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x-conformance=sidf_compatible IronPort-SDR: 0C5YZnxd0rs2c14yTizC4S1NpCOCgODfbvLy3IwxIwTrCnt+LYqGJbDwzdux/7Pya0snzFNYCH SQddpv6y2QLnS68M15WKm1d2nE9tBomwK4+bvvx+ybtiuQv9RvmJY3Iv63YPD2+UlzPTXYCCQO LbRkxtAut1XKWQhatMtK5i5uUKN/JBAM4rWvrlJ2mf1aH4tk8Ofp6Uuv2UL6TQlm5gb9SFYevX SX1sPs7iMqjX8zGsQgsZwhlbQ351FP29xAC/kzyGvpbVv6ebKwq/MF5/LhitW1V5E0RKkJbIig Bic= X-SBRS: 2.7 X-MesageID: 3281356 X-Ironport-Server: esa3.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.64,295,1559534400"; d="scan'208";a="3281356" From: Paul Durrant To: Roger Pau Monne Thread-Topic: [Xen-devel] [BUG] After upgrade to Xen 4.12.0 iommu=no-igfx Thread-Index: AQHVPmzkQranvSB3QkuFJWZsoolqxKbWTmUwgAAaH4CAACIW8P///zuAgAAjM0A= Date: Mon, 22 Jul 2019 14:03:44 +0000 Message-ID: <81a7cdc728294e5ca05fd056a87cb21b@AMSPEX02CL03.citrite.net> References: <20190722114859.dtm4w5ff75uedu24@Air-de-Roger> <9238bf1a297c42f38dccc1cfb50bd144@AMSPEX02CL03.citrite.net> <20190722134813.c7fedaqtrbo6ojvo@Air-de-Roger> In-Reply-To: <20190722134813.c7fedaqtrbo6ojvo@Air-de-Roger> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted MIME-Version: 1.0 Subject: Re: [Xen-devel] [BUG] After upgrade to Xen 4.12.0 iommu=no-igfx 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: "jgross@suse.com" , Andrew Cooper , 'Roman Shaposhnik' , "jbeulich@suse.com" , "xen-devel@lists.xenproject.org" , "boris.ostrovsky@oracle.com" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQpbc25pcF0KPiA+ID4gZGlmZiAtLWdpdCBhL3hl bi9kcml2ZXJzL3Bhc3N0aHJvdWdoL2lvbW11LmMgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9p b21tdS5jCj4gPiA+IGluZGV4IDc5ZWM2NzE5ZjUuLjlkOTFmMGQ2MzMgMTAwNjQ0Cj4gPiA+IC0t LSBhL3hlbi9kcml2ZXJzL3Bhc3N0aHJvdWdoL2lvbW11LmMKPiA+ID4gKysrIGIveGVuL2RyaXZl cnMvcGFzc3Rocm91Z2gvaW9tbXUuYwo+ID4gPiBAQCAtMTg1LDcgKzE4NSw3IEBAIHZvaWQgX19o d2RvbV9pbml0IGlvbW11X2h3ZG9tX2luaXQoc3RydWN0IGRvbWFpbiAqZCkKPiA+ID4gICAgICBy