From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suravee Suthikulpanit Subject: Re: [PATCH] AMD IOMMU: fail if there is no southbridge IO-APIC Date: Fri, 7 Feb 2014 11:14:34 -0600 Message-ID: <52F5147A.2060504@amd.com> References: <52F4B38C020000780011A15D@nat28.tlf.novell.com> <52F4F7D1.9020906@oracle.com> <52F5088F020000780011A484@nat28.tlf.novell.com> <52F4FDD9.5000608@oracle.com> <52F50EB9020000780011A4D8@nat28.tlf.novell.com> <52F503B8.2040304@oracle.com> <52F51404020000780011A517@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta4.messagelabs.com ([85.158.143.247]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1WBp0k-0003v2-I3 for xen-devel@lists.xenproject.org; Fri, 07 Feb 2014 17:14:42 +0000 In-Reply-To: <52F51404020000780011A517@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich , Boris Ostrovsky Cc: xen-devel List-Id: xen-devel@lists.xenproject.org T24gMi83LzIwMTQgMTA6MTIgQU0sIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDA3LjAyLjE0 IGF0IDE3OjAzLCBCb3JpcyBPc3Ryb3Zza3kgPGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPiB3 cm90ZToKPj4gT24gMDIvMDcvMjAxNCAxMDo1MCBBTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+ PiBPbiAwNy4wMi4xNCBhdCAxNjozOCwgQm9yaXMgT3N0cm92c2t5IDxib3Jpcy5vc3Ryb3Zza3lA b3JhY2xlLmNvbT4gd3JvdGU6Cj4+Pj4gT24gMDIvMDcvMjAxNCAxMDoyMyBBTSwgSmFuIEJldWxp Y2ggd3JvdGU6Cj4+Pj4+Pj4+IE9uIDA3LjAyLjE0IGF0IDE2OjEyLCBCb3JpcyBPc3Ryb3Zza3kg PGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPiB3cm90ZToKPj4+Pj4+IE9uIDAyLzA3LzIwMTQg MDQ6MjEgQU0sIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+Pj4+IC4uLiBidXQgaW50ZXJydXB0IHJl bWFwcGluZyBpcyByZXF1ZXN0ZWQgKHdpdGggcGVyLWRldmljZSByZW1hcHBpbmcKPj4+Pj4+PiB0 YWJsZXMpLiBXaXRob3V0IGl0LCB0aGUgdGltZXIgaW50ZXJydXB0IGlzIHVzdWFsbHkgbm90IHdv cmtpbmcuCj4+Pj4+Pj4KPj4+Pj4+PiBJbnNwaXJlZCBieSBMaW51eCdlcyAiaW9tbXUvYW1kOiBX b3JrIGFyb3VuZCB3cm9uZyBJT0FQSUMgZGV2aWNlLWlkIGluCj4+Pj4+Pj4gSVZSUyB0YWJsZSIg KGNvbW1pdCBjMmZmNWNmNTI5NGJjYmQ3ZmE1MGY3ZDg2MGU5MGE2NmRiN2U1MDU5KSBieSBKb2Vy Zwo+Pj4+Pj4+IFJvZWRlbCA8am9lcmcucm9lZGVsQGFtZC5jb20+Lgo+Pj4+Pj4+Cj4+Pj4+Pj4g UmVwb3J0ZWQtYnk6IEVyaWMgSG91YnkgPGVob3VieUB5YWhvby5jb20+Cj4+Pj4+Pj4gU2lnbmVk LW9mZi1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29tPgo+Pj4+Pj4+IFRlc3RlZC1i