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 DE9B7ECAAD3 for ; Mon, 19 Sep 2022 06:31:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229733AbiISGbZ (ORCPT ); Mon, 19 Sep 2022 02:31:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229714AbiISGbX (ORCPT ); Mon, 19 Sep 2022 02:31:23 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6321017A88 for ; Sun, 18 Sep 2022 23:31:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663569082; x=1695105082; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=dVdgBkbGUl4BGMdHCf+Lq0avz2hGOi0xJ/PV314U0jA=; b=JF/3rt/JtpSaeNGeTravto9P6ub73nIezKqCJPa45Zi6qBwk/QACcnQK lFBGG1GHxXY+G/tRNuEbT8htOVbz7eLkxJWkddKvSc5vywMFJtKfaz5V0 6Rv486PQu6CZwwmBc+yUmyOo/WCwXSEqHwbQhL9lVG91JKnIMnmQHqdlq VfzkVty3ma7GSmH5IF1/tK9l2EXAibTdQs5IyD8GuyxWTSp7+sSeZozJv GyBBvgPCRPvZANfuRtqIuMBUeiDUQbzu0qLt6isx8d8rJaNAZkppiUaWn fuBPHi0nQBNBmRvqnggIxHE/v+n2YBWHe3x7EkK3qafXQZdTczmRUqWZ5 g==; X-IronPort-AV: E=McAfee;i="6500,9779,10474"; a="279699700" X-IronPort-AV: E=Sophos;i="5.93,327,1654585200"; d="scan'208";a="279699700" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2022 23:31:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,327,1654585200"; d="scan'208";a="680715154" Received: from allen-box.sh.intel.com ([10.239.159.48]) by fmsmga008.fm.intel.com with ESMTP; 18 Sep 2022 23:31:20 -0700 From: Lu Baolu To: iommu@lists.linux.dev Cc: Joerg Roedel , Will Deacon , Robin Murphy , Kevin Tian , Jacob Pan , linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH 0/2] iommu/vt-d: Add ESRTPS & ESIRTPS check Date: Mon, 19 Sep 2022 14:25:21 +0800 Message-Id: <20220919062523.3438951-1-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi folks, Some VT-d hardware implementations invalidates all DMA remapping or interrupt remapping hardware translation caches as part of SRTP or SIRTPS flow. The VT-d spec introduced two capability bits for these hardware behaviors. This series fine tuned the VT-d driver to avoid unnecessary global cache validations. Best regards, baolu Lu Baolu (2): iommu/vt-d: Avoid unnecessary global IRTE cache invalidation iommu/vt-d: Avoid unnecessary global DMA cache invalidation drivers/iommu/intel/iommu.h | 2 ++ drivers/iommu/intel/iommu.c | 7 +++++++ drivers/iommu/intel/irq_remapping.c | 3 ++- 3 files changed, 11 insertions(+), 1 deletion(-) -- 2.34.1