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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 1EAB7C43460 for ; Tue, 6 Apr 2021 09:08:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7A3E610E8 for ; Tue, 6 Apr 2021 09:08:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244789AbhDFJIa (ORCPT ); Tue, 6 Apr 2021 05:08:30 -0400 Received: from 8bytes.org ([81.169.241.247]:33522 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240199AbhDFJI3 (ORCPT ); Tue, 6 Apr 2021 05:08:29 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id 27AE33A4; Tue, 6 Apr 2021 11:08:20 +0200 (CEST) Date: Tue, 6 Apr 2021 11:08:18 +0200 From: Joerg Roedel To: "chenxiang (M)" Cc: Sai Prakash Ranjan , Will Deacon , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-arm-msm@vger.kernel.org, Robin Murphy , linux-arm-kernel@lists.infradead.org, linuxarm@huawei.com Subject: Re: [PATCH] iommu: Add device name to iommu map/unmap trace events Message-ID: References: <20210209123620.19993-1-saiprakash.ranjan@codeaurora.org> <20210212105039.GG7302@8bytes.org> <626fbcb8-b84f-1522-4ec3-9c7c1f5f7a93@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <626fbcb8-b84f-1522-4ec3-9c7c1f5f7a93@hisilicon.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 06, 2021 at 02:56:53PM +0800, chenxiang (M) wrote: > Is it possible to use group id to identify different domains? No, the best is to do this during post-processing of your traces by also keeping tack of domain-device attachments/detachments. Regards, Joerg