eTogRXJpYyBIb3VieSA8ZWhvdWJ5QHlhaG9vLmNvbT4KPj4+Pj4+Pgo+Pj4+Pj4+IC0tLSBhL3hl bi9kcml2ZXJzL3Bhc3N0aHJvdWdoL2FtZC9pb21tdV9hY3BpLmMKPj4+Pj4+PiArKysgYi94ZW4v ZHJpdmVycy9wYXNzdGhyb3VnaC9hbWQvaW9tbXVfYWNwaS5jCj4+Pj4+Pj4gQEAgLTk4NCw2ICs5 ODQsNyBAQCBzdGF0aWMgaW50IF9faW5pdCBwYXJzZV9pdnJzX3RhYmxlKHN0cnVjCj4+Pj4+Pj4g ICAgICAgICAgY29uc3Qgc3RydWN0IGFjcGlfaXZyc19oZWFkZXIgKml2cnNfYmxvY2s7Cj4+Pj4+ Pj4gICAgICAgICAgdW5zaWduZWQgbG9uZyBsZW5ndGg7Cj4+Pj4+Pj4gICAgICAgICAgdW5zaWdu ZWQgaW50IGFwaWM7Cj4+Pj4+Pj4gKyAgICBib29sX3Qgc2JfaW9hcGljID0gIWlvbW11X2ludHJl bWFwOwo+Pj4+Pj4+ICAgICAgICAgIGludCBlcnJvciA9IDA7Cj4+Pj4+Pj4KPj4+Pj4+PiAgICAg ICAgICBCVUdfT04oIXRhYmxlKTsKPj4+Pj4+PiBAQCAtMTAxNyw4ICsxMDE4LDE1IEBAIHN0YXRp YyBpbnQgX19pbml0IHBhcnNlX2l2cnNfdGFibGUoc3RydWMKPj4+Pj4+PiAgICAgICAgICAvKiBF YWNoIElPLUFQSUMgbXVzdCBoYXZlIGJlZW4gbWVudGlvbmVkIGluIHRoZSB0YWJsZS4gKi8KPj4+ Pj4+PiAgICAgICAgICBmb3IgKCBhcGljID0gMDsgIWVycm9yICYmIGlvbW11X2ludHJlbWFwICYm IGFwaWMgPCBucl9pb2FwaWNzOyArK2FwaWMgKQo+Pj4+Pj4+ICAgICAgICAgIHsKPj4+Pj4+PiAt ICAgICAgICBpZiAoICFucl9pb2FwaWNfZW50cmllc1thcGljXSB8fAo+Pj4+Pj4+IC0gICAgICAg ICAgICAgaW9hcGljX3NiZGZbSU9fQVBJQ19JRChhcGljKV0ucGluXzJfaWR4ICkKPj4+Pj4+PiAr ICAgICAgICBpZiAoICFucl9pb2FwaWNfZW50cmllc1thcGljXSApCj4+Pj4+Pj4gKyAgICAgICAg ICAgIGNvbnRpbnVlOwo+Pj4+Pj4+ICsKPj4+Pj4+PiArICAgICAgICBpZiAoICFpb2FwaWNfc2Jk ZltJT19BUElDX0lEKGFwaWMpXS5zZWcgJiYKPj4+Pj4+PiArICAgICAgICAgICAgIC8qIFNCIElP LUFQSUMgaXMgYWx3YXlzIG9uIHRoaXMgZGV2aWNlIGluIEFNRCBzeXN0ZW1zLiAqLwo+Pj4+Pj4+ ICsgICAgICAgICAgICAgaW9hcGljX3NiZGZbSU9fQVBJQ19JRChhcGljKV0uYmRmID09IFBDSV9C REYoMCwgMHgxNCwgMCkgKQo+Pj4+Pj4+ICsgICAgICAgICAgICBzYl9pb2FwaWMgPSAxOwo+Pj4+ Pj4+ICsKPj4+Pj4+PiArICAgICAgICBpZiAoIGlvYXBpY19zYmRmW0lPX0FQSUNfSUQoYXBpYyld LnBpbl8yX2lkeCApCj4+Pj4+Pj4gICAgICAgICAgICAgICAgICBjb250aW51ZTsKPj4+Pj4+Pgo+ Pj4+Pj4+ICAgICAgICAgICAgICBpZiAoICF0ZXN0X2JpdChJT19BUElDX0lEKGFwaWMpLCBpb2Fw aWNfY21kbGluZSkgKQo+Pj4+Pj4gSSBkb24ndCBrbm93IHdoZXRoZXIgMDoxNDowIGlzIHNldCBp biBzdG9uZSwgSSBkb24ndCByZW1lbWJlciBzZWVpbmcKPj4+Pj4+IGFueXdoZXJlIHRoYXQgdGhp cyBpcyBhcmNoaXRlY3R1cmFsLgo+Pj4+Pj4KW1N1cmF2ZWVdIEZyb20gd2hhdCBJIGhhdmUgc2Vl biBvbiBhbGwgb2Ygb3VyIHN5c3RlbSBhbmQgY2hlY2tpbmcgd2l0aCAKZGVzaWduIGVuZ2luZWVy LiAgSU9BUElDIGluIHRoZSBTQiBvbiBBTUQgc3lzdGVtIGFsd2F5cyBoYXZlICIwOjE0LjAiIAph