From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: [PATCH] x86/xen: support priv-mapping in an HVM tools domain Date: Thu, 19 Oct 2017 15:25:14 +0000 Message-ID: <3b4517fdcca741028af6ab2fcfd0c634@AMSPEX02CL03.citrite.net> References: <20171019152420.38389-1-paul.durrant@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5ChF-0005et-M6 for xen-devel@lists.xenproject.org; Thu, 19 Oct 2017 15:25:21 +0000 In-Reply-To: <20171019152420.38389-1-paul.durrant@citrix.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: Paul Durrant , "x86@kernel.org" , "xen-devel@lists.xenproject.org" , "linux-kernel@vger.kernel.org" List-Id: xen-devel@lists.xenproject.org QXBvbG9naWVzLi4uIEkgbWlzZm9ybWF0dGVkIHRoaXMuIEkgd2lsbCByZS1zZW5kLgoKICBQYXVs Cj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPiBGcm9tOiBQYXVsIER1cnJhbnQgW21haWx0 bzpwYXVsLmR1cnJhbnRAY2l0cml4LmNvbV0KPiBTZW50OiAxOSBPY3RvYmVyIDIwMTcgMTY6MjQK PiBUbzogeDg2QGtlcm5lbC5vcmc7IHhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZzsgbGlu dXgtCj4ga2VybmVsQHZnZXIua2VybmVsLm9yZwo+IENjOiBQYXVsIER1cnJhbnQgPFBhdWwuRHVy cmFudEBjaXRyaXguY29tPgo+IFN1YmplY3Q6IFtQQVRDSF0geDg2L3hlbjogc3VwcG9ydCBwcml2 LW1hcHBpbmcgaW4gYW4gSFZNIHRvb2xzIGRvbWFpbgo+IAo+IElmIHRoZSBkb21haW4gaGFzIFhF TkZFQVRfYXV0b190cmFuc2xhdGVkX3BoeXNtYXAgdGhlbiB1c2Ugb2YgdGhlIFBWLQo+IHNwZWNp ZmljIEhZUEVSVklTT1JfbW11X3VwZGF0ZSBoeXBlcmNhbGwgaXMgY2xlYXJseSBpbmNvcnJlY3Qu Cj4gCj4gVGhpcyBwYXRjaCBhZGRzIGNoZWNrcyBpbiB4ZW5fcmVtYXBfZG9tYWluX2dmbl9hcnJh eSgpIGFuZAo+IHhlbl91bm1hcF9kb21haW5fZ2ZuX2FycmF5KCkgd2hpY2ggY2FsbCB0aHJvdWdo IHRvIHRoZSBhcHByb3ByYXRlCj4geGxhdGVfbW11IGZ1bmN0aW9uIGlmIHRoZSBmZWF0dXJlIGlz IHByZXNlbnQuIEEgY2hlY2sgaXMgYWxzbyBhZGRlZAo+IHRvIHhlbl9yZW1hcF9kb21haW5fZ2Zu X3JhbmdlKCkgdG8gZmFpbCB3aXRoIC1FT1BOT1RTVVBQIHNpbmNlIHRoaXMKPiBzaG91bGQgbm90 IGJlIHVzZWQgaW4gYW4gSFZNIHRvb2xzIGRvbWFpbi4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBQYXVs IER1cnJhbnQgPHBhdWwuZHVycmFudEBjaXRyaXguY29tPgo+IC0tLQo+IEJvcmlzIE9zdHJvdnNr eSA8Ym9yaXMub3N0cm92c2t5QG9yYWNsZS5jb20+Cj4gSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1 c2UuY29tPgo+IFRob21hcyBHbGVpeG5lciA8dGdseEBsaW51dHJvbml4LmRlPgo+IEluZ28gTW9s bmFyIDxtaW5nb0ByZWRoYXQuY29tPgo+ICJILiBQZXRlciBBbnZpbiIgPGhwYUB6eXRvci5jb20+ Cj4gLS0tCj4gIGFyY2gveDg2L3hlbi9tbXUuYyB8IDE0ICsrKysrKysrKysrKy0tCj4gIDEgZmls ZSBjaGFuZ2VkLCAxMiBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1n aXQgYS9hcmNoL3g4Ni94ZW4vbW11LmMgYi9hcmNoL3g4Ni94ZW4vbW11LmMKPiBpbmRleCAzZTE1 MzQ1YWJmZTcuLmQzM2U3ZGJlMzEyOSAxMDA2NDQKPiAtLS0gYS9hcmNoL3g4Ni94ZW4vbW11LmMK PiArKysgYi9hcmNoL3g4Ni94ZW4vbW11LmMKPiBAQCAtMTcyLDYgKzE3Miw5IEBAIGludCB4ZW5f cmVtYXBfZG9tYWluX2dmbl9yYW5nZShzdHJ1Y3QKPiB2bV9hcmVhX3N0cnVjdCAqdm1hLAo+ICAJ CQkgICAgICAgcGdwcm90X3QgcHJvdCwgdW5zaWduZWQgZG9taWQsCj4gIAkJCSAgICAgICBzdHJ1 Y3QgcGFnZSAqKnBhZ2VzKQo+ICB7Cj4gKwlpZiAoeGVuX2ZlYXR1cmUoWEVORkVBVF9hdXRvX3Ry YW5zbGF0ZWRfcGh5c21hcCkpCj4gKwkJcmV0dXJuIC1FT1BOT1RTVVBQOwo+ICsKPiAgCXJldHVy biBkb19yZW1hcF9nZm4odm1hLCBhZGRyLCAmZ2ZuLCBuciwgTlVMTCwgcHJvdCwgZG9taWQsCj4g cGFnZXMpOwo+ICB9Cj4gIEVYUE9SVF9TWU1CT0xfR1BMKHhlbl9yZW1hcF9kb21haW5fZ2ZuX3Jh bmdlKTsKPiBAQCAtMTgyLDYgKzE4NSwxMCBAQCBpbnQgeGVuX3JlbWFwX2RvbWFpbl9nZm5fYXJy YXkoc3RydWN0Cj4gdm1fYXJlYV9zdHJ1Y3QgKnZtYSwKPiAgCQkJICAgICAgIGludCAqZXJyX3B0 ciwgcGdwcm90X3QgcHJvdCwKPiAgCQkJICAgICAgIHVuc2lnbmVkIGRvbWlkLCBzdHJ1Y3QgcGFn ZSAqKnBhZ2VzKQo+ICB7Cj4gKwlpZiAoeGVuX2ZlYXR1cmUoWEVORkVBVF9hdXRvX3RyYW5zbGF0 ZWRfcGh5c21hcCkpCj4gKwkJcmV0dXJuIHhlbl94bGF0ZV9yZW1hcF9nZm5fYXJyYXkodm1hLCBh ZGRyLCBnZm4sIG5yLAo+IGVycl9wdHIsCj4gKwkJCQkJCSBwcm90LCBkb21pZCwgcGFnZXMpOwo+ ICsKPiAgCS8qIFdlIEJVR19PTiBiZWNhdXNlIGl0J3MgYSBwcm9ncmFtbWVyIGVycm9yIHRvIHBh c3MgYSBOVUxMCj4gZXJyX3B0ciwKPiAgCSAqIGFuZCB0aGUgY29uc2VxdWVuY2VzIGxhdGVyIGlz IHF1aXRlIGhhcmQgdG8gZGV0ZWN0IHdoYXQgdGhlIGFjdHVhbAo+ICAJICogY2F1c2Ugb2YgIndy b25nIG1lbW9yeSB3YXMgbWFwcGVkIGluIi4KPiBAQCAtMTkzLDkgKzIwMCwxMiBAQAo+IEVYUE9S VF9TWU1CT0xfR1BMKHhlbl9yZW1hcF9kb21haW5fZ2ZuX2FycmF5KTsKPiAKPiAgLyogUmV0dXJu czogMCBzdWNjZXNzICovCj4gIGludCB4ZW5fdW5tYXBfZG9tYWluX2dmbl9yYW5nZShzdHJ1Y3Qg dm1fYXJlYV9zdHJ1Y3QgKnZtYSwKPiAtCQkJICAgICAgIGludCBudW1wZ3MsIHN0cnVjdCBwYWdl ICoqcGFnZXMpCj4gKwkJCSAgICAgICBpbnQgbnIsIHN0cnVjdCBwYWdlICoqcGFnZXMpCj4gIHsK PiAtCWlmICghcGFnZXMgfHwgIXhlbl9mZWF0dXJlKFhFTkZFQVRfYXV0b190cmFuc2xhdGVkX3Bo eXNtYXApKQo+ICsJaWYgKHhlbl9mZWF0dXJlKFhFTkZFQVRfYXV0b190cmFuc2xhdGVkX3BoeXNt YXApKQo+ICsJCXJldHVybiB4ZW5feGxhdGVfdW5tYXBfZ2ZuX3JhbmdlKHZtYSwgbnIsIHBhZ2Vz KTsKPiArCj4gKwlpZiAoIXBhZ2VzKQo+ICAJCXJldHVybiAwOwo+IAo+ICAJcmV0dXJuIC1FSU5W QUw7Cj4gLS0KPiAyLjExLjAKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3Jn Cmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK