From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: [PATCH] AMD IOMMU: fail if there is no southbridge IO-APIC Date: Fri, 07 Feb 2014 10:38:01 -0500 Message-ID: <52F4FDD9.5000608@oracle.com> References: <52F4B38C020000780011A15D@nat28.tlf.novell.com> <52F4F7D1.9020906@oracle.com> <52F5088F020000780011A484@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.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1WBnU5-0004ms-6m for xen-devel@lists.xenproject.org; Fri, 07 Feb 2014 15:36:53 +0000 In-Reply-To: <52F5088F020000780011A484@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 Cc: xen-devel , suravee.suthikulpanit@amd.com List-Id: xen-devel@lists.xenproject.org T24gMDIvMDcvMjAxNCAxMDoyMyBBTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4gT24gMDcuMDIu MTQgYXQgMTY6MTIsIEJvcmlzIE9zdHJvdnNreSA8Ym9yaXMub3N0cm92c2t5QG9yYWNsZS5jb20+ IHdyb3RlOgo+PiBPbiAwMi8wNy8yMDE0IDA0OjIxIEFNLCBKYW4gQmV1bGljaCB3cm90ZToKPj4+ IC4uLiBidXQgaW50ZXJydXB0IHJlbWFwcGluZyBpcyByZXF1ZXN0ZWQgKHdpdGggcGVyLWRldmlj ZSByZW1hcHBpbmcKPj4+IHRhYmxlcykuIFdpdGhvdXQgaXQsIHRoZSB0aW1lciBpbnRlcnJ1cHQg aXMgdXN1YWxseSBub3Qgd29ya2luZy4KPj4+Cj4+PiBJbnNwaXJlZCBieSBMaW51eCdlcyAiaW9t bXUvYW1kOiBXb3JrIGFyb3VuZCB3cm9uZyBJT0FQSUMgZGV2aWNlLWlkIGluCj4+PiBJVlJTIHRh YmxlIiAoY29tbWl0IGMyZmY1Y2Y1Mjk0YmNiZDdmYTUwZjdkODYwZTkwYTY2ZGI3ZTUwNTkpIGJ5 IEpvZXJnCj4+PiBSb2VkZWwgPGpvZXJnLnJvZWRlbEBhbWQuY29tPi4KPj4+Cj4+PiBSZXBvcnRl ZC1ieTogRXJpYyBIb3VieSA8ZWhvdWJ5QHlhaG9vLmNvbT4KPj4+IFNpZ25lZC1vZmYtYnk6IEph biBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPj4+IFRlc3RlZC1ieTogRXJpYyBIb3VieSA8 ZWhvdWJ5QHlhaG9vLmNvbT4KPj4+Cj4+PiAtLS0gYS94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9h bWQvaW9tbXVfYWNwaS5jCj4+PiArKysgYi94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC9hbWQvaW9t bXVfYWNwaS5jCj4+PiBAQCAtOTg0LDYgKzk4NCw3IEBAIHN0YXRpYyBpbnQgX19pbml0IHBhcnNl X2l2cnNfdGFibGUoc3RydWMKPj4+ICAgICAgICBjb25zdCBzdHJ1Y3QgYWNwaV9pdnJzX2hlYWRl ciAqaXZyc19ibG9jazsKPj4+ICAgICAgICB1bnNpZ25lZCBsb25nIGxlbmd0aDsKPj4+ICAgICAg ICB1bnNpZ25lZCBpbnQgYXBpYzsKPj4+ICsgICAgYm9vbF90IHNiX2lvYXBpYyA9ICFpb21tdV9p bnRyZW1hcDsKPj4+ICAgICAgICBpbnQgZXJyb3IgPSAwOwo+Pj4gICAgCj4+PiAgICAgICAgQlVH X09OKCF0YWJsZSk7Cj4+PiBAQCAtMTAxNyw4ICsxMDE4LDE1IEBAIHN0YXRpYyBpbnQgX19pbml0 IHBhcnNlX2l2cnNfdGFibGUoc3RydWMKPj4+ICAgICAgICAvKiBFYWNoIElPLUFQSUMgbXVzdCBo