bmQgc2hvdWxkIGFsd2F5cyBiZSBlbmFibGVkLgoKPj4+Pj4+IEluIHRoZSAodW5saWtlbHkpIGV2 ZW50IHRoYXQgaXQgaXMgbW92ZWQgc29tZXdoZXJlIGVsc2Ugd2lsbCB0aGUgdXNlciBiZQo+Pj4+ Pj4gYWJsZSB0byBvdmVyd3JpdGUgd2hlcmUgaXQgaXM/IERvIHlvdQo+Pj4+Pj4gdGhpbmsgdGhh dCBzYl9pb2FwaWMgbWF5IG5lZWQgdG8gYmUgc2V0IHRvIHRydWUgaWYgYXBwcm9wcmlhdGUgYml0 IGlzCj4+Pj4+PiBzZXQgaW4gaW9hcGljX2NtZGxpbmU/Cj4+Pj4+IFRoZXNlIGFyZSBxdWVzdGlv biB5b3UnZCBuZWVkIHRvIGFzayB0byBKw7ZyZywgdGhlIGF1dGhvciBvZiB0aGUKPj4+Pj4gb3Jp Z2luYWwgTGludXggc2lkZSBwYXRjaC4gSSB0b29rIGFzIGEgcHJlY29uZGl0aW9uIGhlcmUgdGhh dCBoZQo+Pj4+PiBrbmV3IHdoYXQgaGUgd2FzIGRvaW5nLgo+Pj4+IFhlbiBhbHJlYWR5IGhhcyBh IHdheSB0byBvdmVycmlkZSBJVlJTJyB2aWV3IG9mIElPQVBJQ3Mgd2l0aAo+Pj4+IGlvYXBpY19j bWRsaW5lLCBzb21ldGhpbmcgdGhhdCBMaW51eCBkb2Vzbid0LiBQcmVzdW1hYmx5IGlmIHRoZSB1 c2VyCj4+Pj4gc2V0cyBpdnJzX2lvYXBpY1tdIG9wdGlvbiBvbiBib290IGxpbmUgdGhlbiBoZSBr bm93cyB3aGF0IGhlIGlzIGRvaW5nCj4+Pj4gKGF0IGxlYXN0IG9uZSB3b3VsZCBob3BlIHNvKS4K Pj4+IEkgdGhpbmsgdGhlIGxvZ2ljIHdlIGhhdmUgaXMgc3VmZmljaWVudGx5IHNpbWlsYXIgdG8g TGludXgnZXMuCj4+Pgo+Pj4+IE15IGNvbmNlcm4gaXMgdGhhdCB0aGlzIHBhdGNoIHdvdWxkIHBy ZXZlbnQgdGhlIHVzZXIgZnJvbSBzcGVjaWZ5aW5nCj4+Pj4gd2hlcmUgdGhlIElPQVBJQyBpcy4g V2lsbCB0aGlzIGJvb3Qgb3B0aW9uIGJlIHVzZWZ1bCBhdCBhbGwgbm93PyBXaGVuIHdlCj4+Pj4g c3BlY2lmeSBhbnl0aGluZyBidXQgMDoxNDowIGl0IHdpbGwgYmUgcHJldHR5IG11Y2ggaWdub3Jl ZCwgd29uJ3QgaXQ/Cj4+PiBCdXQgdGhlIHB1cnBvc2UgaGVyZSBpc24ndCB0byBvdmVycmlkZSBo b3cgdGhlIGhhcmR3YXJlIGlzCj4+PiBzdHJ1Y3R1cmVkLCBidXQgdG8gb3ZlcmNvbWUgZmlybXdh cmUgdmVuZG9ycyBub3QgZ2V0dGluZyB0aGVpcgo+Pj4gQUNQSSB0YWJsZXMgY29ycmVjdC4KCltT dXJhdmVlXSBUaGUgaXZyc19pb2FwaWNbXSB3b3VsZCB3b3JrIGZvciB0aGUgY2FzZSB3aGVyZSB1 c2VycyB3YW50IHRvIApmaXggdGhlIElWSEQgd2hlbiBpdCBpbmNvcnJlY3RseSBsaXN0cyB0aGUg aGFuZGxlIElEIGZvciBJT0FQSUMsIG9yIAptaXNzaW5nIGl0LiBCdXQgdGhlIElPQVBJQyBuZWVk cyB0byBhbHNvIGJlIGNyb3NzIGNoZWNrZWQgd2l0aCB0aGUgCklPQVBJQyBlbnRyeSBsaXN0ZWQg aW4gdGhlIEFQSUMgdGFibGUuCgpJbiB0aGlzIGNhc2UsIHRoZSBJT0FQSUMgaXMgYWxzbyBtaXNz aW5nIGluIHRoZSBBUElDIHRhYmxlLCBhbmQgSSBkb24ndCAKdGhpbmsgaXZyc19pb2FwaWNbXSB3 b3VsZCBiZSBoYW5kbGluZyB0aGlzIGNhc2UgYW55d2F5cy4KClN1cmF2ZWUKCgoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcg bGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2 ZWwK