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Fri, 15 Oct 2021 01:24:08 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw/nA+3l2rR57+xSkS94d2Z5z+fm5u6cjavYeX5oNBR8m5wROIDtX5M3W5LEKVAenv0EB+yhg== X-Received: by 2002:a05:6a00:a1e:b0:44c:7602:e1ee with SMTP id p30-20020a056a000a1e00b0044c7602e1eemr10474774pfh.80.1634286248166; Fri, 15 Oct 2021 01:24:08 -0700 (PDT) Received: from wangxiaodeMacBook-Air.local ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id w18sm4536129pfj.170.2021.10.15.01.24.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Oct 2021 01:24:07 -0700 (PDT) Subject: Re: [PATCH v5 5/8] vdpa: min vq num of vdpa device cannot be greater than max vq num To: Wu Zongyong , virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com References: <5b75093fc4a866a4502485ec208ca0e55440bdf7.1634281805.git.wuzongyong@linux.alibaba.com> From: Jason Wang Message-ID: <2b3566d6-0c03-7861-ff89-e7a10c689833@redhat.com> Date: Fri, 15 Oct 2021 16:24:04 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <5b75093fc4a866a4502485ec208ca0e55440bdf7.1634281805.git.wuzongyong@linux.alibaba.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Cc: wei.yang1@linux.alibaba.com X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gbk"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" CtTaIDIwMjEvMTAvMTUgz8LO5zM6MTQsIFd1IFpvbmd5b25nINC0tcA6Cj4gSnVzdCBmYWlsZWQg dG8gcHJvYmUgdGhlIHZkcGEgZGV2aWNlIGlmIHRoZSBtaW4gdmlydHF1ZXVlIG51bSByZXR1cm5l ZAo+IGJ5IGdldF92cV9udW1fbWluIGlzIGdyZWF0ZXIgdGhhbiB0aGUgbWF4IHZpcnRxdWV1ZSBu dW0gcmV0dXJuZWQgYnkKPiBnZXRfdnFfbnVtX21heC4KPgo+IFNpZ25lZC1vZmYtYnk6IFd1IFpv bmd5b25nIDx3dXpvbmd5b25nQGxpbnV4LmFsaWJhYmEuY29tPgo+IC0tLQo+ICAgZHJpdmVycy92 ZHBhL3ZkcGEuYyB8IDggKysrKysrKysKPiAgIDEgZmlsZSBjaGFuZ2VkLCA4IGluc2VydGlvbnMo KykKPgo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3ZkcGEvdmRwYS5jIGIvZHJpdmVycy92ZHBhL3Zk cGEuYwo+IGluZGV4IDFkYzEyMWEwN2E5My4uZmQwMTRlY2VjNzExIDEwMDY0NAo+IC0tLSBhL2Ry aXZlcnMvdmRwYS92ZHBhLmMKPiArKysgYi9kcml2ZXJzL3ZkcGEvdmRwYS5jCj4gQEAgLTI2LDgg KzI2LDE2IEBAIHN0YXRpYyBpbnQgdmRwYV9kZXZfcHJvYmUoc3RydWN0IGRldmljZSAqZCkKPiAg IHsKPiAgIAlzdHJ1Y3QgdmRwYV9kZXZpY2UgKnZkZXYgPSBkZXZfdG9fdmRwYShkKTsKPiAgIAlz dHJ1Y3QgdmRwYV9kcml2ZXIgKmRydiA9IGRydl90b192ZHBhKHZkZXYtPmRldi5kcml2ZXIpOwo+ ICsJY29uc3Qgc3RydWN0IHZkcGFfY29uZmlnX29wcyAqb3BzID0gdmRldi0+Y29uZmlnOwo+ICsJ dTMyIG1heF9udW0sIG1pbl9udW0gPSAwOwoKCkFzIGRpc2N1c3NlZCBpbiBwcmV2aW91cyB2ZXJz aW9uLCAxIHNlZW1zIGJldHRlcj8KClRoYW5rcwoKCj4gICAJaW50IHJldCA9IDA7Cj4gICAKPiAr CW1heF9udW0gPSBvcHMtPmdldF92cV9udW1fbWF4KHZkZXYpOwo+ICsJaWYgKG9wcy0+Z2V0X3Zx X251bV9taW4pCj4gKwkJbWluX251bSA9IG9wcy0+Z2V0X3ZxX251bV9taW4odmRldik7Cj4gKwlp ZiAobWF4X251bSA8IG1pbl9udW0pCj4gKwkJcmV0dXJuIC1FSU5WQUw7Cj4gKwo+ICAgCWlmIChk cnYgJiYgZHJ2LT5wcm9iZSkKPiAgIAkJcmV0ID0gZHJ2LT5wcm9iZSh2ZGV2KTsKPiAgIAoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KVmlydHVhbGl6YXRp b24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3Jn Cmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL3ZpcnR1 YWxpemF0aW9u