YXZlIGJlZW4gbWVudGlvbmVkIGluIHRoZSB0YWJsZS4gKi8KPj4+ICAgICAgICBmb3IgKCBhcGlj ID0gMDsgIWVycm9yICYmIGlvbW11X2ludHJlbWFwICYmIGFwaWMgPCBucl9pb2FwaWNzOyArK2Fw aWMgKQo+Pj4gICAgICAgIHsKPj4+IC0gICAgICAgIGlmICggIW5yX2lvYXBpY19lbnRyaWVzW2Fw aWNdIHx8Cj4+PiAtICAgICAgICAgICAgIGlvYXBpY19zYmRmW0lPX0FQSUNfSUQoYXBpYyldLnBp bl8yX2lkeCApCj4+PiArICAgICAgICBpZiAoICFucl9pb2FwaWNfZW50cmllc1thcGljXSApCj4+ PiArICAgICAgICAgICAgY29udGludWU7Cj4+PiArCj4+PiArICAgICAgICBpZiAoICFpb2FwaWNf c2JkZltJT19BUElDX0lEKGFwaWMpXS5zZWcgJiYKPj4+ICsgICAgICAgICAgICAgLyogU0IgSU8t QVBJQyBpcyBhbHdheXMgb24gdGhpcyBkZXZpY2UgaW4gQU1EIHN5c3RlbXMuICovCj4+PiArICAg ICAgICAgICAgIGlvYXBpY19zYmRmW0lPX0FQSUNfSUQoYXBpYyldLmJkZiA9PSBQQ0lfQkRGKDAs IDB4MTQsIDApICkKPj4+ICsgICAgICAgICAgICBzYl9pb2FwaWMgPSAxOwo+Pj4gKwo+Pj4gKyAg ICAgICAgaWYgKCBpb2FwaWNfc2JkZltJT19BUElDX0lEKGFwaWMpXS5waW5fMl9pZHggKQo+Pj4g ICAgICAgICAgICAgICAgY29udGludWU7Cj4+PiAgICAKPj4+ICAgICAgICAgICAgaWYgKCAhdGVz dF9iaXQoSU9fQVBJQ19JRChhcGljKSwgaW9hcGljX2NtZGxpbmUpICkKPj4gSSBkb24ndCBrbm93 IHdoZXRoZXIgMDoxNDowIGlzIHNldCBpbiBzdG9uZSwgSSBkb24ndCByZW1lbWJlciBzZWVpbmcK Pj4gYW55d2hlcmUgdGhhdCB0aGlzIGlzIGFyY2hpdGVjdHVyYWwuCj4+Cj4+IEluIHRoZSAodW5s aWtlbHkpIGV2ZW50IHRoYXQgaXQgaXMgbW92ZWQgc29tZXdoZXJlIGVsc2Ugd2lsbCB0aGUgdXNl ciBiZQo+PiBhYmxlIHRvIG92ZXJ3cml0ZSB3aGVyZSBpdCBpcz8gRG8geW91Cj4+IHRoaW5rIHRo YXQgc2JfaW9hcGljIG1heSBuZWVkIHRvIGJlIHNldCB0byB0cnVlIGlmIGFwcHJvcHJpYXRlIGJp dCBpcwo+PiBzZXQgaW4gaW9hcGljX2NtZGxpbmU/Cj4gVGhlc2UgYXJlIHF1ZXN0aW9uIHlvdSdk IG5lZWQgdG8gYXNrIHRvIErDtnJnLCB0aGUgYXV0aG9yIG9mIHRoZQo+IG9yaWdpbmFsIExpbnV4 IHNpZGUgcGF0Y2guIEkgdG9vayBhcyBhIHByZWNvbmRpdGlvbiBoZXJlIHRoYXQgaGUKPiBrbmV3 IHdoYXQgaGUgd2FzIGRvaW5nLgoKWGVuIGFscmVhZHkgaGFzIGEgd2F5IHRvIG92ZXJyaWRlIElW UlMnIHZpZXcgb2YgSU9BUElDcyB3aXRoIAppb2FwaWNfY21kbGluZSwgc29tZXRoaW5nIHRoYXQg TGludXggZG9lc24ndC4gUHJlc3VtYWJseSBpZiB0aGUgdXNlciAKc2V0cyBpdnJzX2lvYXBpY1td IG9wdGlvbiBvbiBib290IGxpbmUgdGhlbiBoZSBrbm93cyB3aGF0IGhlIGlzIGRvaW5nIAooYXQg bGVhc3Qgb25lIHdvdWxkIGhvcGUgc28pLgoKTXkgY29uY2VybiBpcyB0aGF0IHRoaXMgcGF0Y2gg d291bGQgcHJldmVudCB0aGUgdXNlciBmcm9tIHNwZWNpZnlpbmcgCndoZXJlIHRoZSBJT0FQSUMg aXMuIFdpbGwgdGhpcyBib290IG9wdGlvbiBiZSB1c2VmdWwgYXQgYWxsIG5vdz8gV2hlbiB3ZSAK c3BlY2lmeSBhbnl0aGluZyBidXQgMDoxNDowIGl0IHdpbGwgYmUgcHJldHR5IG11Y2ggaWdub3Jl ZCwgd29uJ3QgaXQ/CgotYm9yaXMKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5v cmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==