From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lu Baolu Subject: Re: [PATCH v2 3/7] iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions Date: Thu, 25 Apr 2019 09:15:24 +0800 Message-ID: <7faf596b-146a-465c-0837-7ed9595e5f0f@linux.intel.com> References: <0F0C82BE-86E5-4BAC-938C-6F7629E18D27@arista.com> <83B82113-8AE5-4B0C-A079-F389520525BD@arista.com> <445F31EA-20F3-481C-B1DF-8B163791FF8C@arista.com> <6C211BF1-B5A0-4821-AB42-092B573DE667@arista.com> <8B1FC0C7-9BAC-498D-B1F0-0138EACF75C2@arista.com> <9AECB54A-2DA7-4ABD-A9B5-0549E108D1AF@arista.com> <1D51CB31-089A-4D71-A9C1-E54E50A56C46@arista.com> <1b7d37da-5660-f635-cd2f-619e5573d35a@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Tom Murphy Cc: "Tian, Kevin" , Ashok Raj , Dmitry Safonov , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: iommu@lists.linux-foundation.org SGkgVG9tLAoKT24gNC8yNS8xOSA3OjQ3IEFNLCBUb20gTXVycGh5IHdyb3RlOgo+IEkgY2FuIHNl ZSB0d28gcG90ZW50aWFsIHByb2JsZW1zIHdpdGggdGhlc2UgcGF0Y2hlcyB0aGF0IHNob3VsZCBi ZSBhZGRyZXNzZWQ6Cj4gCj4gVGhlIGRlZmF1bHQgZG9tYWluIG9mIGEgZ3JvdXAgY2FuIGJlIGNo YW5nZWQgdG8gdHlwZQo+IElPTU1VX0RPTUFJTl9JREVOVElUWSB2aWEgdGhlIGNvbW1hbmQgbGlu ZS4gV2l0aCB0aGVzZSBwYXRjaGVzIHdlIGFyZQo+IHJldHVybmluZyB0aGUgc2lfZG9tYWluIGZv ciB0eXBlIElPTU1VX0RPTUFJTl9JREVOVElUWS4gVGhlcmUncyBhCj4gY2hhbmNlIHRoZSBzaGFy ZWQgc2lfZG9tYWluIGNvdWxkIGJlIGZyZWVkIHdoaWxlIGl0IGlzIHN0aWxsIGJlaW5nCj4gdXNl ZCB3aGVuIGEgZ3JvdXAgaXMgZnJlZWQuIEZvciBleGFtcGxlIGhlcmUgaW4gdGhlCj4gaW9tbXVf 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YWsgaXQgYWNjb3JkaW5nIHRvIHRoZSBxdWlyayBiaXRzIGluIHRoZSBkcml2ZXIuCj4+Cj4+IEJl c3QgcmVnYXJkcywKPj4gTHUgQmFvbHUKPiAKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KaW9tbXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4LWZv dW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2lvbW11 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=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS 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 EA2ADC10F11 for ; Thu, 25 Apr 2019 01:21:39 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No 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SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Apr 2019 18:21:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,391,1549958400"; d="scan'208";a="340564573" Received: from allen-box.sh.intel.com (HELO [10.239.159.136]) ([10.239.159.136]) by fmsmga006.fm.intel.com with ESMTP; 24 Apr 2019 18:21:35 -0700 Subject: Re: [PATCH v2 3/7] iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions To: Tom Murphy References: <0F0C82BE-86E5-4BAC-938C-6F7629E18D27@arista.com> <83B82113-8AE5-4B0C-A079-F389520525BD@arista.com> <445F31EA-20F3-481C-B1DF-8B163791FF8C@arista.com> <6C211BF1-B5A0-4821-AB42-092B573DE667@arista.com> <8B1FC0C7-9BAC-498D-B1F0-0138EACF75C2@arista.com> <9AECB54A-2DA7-4ABD-A9B5-0549E108D1AF@arista.com> <1D51CB31-089A-4D71-A9C1-E54E50A56C46@arista.com> <1b7d37da-5660-f635-cd2f-619e5573d35a@linux.intel.com> From: Lu Baolu Message-ID: <7faf596b-146a-465c-0837-7ed9595e5f0f@linux.intel.com> Date: Thu, 25 Apr 2019 09:15:24 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Cc: "Tian, Kevin" , Ashok Raj , Dmitry Safonov , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="UTF-8"; format="flowed" Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Message-ID: <20190425011524.LJK1hiwo2b35QigyGtq4xksTcnMefxoqm84IDFbh53I@z> SGkgVG9tLAoKT24gNC8yNS8xOSA3OjQ3IEFNLCBUb20gTXVycGh5IHdyb3RlOgo+IEkgY2FuIHNl ZSB0d28gcG90ZW50aWFsIHByb2JsZW1zIHdpdGggdGhlc2UgcGF0Y2hlcyB0aGF0IHNob3VsZCBi 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