From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: [PATCH v2 11/19] x86/emul: Avoid raising faults behind the emulators back Date: Mon, 28 Nov 2016 12:47:28 +0000 Message-ID: <6e16ee42a5224b35a5b0c36f999a1505@AMSPEX02CL03.citrite.net> References: <1480331616-6165-1-git-send-email-andrew.cooper3@citrix.com> <1480331616-6165-12-git-send-email-andrew.cooper3@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1480331616-6165-12-git-send-email-andrew.cooper3@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: Xen-devel Cc: Andrew Cooper , Jan Beulich List-Id: xen-devel@lists.xenproject.org PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQo+IEZyb206IEFuZHJldyBDb29wZXIgW21haWx0 bzphbmRyZXcuY29vcGVyM0BjaXRyaXguY29tXQo+IFNlbnQ6IDI4IE5vdmVtYmVyIDIwMTYgMTE6 MTMKPiBUbzogWGVuLWRldmVsIDx4ZW4tZGV2ZWxAbGlzdHMueGVuLm9yZz4KPiBDYzogQW5kcmV3 IENvb3BlciA8QW5kcmV3LkNvb3BlcjNAY2l0cml4LmNvbT47IEphbiBCZXVsaWNoCj4gPEpCZXVs aWNoQHN1c2UuY29tPjsgUGF1bCBEdXJyYW50IDxQYXVsLkR1cnJhbnRAY2l0cml4LmNvbT4KPiBT dWJqZWN0OiBbUEFUQ0ggdjIgMTEvMTldIHg4Ni9lbXVsOiBBdm9pZCByYWlzaW5nIGZhdWx0cyBi ZWhpbmQgdGhlCj4gZW11bGF0b3JzIGJhY2sKPiAKPiBJbnRyb2R1Y2UgYSBuZXcgeDg2X2VtdWxf cGFnZWZhdWx0KCkgc2ltaWxhciB0byB4ODZfZW11bF9od19leGNlcHRpb24oKSwKPiBhbmQKPiB1 c2UgdGhpcyBpbnN0ZWFkIG9mIGh2bV9pbmplY3RfcGFnZV9mYXVsdCgpIGZyb20gZW11bGF0aW9u IGNvZGVwYXRocy4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBBbmRyZXcgQ29vcGVyIDxhbmRyZXcuY29v cGVyM0BjaXRyaXguY29tPgo+IC0tLQo+IENDOiBKYW4gQmV1bGljaCA8SkJldWxpY2hAc3VzZS5j b20+Cj4gQ0M6IFBhdWwgRHVycmFudCA8cGF1bC5kdXJyYW50QGNpdHJpeC5jb20+CgpSZXZpZXdl ZC1ieTogUGF1bCBEdXJyYW50IDxwYXVsLmR1cnJhbnRAY2l0cml4LmNvbT4KCj4gCj4gdjI6Cj4g ICogQ2hhbmdlIHg4Nl9lbXVsX3BhZ2VmYXVsdCgpJ3MgZXJyb3JfY29kZSBwYXJhbWV0ZXIgdG8g YmVpbmcgc2lnbmVkCj4gICogU3BsaXQgb3V0IHNoYWRvdyBjaGFuZ2VzCj4gLS0tCj4gIHhlbi9h cmNoL3g4Ni9odm0vZW11bGF0ZS5jICAgICAgICAgICAgIHwgIDQgKystLQo+ICB4ZW4vYXJjaC94 ODYveDg2X2VtdWxhdGUveDg2X2VtdWxhdGUuaCB8IDEzICsrKysrKysrKysrKysKPiAgMiBmaWxl cyBjaGFuZ2VkLCAxNSBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1n aXQgYS94ZW4vYXJjaC94ODYvaHZtL2VtdWxhdGUuYyBiL3hlbi9hcmNoL3g4Ni9odm0vZW11bGF0 ZS5jCj4gaW5kZXggNzc0NWM1Yi4uMzVkMWQxYyAxMDA2NDQKPiAtLS0gYS94ZW4vYXJjaC94ODYv aHZtL2VtdWxhdGUuYwo+ICsrKyBiL3hlbi9hcmNoL3g4Ni9odm0vZW11bGF0ZS5jCj4gQEAgLTQ1 