From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41665) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bcuc0-0007C7-LV for qemu-devel@nongnu.org; Thu, 25 Aug 2016 09:22:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bcubw-0002zh-IQ for qemu-devel@nongnu.org; Thu, 25 Aug 2016 09:22:28 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:52866) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bcubv-0002tp-Ua for qemu-devel@nongnu.org; Thu, 25 Aug 2016 09:22:24 -0400 From: "Gaohaifeng (A)" Date: Thu, 25 Aug 2016 13:21:47 +0000 Message-ID: <47CEA9C0E570484FBF22EF0D7EBCE5B5357D9022@szxema505-mbx.china.huawei.com> References: <47CEA9C0E570484FBF22EF0D7EBCE5B5357D7C69@szxema505-mbx.china.huawei.com> <20160825013334.GH22605@redhat.com> In-Reply-To: <20160825013334.GH22605@redhat.com> Content-Language: zh-CN Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] A question about this commit 9894dc0cdcc397ee5b26370bc53da6d360a363c2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Daniel P. Berrange" Cc: "pbonzini@redhat.com" , "Lilijun (Jerry)" , zangchuanqiang , qemu devel T24gVHVlLCBBdWcgMjMsIDIwMTYgYXQgMDg6NTc6NDRBTSArMDAwMCwgR2FvaGFpZmVuZyAoQSkg d3JvdGU6DQo+IEhpIERhbmllbCAmIFBhb2xvLA0KPiA+IA0KPiA+IENvbW1pdCA5ODk0ZGMwYyAi Y2hhcjogY29udmVydCBmcm9tIEdJT0NoYW5uZWwgdG8gUUlPQ2hhbm5lbCIsIGFib3V0DQo+ID4g DQo+ID4gdGhlIGJlbG93IGNvZGUgc2VnbWVudDoNCj4gPiANCj4gPiAtc3RhdGljIGdib29sZWFu IHRjcF9jaHJfcmVhZChHSU9DaGFubmVsICpjaGFuLCBHSU9Db25kaXRpb24gY29uZCwgDQo+ID4g dm9pZCAqb3BhcXVlKQ0KPiA+ICtzdGF0aWMgZ2Jvb2xlYW4gdGNwX2Nocl9yZWFkKFFJT0NoYW5u ZWwgKmNoYW4sIEdJT0NvbmRpdGlvbiBjb25kLCANCj4gPiArdm9pZCAqb3BhcXVlKQ0KPiA+IHsN Cj4gPiAgICAgIENoYXJEcml2ZXJTdGF0ZSAqY2hyID0gb3BhcXVlOw0KPiA+ICAgICAgVENQQ2hh ckRyaXZlciAqcyA9IGNoci0+b3BhcXVlOw0KPiA+IEBAIC0yOTM4LDkgKzI4MDEsNyBAQCBzdGF0 aWMgZ2Jvb2xlYW4gdGNwX2Nocl9yZWFkKEdJT0NoYW5uZWwgKmNoYW4sIEdJT0NvbmRpdGlvbiBj b25kLCB2b2lkICpvcGFxdWUpDQo+ID4gICAgICBpZiAobGVuID4gcy0+bWF4X3NpemUpDQo+ID4g ICAgICAgICAgbGVuID0gcy0+bWF4X3NpemU7DQo+ID4gICAgICBzaXplID0gdGNwX2Nocl9yZWN2 KGNociwgKHZvaWQgKilidWYsIGxlbik7DQo+ID4gLSAgICBpZiAoc2l6ZSA9PSAwIHx8DQo+ID4g LSAgICAgICAgKHNpemUgPCAwICYmDQo+ID4gLSAgICAgICAgIHNvY2tldF9lcnJvcigpICE9IEVB R0FJTiAmJiBzb2NrZXRfZXJyb3IoKSAhPSBFV09VTERCTE9DSykpIHsNCj4gPiArICAgIGlmIChz aXplID09IDAgfHwgc2l6ZSA9PSAtMSkgew0KPiA+ICAgICAgICAgIC8qIGNvbm5lY3Rpb24gY2xv c2VkICovDQo+ID4gICAgICAgICAgdGNwX2Nocl9kaXNjb25uZWN0KGNocik7DQo+ID4gICAgICB9 IGVsc2UgaWYgKHNpemUgPiAwKSB7DQo+ID4gDQo+ID4gVGhlIG9sZCB2ZXJzaW9uIHdpbGwgbm90 IGNhbGwgdGNwX2Nocl9kaXNjb25uZWN0IHdoZW4gZXJyb3IgaXMgbm90IA0KPiA+IEVBR0FJTi4N Cj4gPiBUaGUgbmV3IHZlcnNpb24gd2lsbCBjYWxsIHRjcF9jaHJfZGlzY29ubmVjdCB3aGVuIHNp emU9PS0xLiBGcm9tIHRoZSANCj4gPiB0Y3BfY2hyX3JlY3YgZnVuY3Rpb24gd2Ugc2VlIEVBR0lO IHdpbGwgcmV0dXJuIC0xLCBzbyBFQUdJTiB3aWxsIGNhbGwgDQo+ID4gdGNwX2Nocl9kaXNjb25u ZWN0Lg0KPiA+IA0KPiA+IFdlIG1lZXQgYW4gaXNzdWUgd2hlbiBHdWVzdCBWTSB1c2UgRFBESygx LjYuMCkgbDJmd2QsIGl0IG1heSBleGl0IA0KPiA+IHNpbmNlIGxpbmsgc3RhdHVzIGlzIG5vdCB1 cC4gVGhlIGxpbmsgaXMgZG93biBiZWNhdXNlIA0KPiA+IHRjcF9jaHJfZGlzY29ubmVjdCB3aWxs IHNldCBpdC4NCj4gPiANCj4gPiBDYW4geW91IGV4cGxhaW4gaXQgd2h5IEVBR0lOIGhlcmUgY2hh bmdlcyB0aGUgYmVoYXZpb3IgPw0KDQo+IHRjcF9jaHJfcmVhZCBpcyB1c2VkIGluIGEgY2FsbCB0 byBpb19hZGRfd2F0Y2hfcG9sbCgpIHdoaWNoIHNldHMgdXAgYW4gZXZlbnQgbG9vcCB3YXRjaCBz byB0aGF0IHRjcF9jaHJfcmVhZCBpcyBjYWxsZWQgd2hlbiB0aGVyZSBpcyBpbmNvbWluZyBkYXRh IHRvIGJlIHJlYWQuICBJT1csIHdoZW4gdGNwX2Nocl9yZWFkIGlzIGludm9rZWQsIEkgd291bGQg YWx3YXlzIGV4cGVjdCB0aGF0IGF0IGxlYXN0IDEgYnl0ZSBpcyBhdmFpbGFibGUsIGFuZCBzbyBF QUdBSU4gc2hvdWxkIG5vdCBvY2N1cnIuDQo+IA0KPiBTbyBJJ20gcHV6emxlZCB3aHkgeW91IHdv dWxkIGdldCBFQUdBSU4gYXQgYWxsLCB1bmxlc3MgdGhlcmUgaXMgc29tZSBraW5kIG9mIHJhY2Ug d2l0aCBvdGhlciBjb2RlIGFsc28gY29uc3VtaW5nIGJ5dGVzIGZyb20gdGhlIHNhbWUgc29ja2V0 Lg0KDQpJdCBjb3VsZCBlYXNpbHkgcmVwcm9kdWNlIHRoaXMgd2hlbiByZXBlYXRpbmcgJ3JtbW9k IHZpcnRpb19uZXQ7bW9kcHJvYmUgdmlydGlvX25ldCcuDQpUaGUgY2FsbCBzdGFjazoNCiMwICB0 Y3BfY2hyX2Rpc2Nvbm5lY3QgKGNocj0weDdmMDlkNWIyZDU0MCkgYXQgcWVtdS1jaGFyLmM6Mjg2 Nw0KIzEgIDB4MDAwMDdmMDlkNDNiMjEwNiBpbiB0Y3BfY2hyX3JlYWQgKGNoYW49MHg3ZjA5ZDVi MmRmMzAsIGNvbmQ9R19JT19JTiwgb3BhcXVlPTB4N2YwOWQ1YjJkNTQwKSBhdCBxZW11LWNoYXIu YzoyOTE3DQojMiAgMHgwMDAwN2YwOWQ0NjM2NGZhIGluIHFpb19jaGFubmVsX2ZkX3NvdXJjZV9k aXNwYXRjaCAoc291cmNlPTB4N2YwOTNlNjAzYjMwLCBjYWxsYmFjaz0weDdmMDlkNDNiMWZjYiA8 dGNwX2Nocl9yZWFkPiwgdXNlcl9kYXRhPTB4N2YwOWQ1YjJkNTQwKSBhdCBpby9jaGFubmVsLXdh dGNoLmM6ODQNCiMzICAweDAwMDA3ZjA5ZDJlOTk5OWEgaW4gZ19tYWluX2NvbnRleHRfZGlzcGF0 Y2ggKCkgZnJvbSAvbGliNjQvbGliZ2xpYi0yLjAuc28uMA0KIzQgIDB4MDAwMDdmMDlkNDViZmM5 NiBpbiBnbGliX3BvbGxmZHNfcG9sbCAoKSBhdCBtYWluLWxvb3AuYzoyMTMNCiM1ICAweDAwMDA3 ZjA5ZDQ1YmZkNzMgaW4gb3NfaG9zdF9tYWluX2xvb3Bfd2FpdCAodGltZW91dD05OTE4NTMpIGF0 IG1haW4tbG9vcC5jOjI1OA0KIzYgIDB4MDAwMDdmMDlkNDViZmUyMyBpbiBtYWluX2xvb3Bfd2Fp dCAobm9uYmxvY2tpbmc9MCkgYXQgbWFpbi1sb29wLmM6NTA2DQojNyAgMHgwMDAwN2YwOWQ0M2Ji ZGQyIGluIG1haW5fbG9vcCAoKSBhdCB2bC5jOjIxMTkNCiM4ICAweDAwMDA3ZjA5ZDQzYzM4MGUg aW4gbWFpbiAoYXJnYz01NiwgYXJndj0weDdmZmU3YWQ2NjlhOCwgZW52cD0weDdmZmU3YWQ2NmI3 MCkgYXQgdmwuYzo0ODk2DQooZ2RiKSBmIDENCiMxICAweDAwMDA3ZjA5ZDQzYjIxMDYgaW4gdGNw X2Nocl9yZWFkIChjaGFuPTB4N2YwOWQ1YjJkZjMwLCBjb25kPUdfSU9fSU4sIG9wYXF1ZT0weDdm MDlkNWIyZDU0MCkgYXQgcWVtdS1jaGFyLmM6MjkxNw0KMjkxNwkgICAgICAgIHRjcF9jaHJfZGlz Y29ubmVjdChjaHIpOw0KKGdkYikgcCBlcnJubw0KJDEgPSAxMQ0KDQpFQUdBSU4gPSAxMQ0KDQo+ IA0KPiBSZWdhcmRzLA0KPiBEYW5pZWwNCg==