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Mon, 2 Sep 2019 00:26:07 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by whitealder.osuosl.org (Postfix) with ESMTPS id BDD718646F for ; Mon, 2 Sep 2019 00:26:07 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Sep 2019 17:26:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,457,1559545200"; d="scan'208";a="381712188" Received: from genxtest-ykzhao.sh.intel.com (HELO [10.239.143.71]) ([10.239.143.71]) by fmsmga005.fm.intel.com with ESMTP; 01 Sep 2019 17:26:06 -0700 Subject: Re: [RFC PATCH 09/15] drivers/acrn: add passthrough device support To: Dan Carpenter References: <1565922356-4488-1-git-send-email-yakui.zhao@intel.com> <1565922356-4488-10-git-send-email-yakui.zhao@intel.com> <20190816130546.GA3632@kadam> From: "Zhao, Yakui" Message-ID: <32aef63c-725a-09ff-5419-179eb8bd534a@intel.com> Date: Mon, 2 Sep 2019 08:18:35 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20190816130546.GA3632@kadam> Content-Language: en-US X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, Gao@osuosl.org, Shiqing , Jason Chen CJ Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" CgpPbiAyMDE55bm0MDjmnIgxNuaXpSAyMTowNSwgRGFuIENhcnBlbnRlciB3cm90ZToKPiBPbiBG cmksIEF1ZyAxNiwgMjAxOSBhdCAxMDoyNTo1MEFNICswODAwLCBaaGFvIFlha3VpIHdyb3RlOgo+ PiArCWNhc2UgSUNfQVNTSUdOX1BUREVWOiB7Cj4+ICsJCXVuc2lnbmVkIHNob3J0IGJkZjsKPj4g Kwo+PiArCQlpZiAoY29weV9mcm9tX3VzZXIoJmJkZiwgKHZvaWQgKilpb2N0bF9wYXJhbSwKPiAK PiBUaGlzIGNhc3RpbmcgaXMgdWdseSBhbmQgeW91IGFsc28gbmVlZCBhIF9fdXNlciB0YWcgZm9y IFNwYXJzZS4gIERvCj4gc29tZXRoaW5nIGxpa2UgInZvaWQgX191c2VyICpwID0gaW9jdGxfcGFy YW07IgoKU3VyZS4gVGhlIF9fdXNlciB0YWcgd2lsbCBiZSBhZGRlZCBmb3IgdGhlIGlvY3RsX3Bh cmFtIHBhcmFtZXRlciBvZiAKY29weV9mcm9tL3RvX3VzZXIuCgo+IAo+PiArCQkJCSAgIHNpemVv Zih1bnNpZ25lZCBzaG9ydCkpKQo+PiArCQkJcmV0dXJuIC1FRkFVTFQ7Cj4+ICsKPj4gKwkJcmV0 ID0gaGNhbGxfYXNzaWduX3B0ZGV2KHZtLT52bWlkLCBiZGYpOwo+PiArCQlpZiAocmV0IDwgMCkg ewo+PiArCQkJcHJfZXJyKCJhY3JuOiBmYWlsZWQgdG8gYXNzaWduIHB0ZGV2IVxuIik7Cj4+ICsJ CQlyZXR1cm4gLUVGQVVMVDsKPiAKPiBQcmVzZXJ2ZSB0aGUgZXJyb3IgY29kZS4gICJyZXR1cm4g cmV0OyIuCk9rLiBJdCB3aWxsIHByZXNlcnZlciB0aGUgZXJyIGNvZGUuCgo+IAo+PiArCQl9Cj4+ ICsJCWJyZWFrOwo+PiArCX0KPj4gKwljYXNlIElDX0RFQVNTSUdOX1BUREVWOiB7Cj4+ICsJCXVu c2lnbmVkIHNob3J0IGJkZjsKPj4gKwo+PiArCQlpZiAoY29weV9mcm9tX3VzZXIoJmJkZiwgKHZv aWQgKilpb2N0bF9wYXJhbSwKPj4gKwkJCQkgICBzaXplb2YodW5zaWduZWQgc2hvcnQpKSkKPj4g KwkJCXJldHVybiAtRUZBVUxUOwo+PiArCj4+ICsJCXJldCA9IGhjYWxsX2RlYXNzaWduX3B0ZGV2 KHZtLT52bWlkLCBiZGYpOwo+PiArCQlpZiAocmV0IDwgMCkgewo+PiArCQkJcHJfZXJyKCJhY3Ju OiBmYWlsZWQgdG8gZGVhc3NpZ24gcHRkZXYhXG4iKTsKPj4gKwkJCXJldHVybiAtRUZBVUxUOwo+ PiArCQl9Cj4+ICsJCWJyZWFrOwo+PiArCX0KPj4gKwo+PiArCWNhc2UgSUNfU0VUX1BUREVWX0lO VFJfSU5GTzogewo+PiArCQlzdHJ1Y3QgaWNfcHRkZXZfaXJxIGljX3B0X2lycTsKPj4gKwkJc3Ry dWN0IGhjX3B0ZGV2X2lycSAqaGNfcHRfaXJxOwo+PiArCj4+ICsJCWlmIChjb3B5X2Zyb21fdXNl cigmaWNfcHRfaXJxLCAodm9pZCAqKWlvY3RsX3BhcmFtLAo+PiArCQkJCSAgIHNpemVvZihpY19w dF9pcnEpKSkKPj4gKwkJCXJldHVybiAtRUZBVUxUOwo+PiArCj4+ICsJCWhjX3B0X2lycSA9IGtt YWxsb2Moc2l6ZW9mKCpoY19wdF9pcnEpLCBHRlBfS0VSTkVMKTsKPj4gKwkJaWYgKCFoY19wdF9p cnEpCj4+ICsJCQlyZXR1cm4gLUVOT01FTTsKPj4gKwo+PiArCQltZW1jcHkoaGNfcHRfaXJxLCAm aWNfcHRfaXJxLCBzaXplb2YoKmhjX3B0X2lycSkpOwo+IAo+IFVzZSBtZW1kdXBfdXNlcigpLgoK T0suIFRoZSBtZW1kdXBfdXNlciB3aWxsIGJlIHVzZWQuCgo+IAo+PiArCj4+ICsJCXJldCA9IGhj YWxsX3NldF9wdGRldl9pbnRyX2luZm8odm0tPnZtaWQsCj4+ICsJCQkJCQl2aXJ0X3RvX3BoeXMo aGNfcHRfaXJxKSk7Cj4+ICsJCWtmcmVlKGhjX3B0X2lycSk7Cj4+ICsJCWlmIChyZXQgPCAwKSB7 Cj4+ICsJCQlwcl9lcnIoImFjcm46IGZhaWxlZCB0byBzZXQgaW50ciBpbmZvIGZvciBwdGRldiFc biIpOwo+PiArCQkJcmV0dXJuIC1FRkFVTFQ7Cj4+ICsJCX0KPj4gKwo+PiArCQlicmVhazsKPj4g Kwl9Cj4gCj4gcmVnYXJkcywKPiBkYW4gY2FycGVudGVyCj4gCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmRldmVsIG1haWxpbmcgbGlzdApkZXZlbEBsaW51 eGRyaXZlcnByb2plY3Qub3JnCmh0dHA6Ly9kcml2ZXJkZXYubGludXhkcml2ZXJwcm9qZWN0Lm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2RyaXZlcmRldi1kZXZlbAo=