 2022 19:35:56 +0800 Message-Id: <20220421113558.3504874-3-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220421113558.3504874-1-baolu.lu@linux.intel.com> References: <20220421113558.3504874-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This field make the requests snoop processor caches irrespective of other attributes in the request or other fields in paging structure entries used to translate the request. Signed-off-by: Lu Baolu --- drivers/iommu/intel/svm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 23a38763c1d1..c720d1be992d 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -391,9 +391,12 @@ static struct iommu_sva *intel_svm_bind_mm(struct intel_iommu *iommu, } /* Setup the pasid table: */ - sflags = (flags & SVM_FLAG_SUPERVISOR_MODE) ? - PASID_FLAG_SUPERVISOR_MODE : 0; - sflags |= cpu_feature_enabled(X86_FEATURE_LA57) ? PASID_FLAG_FL5LP : 0; + sflags = PASID_FLAG_PAGE_SNOOP; + if (flags & SVM_FLAG_SUPERVISOR_MODE) + sflags |= PASID_FLAG_SUPERVISOR_MODE; + if (cpu_feature_enabled(X86_FEATURE_LA57)) + sflags |= PASID_FLAG_FL5LP; + spin_lock_irqsave(&iommu->lock, iflags); ret = intel_pasid_setup_first_level(iommu, dev, mm->pgd, mm->pasid, FLPT_DEFAULT_DID, sflags); -- 2.25.1