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 X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5591AC433E1 for ; Thu, 25 Jun 2020 20:18:50 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 326282145D for ; Thu, 25 Jun 2020 20:18:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 326282145D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 09320214EB; Thu, 25 Jun 2020 20:18:50 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zGJc-NTm9oqD; Thu, 25 Jun 2020 20:18:49 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 2D262233B9; Thu, 25 Jun 2020 20:18:49 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 232BDC088E; Thu, 25 Jun 2020 20:18:49 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6C5E9C016F for ; Thu, 25 Jun 2020 20:18:42 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 553938820F for ; Thu, 25 Jun 2020 20:18:42 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kDtD+Qv-awgt for ; Thu, 25 Jun 2020 20:18:39 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by whitealder.osuosl.org (Postfix) with ESMTPS id 60935881B7 for ; Thu, 25 Jun 2020 20:18:39 +0000 (UTC) IronPort-SDR: +Se1TMXjSkQxLeNCVNc4i+Bb2feclzucAWUfL7Z05yvu0RZiRsg43Xv1+JNm3plpwYziKlOjtP lKXBaDUHgVjA== X-IronPort-AV: E=McAfee;i="6000,8403,9663"; a="146566746" X-IronPort-AV: E=Sophos;i="5.75,280,1589266800"; d="scan'208";a="146566746" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jun 2020 13:18:39 -0700 IronPort-SDR: AAgquAkm1l/NqlL9WDyZ0cKvUdTTaegXPTF/KUycK8i/0U8HgUJlW03H6K4RoCnRpmWaIexUWZ R0cE70GNsQvQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,280,1589266800"; d="scan'208";a="453132234" Received: from romley-ivt3.sc.intel.com ([172.25.110.60]) by orsmga005.jf.intel.com with ESMTP; 25 Jun 2020 13:18:38 -0700 From: Fenghua Yu To: "Thomas Gleixner" , "Joerg Roedel" , "Ingo Molnar" , "Borislav Petkov" , "Peter Zijlstra" , "H Peter Anvin" , "David Woodhouse" , "Lu Baolu" , "Dave Hansen" , "Tony Luck" , "Jean-Philippe Brucker" , "Christoph Hellwig" , "Ashok Raj" , "Jacob Jun Pan" , "Dave Jiang" , "Sohil Mehta" , "Ravi V Shankar" Subject: [PATCH v4 06/12] x86/msr-index: Define IA32_PASID MSR Date: Thu, 25 Jun 2020 13:17:16 -0700 Message-Id: <1593116242-31507-7-git-send-email-fenghua.yu@intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1593116242-31507-1-git-send-email-fenghua.yu@intel.com> References: <1593116242-31507-1-git-send-email-fenghua.yu@intel.com> Cc: Fenghua Yu , iommu@lists.linux-foundation.org, x86 , linux-kernel X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" The IA32_PASID MSR (0xd93) contains the Process Address Space Identifier (PASID), a 20-bit value. Bit 31 must be set to indicate the value programmed in the MSR is valid. Hardware uses PASID to identify process address space and direct responses to the right address space. Signed-off-by: Fenghua Yu Reviewed-by: Tony Luck --- v2: - Change "identify process" to "identify process address space" in the commit message (Thomas) arch/x86/include/asm/msr-index.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index e8370e64a155..e5f699ff1dd6 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -237,6 +237,9 @@ #define MSR_IA32_LASTINTFROMIP 0x000001dd #define MSR_IA32_LASTINTTOIP 0x000001de +#define MSR_IA32_PASID 0x00000d93 +#define MSR_IA32_PASID_VALID BIT_ULL(31) + /* DEBUGCTLMSR bits (others vary by model): */ #define DEBUGCTLMSR_LBR (1UL << 0) /* last branch recording */ #define DEBUGCTLMSR_BTF_SHIFT 1 -- 2.19.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu