From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Raslan, KarimAllah" Subject: Re: [PATCH v4 02/14] X86/nVMX: handle_vmptrld: Copy the VMCS12 directly from guest memory Date: Thu, 3 Jan 2019 14:22:52 +0000 Message-ID: <1546525372.11779.11.camel@amazon.de> References: <1543829467-18025-1-git-send-email-karahmed@amazon.de> <1543829467-18025-3-git-send-email-karahmed@amazon.de> <8a2a3b3d-b16c-890c-e6cd-69fbfc06506a@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: "linux-kernel@vger.kernel.org" , "rkrcmar@redhat.com" , "kvm@vger.kernel.org" To: "jmattson@google.com" , "pbonzini@redhat.com" Return-path: In-Reply-To: <8a2a3b3d-b16c-890c-e6cd-69fbfc06506a@redhat.com> Content-Language: en-US Content-ID: <695688FC0A71D349BBD596FBCF191D86@amazon.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org T24gRnJpLCAyMDE4LTEyLTIxIGF0IDE2OjIwICswMTAwLCBQYW9sbyBCb256aW5pIHdyb3RlOg0K PiBPbiAwNi8xMi8xOCAwMDoxMCwgSmltIE1hdHRzb24gd3JvdGU6DQo+ID4gDQo+ID4gT24gTW9u LCBEZWMgMywgMjAxOCBhdCAxOjMxIEFNIEthcmltQWxsYWggQWhtZWQgPGthcmFobWVkQGFtYXpv bi5kZT4gd3JvdGU6DQo+ID4gPiANCj4gPiA+IA0KPiA+ID4gQ29weSB0aGUgVk1DUzEyIGRpcmVj dGx5IGZyb20gZ3Vlc3QgbWVtb3J5IGluc3RlYWQgb2YgdGhlIG1hcC0+Y29weS0+dW5tYXANCj4g PiA+IHNlcXVlbmNlLiBUaGlzIGFsc28gYXZvaWRzIHVzaW5nIGt2bV92Y3B1X2dwYV90b19wYWdl KCkgYW5kIGttYXAoKSB3aGljaA0KPiA+ID4gYXNzdW1lcyB0aGF0IHRoZXJlIGlzIGEgInN0cnVj dCBwYWdlIiBmb3IgZ3Vlc3QgbWVtb3J5Lg0KPiA+ID4gDQo+ID4gPiBTaWduZWQtb2ZmLWJ5OiBL YXJpbUFsbGFoIEFobWVkIDxrYXJhaG1lZEBhbWF6b24uZGU+DQo+ID4gPiAtLS0NCj4gPiA+IHYz IC0+IHY0Og0KPiA+ID4gLSBSZXR1cm4gVk1YRVJSX1ZNUFRSTERfSU5DT1JSRUNUX1ZNQ1NfUkVW SVNJT05fSUQgb24gZmFpbHVyZSAoam1hdHRzb25AKQ0KPiA+ID4gdjEgLT4gdjI6DQo+ID4gPiAt IE1hc3NhZ2UgY29tbWl0IG1lc3NhZ2UgYSBiaXQuDQo+ID4gPiAtLS0NCj4gPiA+ICBhcmNoL3g4 Ni9rdm0vdm14LmMgfCAyNCArKysrKysrKysrKystLS0tLS0tLS0tLS0NCj4gPiA+ICAxIGZpbGUg Y2hhbmdlZCwgMTIgaW5zZXJ0aW9ucygrKSwgMTIgZGVsZXRpb25zKC0pDQo+ID4gPiANCj4gPiA+ IGRpZmYgLS1naXQgYS9hcmNoL3g4Ni9rdm0vdm14LmMgYi9hcmNoL3g4Ni9rdm0vdm14LmMNCj4g PiA+IGluZGV4IGI4NGYyMzAuLjc1ODE3Y2IgMTAwNjQ0DQo+ID4gPiAtLS0gYS9hcmNoL3g4Ni9r dm0vdm14LmMNCj4gPiA+ICsrKyBiL2FyY2gveDg2L2t2bS92bXguYw0KPiA+ID4gQEAgLTkzMDEs MjAgKzkzMDEsMjIgQEAgc3RhdGljIGludCBoYW5kbGVfdm1wdHJsZChzdHJ1Y3Qga3ZtX3ZjcHUg KnZjcHUpDQo+ID4gPiAgICAgICAgICAgICAgICAgcmV0dXJuIDE7DQo+ID4gPiANCj4gPiA+ICAg ICAgICAgaWYgKHZteC0+bmVzdGVkLmN1cnJlbnRfdm1wdHIgIT0gdm1wdHIpIHsNCj4gPiA+IC0g ICAgICAgICAgICAgICBzdHJ1Y3Qgdm1jczEyICpuZXdfdm1jczEyOw0KPiA+ID4gLSAgICAgICAg ICAgICAgIHN0cnVjdCBwYWdlICpwYWdlOw0KPiA+ID4gLSAgICAgICAgICAgICAgIHBhZ2UgPSBr dm1fdmNwdV9ncGFfdG9fcGFnZSh2Y3B1LCB2bXB0cik7DQo+ID4gPiAtICAgICAgICAgICAgICAg aWYgKGlzX2Vycm9yX3BhZ2UocGFnZSkpDQo+ID4gPiAtICAgICAgICAgICAgICAgICAgICAgICBy ZXR1cm4gbmVzdGVkX3ZteF9mYWlsSW52YWxpZCh2Y3B1KTsNCj4gPiA+ICsgICAgICAgICAgICAg ICBzdHJ1Y3Qgdm1jczEyICpuZXdfdm1jczEyID0gKHN0cnVjdCB2bWNzMTIgKilfX2dldF9mcmVl X3BhZ2UoR0ZQX0tFUk5FTCk7DQo+ID4gPiArDQo+ID4gPiArICAgICAgICAgICAgICAgaWYgKCFu ZXdfdm1jczEyIHx8DQo+ID4gPiArICAgICAgICAgICAgICAgICAgIGt2bV9yZWFkX2d1ZXN0KHZj cHUtPmt2bSwgdm1wdHIsIG5ld192bWNzMTIsDQo+ID4gPiArICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgIHNpemVvZigqbmV3X3ZtY3MxMikpKSB7DQo+ID4gDQo+ID4gSXNuJ3QgdGhp cyBhIGxvdCBzbG93ZXIgdGhhbiBrbWFwKCkgd2hlbiB0aGVyZSBpcyBhIHN0cnVjdCBwYWdlPw0K PiANCj4gSXQgd291bGRuJ3QgYmUgc2xvd2VyIGlmIGhlIHJlYWQgZGlyZWN0bHkgaW50byBjYWNo ZWRfdm1jczEyLiAgSG93ZXZlciwNCj4gYXMgaXQgaXMgbm93LCBpdCdzIGRvaW5nIHR3byByZWFk cyBpbnN0ZWFkIG9mIG9uZS4gIEJ5IGRvaW5nIHRoaXMsIHRoZQ0KPiBFTk9NRU0gY2FzZSBhbHNv IGRpc2FwcGVhcnMuDQoNCkkgY2FuIG5vdCB1c2UgImNhY2hlZF92bWNzMTIiIGRpcmVjdGx5IGhl cmUgYmVjYXVzZSBpdHMgb2xkIGNvbnRlbnRzIHdpbGwgYmXCoA0KdXNlZCBmb3IgIm5lc3RlZF9y ZWxlYXNlX3ZtY3MxMiguLikiIGEgZmV3IGxpbmVzIGJlbG93IChpLmUuIGl0IHdpbGwgYmUgZmx1 c2hlZMKgDQppbnRvIGd1ZXN0IG1lbW9yeSkuDQoNCkkgY2FuIGp1c3Qgc3dpdGNoIHRoaXMgdG8g dGhlIG5ldyBBUEkgaW50cm9kdWNlZCBhIGZldyBwYXRjaGVzIGxhdGVyIGFuZCB0aGF0wqANCndv dWxkIGhhdmUgdGhlIHNhbWUgc2VtYW50aWNzIGZvciBub3JtYWwgdXNlLWNhc2VzIGFzIGJlZm9y ZS4NCg0KPiANCj4gUGFvbG8NCgoKCkFtYXpvbiBEZXZlbG9wbWVudCBDZW50ZXIgR2VybWFueSBH bWJICktyYXVzZW5zdHIuIDM4CjEwMTE3IEJlcmxpbgpHZXNjaGFlZnRzZnVlaHJlcjogQ2hyaXN0 aWFuIFNjaGxhZWdlciwgUmFsZiBIZXJicmljaApVc3QtSUQ6IERFIDI4OSAyMzcgODc5CkVpbmdl dHJhZ2VuIGFtIEFtdHNnZXJpY2h0IENoYXJsb3R0ZW5idXJnIEhSQiAxNDkxNzMgQgoK