ZWdpc3Rlcl9rZXloYW5kbGVyKCdvJywgJmlvbW11X2R1bXBfcDJtX3RhYmxlLCAiZHVtcCBpb21t dSBwMm0gdGFibGUiLCAwKTsKPiA+ID4KPiA+ID4gICAgICBoZC0+c3RhdHVzID0gSU9NTVVfU1RB VFVTX2luaXRpYWxpemluZzsKPiA+ID4gLSAgICBoZC0+bmVlZF9zeW5jID0gaW9tbXVfaHdkb21f c3RyaWN0ICYmICFpb21tdV91c2VfaGFwX3B0KGQpOwo+ID4gPiArICAgIGhkLT5uZWVkX3N5bmMg PSAhaW9tbXVfdXNlX2hhcF9wdChkKTsKPiA+Cj4gPiBCdXQgdGhpcyBpcyBnb2luZyB0byBtZWFu IHRoZSBpZigpIGJlbG93IGlzIHRydWUgZm9yIG5vbi1zdHJpY3QgZG9tMCwgd2hpY2ggbWVhbnMg aXQgcG9pbnRsZXNzbHkKPiBtYXBzIHRoZSBkb20wIHBhZ2UgbGlzdCB3aGVuIGh3ZG9tX2lvbW11 X21hcCgpIHNob3VsZCBoYXZlIGFscmVhZHkgbWFwcGVkIGFsbCBjb252ZW50aW9uYWwgUkFNLgo+ IAo+IFJpZ2h0LCB0aGlzIGFsbCBzZWVtcyBxdWl0ZSBicm9rZW4uIE5vbi10cmFuc2xhdGVkIGd1 ZXN0cyAoaWU6IFBWKQo+IHdvdWxkIGFsd2F5cyBuZWVkIGlvbW11IHBhZ2UtdGFibGUgc3luYywg YnV0IHNldF9pZGVudGl0eV9wMm1fZW50cnkKPiBjb250YWlucyB0aGUgZm9sbG93aW5nOgo+IAo+ IGlmICggIXBhZ2luZ19tb2RlX3RyYW5zbGF0ZShwMm0tPmRvbWFpbikgKQo+IHsKPiAgICAgaWYg KCAhbmVlZF9pb21tdV9wdF9zeW5jKGQpICkKPiAgICAgICAgIHJldHVybiAwOwo+ICAgICByZXR1 cm4gaW9tbXVfbGVnYWN5X21hcChkLCBfZGZuKGdmbl9sKSwgX21mbihnZm5fbCksIFBBR0VfT1JE RVJfNEssCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgIElPTU1VRl9yZWFkYWJsZSB8IElP TU1VRl93cml0YWJsZSk7Cj4gfQo+IAo+IEkgd29uZGVyIHdoZXRoZXIgdGhlIHVzYWdlIG9mIG5l ZWRfaW9tbXVfcHRfc3luYyBpcyB3cm9uZyB0aGVyZSwgYW5kCj4gc2hvdWxkIGluc3RlYWQgYmUg IWhhc19pb21tdV9wdChkKSwgc2luY2Ugbm9uLXRyYW5zbGF0ZWQgZG9tYWlucyB3b3VsZAo+IG5l dmVyIHNoYXJlIHRoZSBpb21tdSBwYWdlLXRhYmxlcyBhbnl3YXkuCgpZb3Ugd2FudCBzeW5jaW5n IGlmIHRoZSBkb21haW4gaGFzIElPTU1VIHBhZ2UgdGFibGVzIGFuZCBzaGFyZWQgRVBUIGlzIG5v dCBpbiB1c2UsIHNvIHRoaXMgbG9naWMganVzdCBzZWVtcyB3cm9uZy4KCj4gCj4gSW4gYW55IGNh c2UsIEkgdGhpbmsgbmVlZF9zeW5jIG11c3QgYmUgc2V0IHdoZW4gdGhlIGlvbW11IHBhZ2UgdGFi bGVzCj4gYXJlIG5vdCBzaGFyZWQsIGFuZCBnYXRpbmcgaXQgb24gaW9tbXVfaHdkb21fc3RyaWN0 IHNlZW1zIHdyb25nIHRvIG1lLAo+IHRoZSBzdHJpY3RuZXNzIG9mIHRoZSBpb21tdSBkb2Vzbid0 IGFmZmVjdCB3aGV0aGVyIGEgc3luYyBpcyBuZWVkIG9yCj4gbm90LgoKSSB0aGluayBuZWVkX3N5 