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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 1B06DC433ED for ; Mon, 17 May 2021 09:36:39 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 CCF3E61059 for ; Mon, 17 May 2021 09:36:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CCF3E61059 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.128133.240604 (Exim 4.92) (envelope-from ) id 1liZfo-0007A4-PH; Mon, 17 May 2021 09:36:28 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 128133.240604; Mon, 17 May 2021 09:36:28 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1liZfo-00079x-MN; Mon, 17 May 2021 09:36:28 +0000 Received: by outflank-mailman (input) for mailman id 128133; Mon, 17 May 2021 09:36:28 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1liZfo-00079r-6p for xen-devel@lists.xenproject.org; Mon, 17 May 2021 09:36:28 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1liZfl-00006B-DE; Mon, 17 May 2021 09:36:25 +0000 Received: from [54.239.6.185] (helo=a483e7b01a66.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1liZfl-0005Oh-6j; Mon, 17 May 2021 09:36:25 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:Cc:To:Subject; bh=J1WSNSzJeyuM+ouj28g9EeljK31fGQKeT+wbfTEyemw=; b=wpF/0NPYNuowfHSAn5O3Vl9Mkh YlLAwL3UomNc1O9kqxzpjrQwc8LjsuciKtpdsdGjJ5l6z74xXL2WU2P6YlPw65K14g5N4xLtM678g Ino7uSz3FP/OLaJ8TtsY4x8YYfhKNVWOGmgwAXk98V6EYFtKo7W1kvcfHk8oh7URJSuk=; Subject: Re: [PATCH] drivers/char: Add USB3 debug capability driver To: Connor Davis , xen-devel@lists.xenproject.org Cc: Andrew Cooper , George Dunlap , Ian Jackson , Jan Beulich , Stefano Stabellini , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <9a6a15ebc538105c83be88883ab3a7125ed52d37.1620776791.git.connojdavis@gmail.com> From: Julien Grall Message-ID: <46931334-d4a8-eb89-0b81-727ff30c0ec0@xen.org> Date: Mon, 17 May 2021 10:36:22 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <9a6a15ebc538105c83be88883ab3a7125ed52d37.1620776791.git.connojdavis@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Hi Connor, On 12/05/2021 01:12, Connor Davis wrote: > +config XHCI_FIXMAP_PAGES > + int "Number of fixmap entries to allocate for the xHC" > + depends on HAS_XHCI_DBC > + default 16 > + help > + This should equal the size (in 4K pages) of the first 64-bit > + BAR of the host controller in which the DbC is being used. Why can't you use the ioremap() for the new serial controller? Is this going to be used by Xen very early? Cheers, -- Julien Grall