From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: [PATCH v7 1/5] x86/ioreq server: Release the p2m lock after mmio is handled. Date: Wed, 8 Mar 2017 14:06:02 +0000 Message-ID: <76ac974773124daaabf32b7467cb0196@AMSPEX02CL03.citrite.net> References: <1488979950-10872-1-git-send-email-yu.c.zhang@linux.intel.com> <1488979950-10872-2-git-send-email-yu.c.zhang@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1488979950-10872-2-git-send-email-yu.c.zhang@linux.intel.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: 'Yu Zhang' , "xen-devel@lists.xen.org" Cc: "zhiyuan.lv@intel.com" List-Id: xen-devel@lists.xenproject.org PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBYZW4tZGV2ZWwgW21haWx0bzp4 ZW4tZGV2ZWwtYm91bmNlc0BsaXN0cy54ZW4ub3JnXSBPbiBCZWhhbGYgT2YgWXUNCj4gWmhhbmcN Cj4gU2VudDogMDggTWFyY2ggMjAxNyAxMzozMg0KPiBUbzogeGVuLWRldmVsQGxpc3RzLnhlbi5v cmcNCj4gQ2M6IHpoaXl1YW4ubHZAaW50ZWwuY29tDQo+IFN1YmplY3Q6IFtYZW4tZGV2ZWxdIFtQ QVRDSCB2NyAxLzVdIHg4Ni9pb3JlcSBzZXJ2ZXI6IFJlbGVhc2UgdGhlIHAybSBsb2NrDQo+IGFm dGVyIG1taW8gaXMgaGFuZGxlZC4NCj4gDQo+IFJvdXRpbmUgaHZtZW11bF9kb19pbygpIG1heSBu ZWVkIHRvIHBlZWsgdGhlIHAybSB0eXBlIG9mIGEgZ2ZuIHRvDQo+IHNlbGVjdCB0aGUgaW9yZXEg c2VydmVyLiBGb3IgZXhhbXBsZSwgb3BlcmF0aW9ucyBvbiBnZm5zIHdpdGgNCj4gcDJtX2lvcmVx X3NlcnZlciB0eXBlIHdpbGwgYmUgZGVsaXZlcmVkIHRvIGEgY29ycmVzcG9uZGluZyBpb3JlcQ0K PiBzZXJ2ZXIsIGFuZCB0aGlzIHJlcXVpcmVzIHRoYXQgdGhlIHAybSB0eXBlIG5vdCBiZSBzd2l0 Y2hlZCBiYWNrDQo+IHRvIHAybV9yYW1fcncgZHVyaW5nIHRoZSBlbXVsYXRpb24gcHJvY2Vzcy4g VG8gYXZvaWQgdGhpcyByYWNlDQo+IGNvbmRpdGlvbiwgd2UgZGVsYXkgdGhlIHJlbGVhc2Ugb2Yg cDJtIGxvY2sgaW4NCj4gaHZtX2hhcF9uZXN0ZWRfcGFnZV9mYXVsdCgpDQo+IHVudGlsIG1taW8g aXMgaGFuZGxlZC4NCj4gDQo+IE5vdGU6IHByZXZpb3VzbHkgaW4gaHZtX2hhcF9uZXN0ZWRfcGFn ZV9mYXVsdCgpLCBwdXRfZ2ZuKCkgd2FzIG1vdmVkDQo+IGJlZm9yZSB0aGUgaGFuZGxpbmcgb2Yg bW1pbywgZHVlIHRvIGEgZGVhZGxvY2sgcmlzayBiZXR3ZWVuIHRoZSBwMm0NCj4gbG9jayBhbmQg dGhlIGV2ZW50IGxvY2soaW4gY29tbWl0IDc3YjhkZmUpLiBMYXRlciwgYSBwZXItZXZlbnQgY2hh bm5lbA0KPiBsb2NrIHdhcyBpbnRyb2R1Y2VkIGluIGNvbW1pdCBkZTZhY2I3LCB0byBzZW5kIGV2 ZW50cy4gU28gd2UgZG8gbm90DQo+IG5lZWQgdG8gd29ycnkgYWJvdXQgdGhlIGRlYWRsb2NrIGlz c3VlLg0KPiANCj4gU2lnbmVkLW9mZi1ieTogWXUgWmhhbmcgPHl1LmMuemhhbmdAbGludXguaW50 