OSw3ICs0NTksNyBAQCBzdGF0aWMgaW50IGh2bWVtdWxfbGluZWFyX3RvX3BoeXMoCj4gICAgICB7 Cj4gICAgICAgICAgaWYgKCBwZmVjICYgKFBGRUNfcGFnZV9wYWdlZCB8IFBGRUNfcGFnZV9zaGFy ZWQpICkKPiAgICAgICAgICAgICAgcmV0dXJuIFg4NkVNVUxfUkVUUlk7Cj4gLSAgICAgICAgaHZt X2luamVjdF9wYWdlX2ZhdWx0KHBmZWMsIGFkZHIpOwo+ICsgICAgICAgIHg4Nl9lbXVsX3BhZ2Vm YXVsdChwZmVjLCBhZGRyLCAmaHZtZW11bF9jdHh0LT5jdHh0KTsKPiAgICAgICAgICByZXR1cm4g WDg2RU1VTF9FWENFUFRJT047Cj4gICAgICB9Cj4gCj4gQEAgLTQ4Myw3ICs0ODMsNyBAQCBzdGF0 aWMgaW50IGh2bWVtdWxfbGluZWFyX3RvX3BoeXMoCj4gICAgICAgICAgICAgICAgICBBU1NFUlQo IXJldmVyc2UpOwo+ICAgICAgICAgICAgICAgICAgaWYgKCBucGZuICE9IGdmbl94KElOVkFMSURf R0ZOKSApCj4gICAgICAgICAgICAgICAgICAgICAgcmV0dXJuIFg4NkVNVUxfVU5IQU5ETEVBQkxF Owo+IC0gICAgICAgICAgICAgICAgaHZtX2luamVjdF9wYWdlX2ZhdWx0KHBmZWMsIGFkZHIgJiBQ QUdFX01BU0spOwo+ICsgICAgICAgICAgICAgICAgeDg2X2VtdWxfcGFnZWZhdWx0KHBmZWMsIGFk ZHIgJiBQQUdFX01BU0ssICZodm1lbXVsX2N0eHQtCj4gPmN0eHQpOwo+ICAgICAgICAgICAgICAg ICAgcmV0dXJuIFg4NkVNVUxfRVhDRVBUSU9OOwo+ICAgICAgICAgICAgICB9Cj4gICAgICAgICAg ICAgICpyZXBzID0gZG9uZTsKPiBkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L3g4Nl9lbXVsYXRl L3g4Nl9lbXVsYXRlLmgKPiBiL3hlbi9hcmNoL3g4Ni94ODZfZW11bGF0ZS94ODZfZW11bGF0ZS5o Cj4gaW5kZXggODAxOWVlMS4uNDY3OTcxMSAxMDA2NDQKPiAtLS0gYS94ZW4vYXJjaC94ODYveDg2 X2VtdWxhdGUveDg2X2VtdWxhdGUuaAo+ICsrKyBiL3hlbi9hcmNoL3g4Ni94ODZfZW11bGF0ZS94 ODZfZW11bGF0ZS5oCj4gQEAgLTYyNCw2ICs2MjQsMTkgQEAgc3RhdGljIGlubGluZSB2b2lkIHg4 Nl9lbXVsX2h3X2V4Y2VwdGlvbigKPiAgICAgIGN0eHQtPmV2ZW50X3BlbmRpbmcgPSB0cnVlOwo+ ICB9Cj4gCj4gK3N0YXRpYyBpbmxpbmUgdm9pZCB4ODZfZW11bF9wYWdlZmF1bHQoCj4gKyAgICBp bnQgZXJyb3JfY29kZSwgdW5zaWduZWQgbG9uZyBjcjIsIHN0cnVjdCB4ODZfZW11bGF0ZV9jdHh0 ICpjdHh0KQo+ICt7Cj4gKyAgICBBU1NFUlQoIWN0eHQtPmV2ZW50X3BlbmRpbmcpOwo+ICsKPiAr ICAgIGN0eHQtPmV2ZW50LnZlY3RvciA9IDE0OyAvKiBUUkFQX3BhZ2VfZmF1bHQgKi8KPiArICAg IGN0eHQtPmV2ZW50LnR5cGUgPSBYODZfRVZFTlRUWVBFX0hXX0VYQ0VQVElPTjsKPiArICAgIGN0 eHQtPmV2ZW50LmVycm9yX2NvZGUgPSBlcnJvcl9jb2RlOwo+ICsgICAgY3R4dC0+ZXZlbnQuY3Iy ID0gY3IyOwo+ICsKPiArICAgIGN0eHQtPmV2ZW50X3BlbmRpbmcgPSB0cnVlOwo+ICt9Cj4gKwo+ ICBzdGF0aWMgaW5saW5lIHZvaWQgeDg2X2VtdWxfc29mdHdhcmVfZXZlbnQoCj4gICAgICBlbnVt IHg4Nl9zd2ludF90eXBlIHR5cGUsIHVpbnQ4X3QgdmVjdG9yLCB1aW50OF90IGluc25fbGVuLAo+ ICAgICAgc3RydWN0IHg4Nl9lbXVsYXRlX2N0eHQgKmN0eHQpCj4gLS0KPiAyLjEuNAoKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hl bi1kZXZlbAo=