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[143.159.148.207]) by smtp.gmail.com with ESMTPSA id b186sm3626984wmd.16.2019.09.25.02.16.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Sep 2019 02:16:52 -0700 (PDT) Date: Wed, 25 Sep 2019 10:16:50 +0100 From: Wei Liu To: Paul Durrant Message-ID: <20190925091650.qgnfkabob6zrfebd@debian> References: <20190918104113.3294-1-paul.durrant@citrix.com> <20190918104113.3294-2-paul.durrant@citrix.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190918104113.3294-2-paul.durrant@citrix.com> User-Agent: NeoMutt/20180716 Subject: Re: [Xen-devel] [PATCH v13 1/4] remove late (on-demand) construction of IOMMU page tables X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Petre Pircalabu , Stefano Stabellini , Wei Liu , Razvan Cojocaru , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Tamas K Lengyel , Jan Beulich , Alexandru Isaila , xen-devel@lists.xenproject.org, Volodymyr Babchuk , Roger Pau =?utf-8?B?TW9ubsOp?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gV2VkLCBTZXAgMTgsIDIwMTkgYXQgMTE6NDE6MTBBTSArMDEwMCwgUGF1bCBEdXJyYW50IHdy b3RlOgo+IE5vdyB0aGF0IHRoZXJlIGlzIGEgcGVyLWRvbWFpbiBJT01NVS1lbmFibGUgZmxhZywg d2hpY2ggc2hvdWxkIGJlIHNldCBpZgo+IGFueSBkZXZpY2UgaXMgZ29pbmcgdG8gYmUgcGFzc2Vk IHRocm91Z2gsIHN0b3AgZGVmZXJyaW5nIHBhZ2UgdGFibGUKPiBjb25zdHJ1Y3Rpb24gdW50aWwg dGhlIGFzc2lnbm1lbnQgaXMgZG9uZS4gQWxzbyBkb24ndCB0ZWFyIGRvd24gdGhlIHRhYmxlcwo+ IGFnYWluIHdoZW4gdGhlIGxhc3QgZGV2aWNlIGlzIGRlLWFzc2lnbmVkOyBkZWZlciB0aGF0IHRh c2sgdW50aWwgZG9tYWluCj4gZGVzdHJ1Y3Rpb24uCj4gCj4gVGhpcyBhbGxvd3MgdGhlIGhhc19p b21tdV9wdCgpIGhlbHBlciBhbmQgaW9tbXVfc3RhdHVzIGVudW1lcmF0aW9uIHRvIGJlCj4gcmVt b3ZlZC4gQ2FsbHMgdG8gaGFzX2lvbW11X3B0KCkgYXJlIHNpbXBseSByZXBsYWNlZCBieSBjYWxs cyB0bwo+IGlzX2lvbW11X2VuYWJsZWQoKS4gUmVtYWluaW5nIG9wZW4tY29kZWQgdGVzdHMgb2Yg aW9tbXVfaGFwX3B0X3NoYXJlIGNhbgo+IGFsc28gYmUgcmVwbGFjZWQgYnkgY2FsbHMgdG8gaW9t bXVfdXNlX2hhcF9wdCgpLgo+IFRoZSBhcmNoX2lvbW11X3BvcHVsYXRlX3BhZ2VfdGFibGUoKSBh bmQgaW9tbXVfY29uc3RydWN0KCkgZnVuY3Rpb25zIGJlY29tZQo+IHJlZHVuZGFudCwgYXMgZG9l cyB0aGUgJ3N0cmljdCBtb2RlJyBkb20wIHBhZ2VfbGlzdCBtYXBwaW5nIGNvZGUgaW4KPiBpb21t dV9od2RvbV9pbml0KCksIGFuZCBpb21tdV90ZWFyZG93bigpIGNhbiBiZSBtYWRlIHN0YXRpYyBp cyBpdHMgb25seQo+IHJlbWFpbmluZyBjYWxsZXIsIGlvbW11X2RvbWFpbl9kZXN0cm95KCksIGlz IHdpdGhpbiB0aGUgc2FtZSBzb3VyY2UKPiBtb2R1bGUuCj4gCj4gQWxsIGluIGFsbCwgYWJvdXQg MjIwIGxpbmVzIG9mIGNvZGUgYXJlIHJlbW92ZWQgZnJvbSB0aGUgaHlwZXJ2aXNvciAoYXQKPiB0 aGUgZXhwZW5zZSBvZiBzb21lIGFkZGl0aW9ucyBpbiB0aGUgdG9vbHN0YWNrKS4KPiAKPiBOT1RF OiBUaGlzIHBhdGNoIHdpbGwgY2F1c2UgYSBzbWFsbCBhbW91bnQgb2YgZXh0cmEgcmVzb3VyY2Ug dG8gYmUgdXNlZAo+ICAgICAgIHRvIGFjY29tbW9kYXRlIElPTU1VIHBhZ2UgdGFibGVzIHRoYXQg bWF5IG5ldmVyIGJlIHVzZWQsIHNpbmNlIHRoZQo+ICAgICAgIHBlci1kb21haW4gSU9NTVUtZW5h YmxlIGZsYWcgaXMgY3VycmVudGx5IHNldCB0byB0aGUgdmFsdWUgb2YgdGhlCj4gICAgICAgZ2xv YmFsIGlvbW11X2VuYWJsZSBmbGFnLiBBIHN1YnNlcXVlbnQgcGF0Y2ggd2lsbCBhZGQgYW4gb3B0 aW9uIHRvCj4gICAgICAgdGhlIHRvb2xzdGFjayB0byBhbGxvdyBpdCB0byBiZSB0dXJuZWQgb2Zm IGlmIHRoZXJlIGlzIG5vIGludGVudGlvbgo+ICAgICAgIHRvIGFzc2lnbiBwYXNzdGhyb3VnaCBo YXJkd2FyZSB0byB0aGUgZG9tYWluLgo+ICAgICAgIFRvIGFjY291bnQgZm9yIHRoZSBleHRyYSBy ZXNvdXJjZSwgJ2lvbW11X21lbWtiJyBoYXMgYmVlbiBhZGRlZCB0bwo+ICAgICAgIGRvbWFpbl9i dWlsZF9pbmZvLiBUaGlzIHBhdGNoIHNldHMgaXQgdG8gYSB2YWx1ZSBjYWxjdWxhdGVkIGJhc2Vk Cj4gICAgICAgb24gdGhlIGRvbWFpbidzIG1heGltdW0gbWVtb3J5IHdoZW4gdGhlIFAyTSBzaGFy aW5nIGlzIGVpdGhlciBub3QKPiAgICAgICBzdXBwb3J0ZWQgb3IgZ2xvYmFsbHkgZGlzYWJsZWQs IG9yIHplcm8gb3RoZXJ3aXNlLiBIb3dldmVyLCB3aGVuCj4gICAgICAgdGhlIHRvb2xzdGFjayBv cHRpb24gbWVudGlvbmVkIGFib3ZlIGlzIGFkZGVkLCBpdCB3aWxsIGFsc28gYmUgemVybwo+ICAg ICAgIGlmIHRoZSBwZXItZG9tYWluIElPTU1VLWVuYWJsZSBmbGFnIGlzIHR1cm5lZCBvZmYuCj4g Cj4gU2lnbmVkLW9mZi1ieTogUGF1bCBEdXJyYW50IDxwYXVsLmR1cnJhbnRAY2l0cml4LmNvbT4K PiBSZXZpZXdlZC1ieTogQWxleGFuZHJ1IElzYWlsYSA8YWlzYWlsYUBiaXRkZWZlbmRlci5jb20+ Cj4gQWNrZWQtYnk6IFJhenZhbiBDb2pvY2FydSA8cmNvam9jYXJ1QGJpdGRlZmVuZGVyLmNvbT4K PiBSZXZpZXdlZC1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29tPgo+IEFja2VkLWJ5 OiBKdWxpZW4gR3JhbGwgPGp1bGllbi5ncmFsbEBhcm0uY29tPgoKQWNrZWQtYnk6IFdlaSBMaXUg PHdsQHhlbi5vcmc+CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9y ZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs