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Sun, 9 Jun 2019 02:50:48 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 62F0DAF5 for ; Sun, 9 Jun 2019 02:50:47 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id EB01A174 for ; Sun, 9 Jun 2019 02:50:46 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jun 2019 19:50:46 -0700 X-ExtLoop1: 1 Received: from allen-box.sh.intel.com (HELO [10.239.159.136]) ([10.239.159.136]) by orsmga004.jf.intel.com with ESMTP; 08 Jun 2019 19:50:43 -0700 Subject: Re: "iommu/vt-d: Delegate DMA domain to generic iommu" series breaks megaraid_sas To: Qian Cai References: <1559941717.6132.63.camel@lca.pw> From: Lu Baolu Message-ID: <1e4f0642-e4e1-7602-3f50-37edc84ced50@linux.intel.com> Date: Sun, 9 Jun 2019 10:43:39 +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: <1559941717.6132.63.camel@lca.pw> Content-Language: en-US Cc: Joerg Roedel , Shivasharan S , "linux-kernel@vger.kernel.org" , Kashyap Desai , Sumit Saxena , 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 SGkgUWlhbiwKCkkganVzdCBwb3N0ZWQgc29tZSBmaXggcGF0Y2hlcy4gSSBjYydlZCB0aGVtIGlu IHlvdXIgZW1haWwgaW5ib3ggYXMKd2VsbC4gQ2FuIHlvdSBwbGVhc2UgY2hlY2sgd2hldGhlciB0 aGV5IGhhcHBlbiB0byBmaXggeW91ciBpc3N1ZT8KSWYgbm90LCBkbyB5b3UgbWluZCBwb3N0aW5n IG1vcmUgZGVidWcgbWVzc2FnZXM/CgpCZXN0IHJlZ2FyZHMsCkJhb2x1CgoKT24gNi84LzE5IDU6 MDggQU0sIFFpYW4gQ2FpIHdyb3RlOgo+IFRoZSBsaW51eC1uZXh0IHNlcmllcyAiaW9tbXUvdnQt ZDogRGVsZWdhdGUgRE1BIGRvbWFpbiB0byBnZW5lcmljIGlvbW11IiBbMV0KPiBjYXVzZXMgYSBz eXN0ZW0gd2l0aCB0aGUgcm9vdGZzIG9uIG1lZ2FyYWlkX3NhcyBjYXJkIHVuYWJsZSB0byBib290 Lgo+IAo+IFJldmVydGVkIHRoZSB3aG9sZSBzZXJpZXMgb24gdGhlIHRvcCBvZiBsaW51eC1uZXh0 IChuZXh0LTIwMTkwNjA3KSBmaXhlZCB0aGUKPiBpc3N1ZS4KPiAKPiBUaGUgaW5mb3JtYXRpb24g cmVnYXJkcyB0aGlzIHN0b3JhZ2UgY2FyZCBpcywKPiAKPiBbwqDCoDExNi40NjY4MTBdW8KgwqBU MzI0XSBtZWdhcmFpZF9zYXMgMDAwMDowNjowMC4wOiBGVyBwcm92aWRlZCBzdXBwb3J0TWF4RXh0 TERzOgo+IDAJbWF4X2xkczogMzIKPiBbwqDCoDExNi40NzYwNTJdW8KgwqBUMzI0XSBtZWdhcmFp ZF9zYXMgMDAwMDowNjowMC4wOiBjb250cm9sbGVyIHR5cGUJOgo+IGlNUigwTUIpCj4gW8KgwqAx MTYuNDgzNjQ2XVvCoMKgVDMyNF0gbWVnYXJhaWRfc2FzIDAwMDA6MDY6MDAuMDogT25saW5lIENv bnRyb2xsZXIgUmVzZXQoT0NSKQkKPiA6IEVuYWJsZWQKPiBbwqDCoDExNi40OTI0MDNdW8KgwqBU MzI0XSBtZWdhcmFpZF9zYXMgMDAwMDowNjowMC4wOiBTZWN1cmUgSkJPRCBzdXBwb3J0CToKPiBZ ZXMKPiBbwqDCoDExNi40OTk4ODddW8KgwqBUMzI0XSBtZWdhcmFpZF9zYXMgMDAwMDowNjowMC4w OiBOVk1lIHBhc3N0aHJ1IHN1cHBvcnQJOgo+IE5vCj4gW8KgwqAxMTYuNTA3NDgwXVvCoMKgVDMy NF0gbWVnYXJhaWRfc2FzIDAwMDA6MDY6MDAuMDogRlcgcHJvdmlkZWQKPiBbwqDCoDExNi42MTI1 MjNdW8KgwqBUMzI0XSBtZWdhcmFpZF9zYXMgMDAwMDowNjowMC4wOiBOVk1FIHBhZ2Ugc2l6ZQk6 ICgwKQo+IFvCoMKgMTE2LjYyOTk5MV1bwqDCoFQzMjRdIG1lZ2FyYWlkX3NhcyAwMDAwOjA2OjAw LjA6IElOSVQgYWRhcHRlciBkb25lCj4gW8KgwqAxMTYuNzE0Nzg5XVvCoMKgVDMyNF0gbWVnYXJh aWRfc2FzIDAwMDA6MDY6MDAuMDogcGNpIGlkCQk6Cj4gKDB4MTAwMCkvKDB4MDAxNykvKDB4MWQ0 OSkvKDB4MDUwMCkKPiBbwqDCoDExNi43MjQyMjhdW8KgwqBUMzI0XSBtZWdhcmFpZF9zYXMgMDAw MDowNjowMC4wOiB1bmV2ZW5zcGFuIHN1cHBvcnQJOiBubwo+IFvCoMKgMTE2LjczMTUxOF1bwqDC oFQzMjRdIG1lZ2FyYWlkX3NhcyAwMDAwOjA2OjAwLjA6IGZpcm13YXJlIGNyYXNoIGR1bXAJOgo+ IG5vCj4gW8KgwqAxMTYuNzM4OTgxXVvCoMKgVDMyNF0gbWVnYXJhaWRfc2FzIDAwMDA6MDY6MDAu MDogamJvZCBzeW5jIG1hcAkJOgo+IHllcwo+IFvCoMKgMTE2Ljc4NzQzM11bwqDCoFQzMjRdIHNj c2kgaG9zdDA6IEF2YWdvIFNBUyBiYXNlZCBNZWdhUkFJRCBkcml2ZXIKPiBbwqDCoDExNy4wODEw ODhdW8KgwqBUMzI0XSBzY3NpIDA6MDowOjA6IERpcmVjdC0KPiBBY2Nlc3PCoMKgwqDCoMKgTEVO T1ZPwqDCoMKgU1Q5MDBNTTAxNjjCoMKgwqDCoMKgwqBMNTg3IFBROiAwIEFOU0k6IDYKPiAKPiBb MV0gaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvcGF0Y2h3b3JrL2NvdmVyLzEwNzg5NjAvCj4gCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxp bmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxp bnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==