ZWwuY29tPg0KPiBSZXZpZXdlZC1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29tPg0K PiAtLS0NCj4gQ2M6IFBhdWwgRHVycmFudCA8cGF1bC5kdXJyYW50QGNpdHJpeC5jb20+DQo+IENj OiBKYW4gQmV1bGljaCA8amJldWxpY2hAc3VzZS5jb20+DQo+IENjOiBBbmRyZXcgQ29vcGVyIDxh bmRyZXcuY29vcGVyM0BjaXRyaXguY29tPg0KDQpZb3VyIGNjLXMgc2VlbSB0byBoYXZlIGJlZW4g ZHJvcHBlZCBieSB5b3VyIG1haWxlciAob3IgYXQgbGVhc3QgSSBjYW4ndCBzZWUgdGhlbSBpbiB0 aGUgbWFpbCBoZWFkZXIpLiBZb3UgbWF5IHdhbnQgdG8gc2VuZCB0aGVzZSBhZ2FpbiBzbyB0aGF0 IHJlbGV2YW50IGZvbGtzIGFjdHVhbGx5IGdldCBjYy1lZC4NCg0KICBQYXVsDQoNCj4gLS0tDQo+ ICB4ZW4vYXJjaC94ODYvaHZtL2h2bS5jIHwgOCArKy0tLS0tLQ0KPiAgMSBmaWxlIGNoYW5nZWQs IDIgaW5zZXJ0aW9ucygrKSwgNiBkZWxldGlvbnMoLSkNCj4gDQo+IGRpZmYgLS1naXQgYS94ZW4v YXJjaC94ODYvaHZtL2h2bS5jIGIveGVuL2FyY2gveDg2L2h2bS9odm0uYw0KPiBpbmRleCBjY2Zh ZTRmLi5hOWRiN2Y3IDEwMDY0NA0KPiAtLS0gYS94ZW4vYXJjaC94ODYvaHZtL2h2bS5jDQo+ICsr KyBiL3hlbi9hcmNoL3g4Ni9odm0vaHZtLmMNCj4gQEAgLTE4NzAsMTggKzE4NzAsMTQgQEAgaW50 IGh2bV9oYXBfbmVzdGVkX3BhZ2VfZmF1bHQocGFkZHJfdCBncGEsDQo+IHVuc2lnbmVkIGxvbmcg Z2xhLA0KPiAgICAgICAgICAgKG5wZmVjLndyaXRlX2FjY2VzcyAmJg0KPiAgICAgICAgICAgIChw Mm1faXNfZGlzY2FyZF93cml0ZShwMm10KSB8fCAocDJtdCA9PSBwMm1faW9yZXFfc2VydmVyKSkp ICkNCj4gICAgICB7DQo+IC0gICAgICAgIF9fcHV0X2dmbihwMm0sIGdmbik7DQo+IC0gICAgICAg IGlmICggYXAybV9hY3RpdmUgKQ0KPiAtICAgICAgICAgICAgX19wdXRfZ2ZuKGhvc3RwMm0sIGdm bik7DQo+IC0NCj4gICAgICAgICAgcmMgPSAwOw0KPiAgICAgICAgICBpZiAoIHVubGlrZWx5KGlz X3B2aF9kb21haW4oY3VycmQpKSApDQo+IC0gICAgICAgICAgICBnb3RvIG91dDsNCj4gKyAgICAg ICAgICAgIGdvdG8gb3V0X3B1dF9nZm47DQo+IA0KPiAgICAgICAgICBpZiAoICFoYW5kbGVfbW1p b193aXRoX3RyYW5zbGF0aW9uKGdsYSwgZ3BhID4+IFBBR0VfU0hJRlQsIG5wZmVjKSApDQo+ICAg ICAgICAgICAgICBodm1faW5qZWN0X2h3X2V4Y2VwdGlvbihUUkFQX2dwX2ZhdWx0LCAwKTsNCj4g ICAgICAgICAgcmMgPSAxOw0KPiAtICAgICAgICBnb3RvIG91dDsNCj4gKyAgICAgICAgZ290byBv dXRfcHV0X2dmbjsNCj4gICAgICB9DQo+IA0KPiAgICAgIC8qIENoZWNrIGlmIHRoZSBwYWdlIGhh cyBiZWVuIHBhZ2VkIG91dCAqLw0KPiAtLQ0KPiAxLjkuMQ0KPiANCj4gDQo+IF9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+IFhlbi1kZXZlbCBtYWlsaW5n IGxpc3QNCj4gWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcNCj4gaHR0cHM6Ly9saXN0cy54ZW4ub3Jn L3hlbi1kZXZlbA0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczov L2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==