bmMgaXMgZ2F0ZWQgb24gc3RyaWN0IG1vZGUgYmVjYXVzZSwgaW4gJ3JlbGF4ZWQnIG1vZGUsIHRo ZSBtYXBwaW5ncyB0aGF0IGFyZSBzZXQgdXAgd2hlbiBkb20wIGlzIHN0YXJ0ZWQgYXJlIHN1cHBv c2VkIHRvIGJlIHN0YXRpYyAobW9kdWxvIGhvdHBsdWcgUkFNKS4uLiBzbyBtb2RpZmljYXRpb25z IHRvIHRoZSBkb21haW4ncyBwYWdlIGxpc3QgYXJlIG5vdCBzdXBwb3NlZCB0byBoYXZlIGFueSBl ZmZlY3QsIGFuZCBzbyBubyBzeW5jaHJvbml6YXRpb24gbmVlZCBiZSBkb25lLgoKPiAKPiBJJ3Zl IHVwZGF0ZWQgdGhlIHBhdGNoIHRvIGF2b2lkIHRoZSBwb2ludGxlc3MgbWFwcGluZyBvZiBkb20w IHBhZ2UKPiBsaXN0LCBidXQgSSBoYXZlbid0IGluY2x1ZGVkIHRoZSBjaGFuZ2UgdG8gc2V0X2lk ZW50aXR5X3AybV9lbnRyeS4KPiAKClNvLCBJIHRoaW5rIHRoZSBhbGJlaXQgb2RkIGxvb2tpbmcg bG9naWMgaW4gaW9tbXVfaHdkb21faW5pdCgpIHdhcyBhY3R1YWxseSBjb3JyZWN0LCBidXQgdGhl IGNvZGUgaW4gc2V0X2lkZW50aXR5X3AybV9lbnRyeSgpIGlzIHdyb25nLgoKICBQYXVsCgo+IFRo YW5rcywgUm9nZXIuCj4gLS0tODwtLS0KPiBkaWZmIC0tZ2l0IGEveGVuL2RyaXZlcnMvcGFzc3Ro cm91Z2gvaW9tbXUuYyBiL3hlbi9kcml2ZXJzL3Bhc3N0aHJvdWdoL2lvbW11LmMKPiBpbmRleCA3 OWVjNjcxOWY1Li5hYmY5ZTM4NjA3IDEwMDY0NAo+IC0tLSBhL3hlbi9kcml2ZXJzL3Bhc3N0aHJv dWdoL2lvbW11LmMKPiArKysgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9pb21tdS5jCj4gQEAg LTE4NSw4ICsxODUsOCBAQCB2b2lkIF9faHdkb21faW5pdCBpb21tdV9od2RvbV9pbml0KHN0cnVj dCBkb21haW4gKmQpCj4gICAgICByZWdpc3Rlcl9rZXloYW5kbGVyKCdvJywgJmlvbW11X2R1bXBf cDJtX3RhYmxlLCAiZHVtcCBpb21tdSBwMm0gdGFibGUiLCAwKTsKPiAKPiAgICAgIGhkLT5zdGF0 dXMgPSBJT01NVV9TVEFUVVNfaW5pdGlhbGl6aW5nOwo+IC0gICAgaGQtPm5lZWRfc3luYyA9IGlv bW11X2h3ZG9tX3N0cmljdCAmJiAhaW9tbXVfdXNlX2hhcF9wdChkKTsKPiAtICAgIGlmICggbmVl ZF9pb21tdV9wdF9zeW5jKGQpICkKPiArICAgIGhkLT5uZWVkX3N5bmMgPSAhaW9tbXVfdXNlX2hh cF9wdChkKTsKPiArICAgIGlmICggaW9tbXVfaHdkb21fc3RyaWN0ICYmIG5lZWRfaW9tbXVfcHRf c3luYyhkKSApCj4gICAgICB7Cj4gICAgICAgICAgc3RydWN0IHBhZ2VfaW5mbyAqcGFnZTsKPiAg ICAgICAgICB1bnNpZ25lZCBpbnQgaSA9IDAsIGZsdXNoX2ZsYWdzID0gMDsKCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBs aXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2pl Y3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs