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Tue, 06 Aug 2019 14:49:02 -0700 (PDT) MIME-Version: 1.0 References: <20190730092122.dbpfzu7jsznpyksd@Air-de-Roger> <20190731083631.63vqxrdr5vyeeswn@Air-de-Roger> <20190731084336.lkpk4n35qg2zo67w@Air-de-Roger> <20190801081559.wruxck32h5bum2va@Air-de-Roger> <20190802080540.r4e3rrv3eit5yebt@Air-de-Roger> <20190806160644.adqzknxdfuwz4qaz@Air-de-Roger> In-Reply-To: <20190806160644.adqzknxdfuwz4qaz@Air-de-Roger> From: Roman Shaposhnik Date: Tue, 6 Aug 2019 14:48:51 -0700 Message-ID: To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= 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 , Paul Durrant , "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" T24gVHVlLCBBdWcgNiwgMjAxOSBhdCA5OjE4IEFNIFJvZ2VyIFBhdSBNb25uw6kgPHJvZ2VyLnBh dUBjaXRyaXguY29tPiB3cm90ZToKPgo+IE9uIEZyaSwgQXVnIDAyLCAyMDE5IGF0IDEwOjA1OjQw QU0gKzAyMDAsIFJvZ2VyIFBhdSBNb25uw6kgd3JvdGU6Cj4gPiBPbiBUaHUsIEF1ZyAwMSwgMjAx OSBhdCAxMToyNTowNEFNIC0wNzAwLCBSb21hbiBTaGFwb3NobmlrIHdyb3RlOgo+ID4gPiBUaGlz IHBhdGNoIGNvbXBsZXRlbHkgZml4ZXMgdGhlIHByb2JsZW0gZm9yIG1lIQo+ID4gPgo+ID4gPiBU aGFua3MgUm9nZXIhIEknZCBsb3ZlIHRvIHNlZSB0aGlzIGluIFhlbiA0LjEzCj4gPgo+ID4gVGhh bmtzIGZvciB0ZXN0aW5nIQo+ID4KPiA+IEl0J3Mgc3RpbGwgbm90IGNsZWFyIHRvIG1lIHdoeSB0 aGUgcHJldmlvdXMgYXBwcm9hY2ggZGlkbid0IHdvcmssIGJ1dAo+ID4gSSB0aGluayB0aGlzIHBh dGNoIGlzIGJldHRlciBiZWNhdXNlIGl0IHJlbW92ZXMgdGhlIHVzYWdlIG9mCj4gPiB7c2V0L2Ns ZWFyfV9pZGVudGl0eV9wMm1fZW50cnkgZnJvbSBQViBkb21haW5zLiBJIHdpbGwgc3VibWl0IHRo aXMKPiA+IGZvcm1hbGx5IG5vdy4KPgo+IFNvcnJ5IHRvIGJvdGhlciBhZ2FpbiwgYnV0IHNpbmNl IHdlIHN0aWxsIGRvbid0IHVuZGVyc3RhbmQgd2h5IHRoZQo+IHByZXZpb3VzIGZpeCBkaWRuJ3Qg d29yayBmb3IgeW91LCBhbmQgSSBjYW4ndCByZXByb2R1Y2UgdGhpcyB3aXRoIG15Cj4gaGFyZHdh cmUsIGNvdWxkIHlvdSBnaXZlIHRoZSBhdHRhY2hlZCBwYXRjaCBhIHRyeT8KCk5vIHdvcnJpZXMg LS0gYW5kIHRoYW5rcyBmb3IgaGVscGluZyB0byBnZXQgaXQgb3ZlciB0aGUgZmluaXNoIGxpbmUg LS0KdGhpcyBpcyBtdWNoIGFwcHJlY2lhdGVkIQoKSSdtIGhhcHB5IHRvIHNheSB0aGF0IHRoaXMg bGF0ZXN0IHBhdGNoIGlzIGFsc28gd29ya2luZyBqdXN0IGZpbmUuIFNvCkkgZ3Vlc3MgdGhpcyBp cyB0aGUgb25lIHRoYXQncyBnb2luZyB0byBsYW5kIGluIFhlbiA0LjEzPwoKVGhhbmtzLApSb21h bi4KCj4gQUZBSUNUIHRoZSBvbmx5IGRpZmZlcmVuY2UgYmV0d2VlbiB0aGUgbm9uLXdvcmtpbmcg dmVyc2lvbiBhbmQgdGhlCj4gd29ya2luZyB2ZXJzaW9uIGlzIHRoZSBmbHVzaCwgc28gSSd2ZSBh ZGRlZCBpdCBoZXJlLgo+Cj4gVGhhbmtzLCBSb2dlci4KPiAtLS04PC0tLQo+IGRpZmYgLS1naXQg YS94ZW4vYXJjaC94ODYvbW0vcDJtLmMgYi94ZW4vYXJjaC94ODYvbW0vcDJtLmMKPiBpbmRleCBm ZWY5N2M4MmY2Li4zNjA1NjE0YWFmIDEwMDY0NAo+IC0tLSBhL3hlbi9hcmNoL3g4Ni9tbS9wMm0u Ywo+ICsrKyBiL3hlbi9hcmNoL3g4Ni9tbS9wMm0uYwo+IEBAIC0xMzQxLDcgKzEzNDEsNyBAQCBp bnQgc2V0X2lkZW50aXR5X3AybV9lbnRyeShzdHJ1Y3QgZG9tYWluICpkLCB1bnNpZ25lZCBsb25n IGdmbl9sLAo+Cj4gICAgICBpZiAoICFwYWdpbmdfbW9kZV90cmFuc2xhdGUocDJtLT5kb21haW4p ICkKPiAgICAgIHsKPiAtICAgICAgICBpZiAoICFuZWVkX2lvbW11X3B0X3N5bmMoZCkgKQo+ICsg ICAgICAgIGlmICggIWhhc19pb21tdV9wdChkKSApCj4gICAgICAgICAgICAgIHJldHVybiAwOwo+ ICAgICAgICAgIHJldHVybiBpb21tdV9sZWdhY3lfbWFwKGQsIF9kZm4oZ2ZuX2wpLCBfbWZuKGdm bl9sKSwgUEFHRV9PUkRFUl80SywKPiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBJ T01NVUZfcmVhZGFibGUgfCBJT01NVUZfd3JpdGFibGUpOwo+IEBAIC0xNDMyLDcgKzE0MzIsNyBA QCBpbnQgY2xlYXJfaWRlbnRpdHlfcDJtX2VudHJ5KHN0cnVjdCBkb21haW4gKmQsIHVuc2lnbmVk IGxvbmcgZ2ZuX2wpCj4KPiAgICAgIGlmICggIXBhZ2luZ19tb2RlX3RyYW5zbGF0ZShkKSApCj4g ICAgICB7Cj4gLSAgICAgICAgaWYgKCAhbmVlZF9pb21tdV9wdF9zeW5jKGQpICkKPiArICAgICAg ICBpZiAoICFoYXNfaW9tbXVfcHQoZCkgKQo+ICAgICAgICAgICAgICByZXR1cm4gMDsKPiAgICAg ICAgICByZXR1cm4gaW9tbXVfbGVnYWN5X3VubWFwKGQsIF9kZm4oZ2ZuX2wpLCBQQUdFX09SREVS XzRLKTsKPiAgICAgIH0KPiBkaWZmIC0tZ2l0IGEveGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvdnRk L2lvbW11LmMgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUuYwo+IGluZGV4IDVk NzIyNzBjNWIuLjlmZDVjOTdiZTIgMTAwNjQ0Cj4gLS0tIGEveGVuL2RyaXZlcnMvcGFzc3Rocm91 Z2gvdnRkL2lvbW11LmMKPiArKysgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUu Ywo+IEBAIC0yMDI2LDcgKzIwMjYsNyBAQCBzdGF0aWMgaW50IHJtcnJfaWRlbnRpdHlfbWFwcGlu ZyhzdHJ1Y3QgZG9tYWluICpkLCBib29sX3QgbWFwLAo+ICAgICAgbXJtcnItPmNvdW50ID0gMTsK PiAgICAgIGxpc3RfYWRkX3RhaWwoJm1ybXJyLT5saXN0LCAmaGQtPmFyY2gubWFwcGVkX3JtcnJz KTsKPgo+IC0gICAgcmV0dXJuIDA7Cj4gKyAgICByZXR1cm4gaW9tbXVfaW90bGJfZmx1c2hfYWxs KGQsIElPTU1VX0ZMVVNIRl9hZGRlZCB8IElPTU1VX0ZMVVNIRl9tb2RpZmllZCk7Cj4gIH0KPgo+ ICBzdGF0aWMgaW50IGludGVsX2lvbW11X2FkZF9kZXZpY2UodTggZGV2Zm4sIHN0cnVjdCBwY2lf ZGV2ICpwZGV2KQo+CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9y ZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs