From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ting-Wei Lan Subject: Re: [PATCH] VT-d: add iommu=igfx_off option to workaround graphics issues Date: Fri, 24 Jul 2015 00:41:51 +0800 Message-ID: <55B1194F.6010800@gmail.com> References: <1437159952-4134-1-git-send-email-lantw44@gmail.com> <55ACAF80.4000608@citrix.com> <55AE0959020000780009379E@prv-mh.provo.novell.com> <55AE0DF602000078000937DF@prv-mh.provo.novell.com> <55AE11E4020000780009380B@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <55AE11E4020000780009380B@prv-mh.provo.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 , Kevin Tian Cc: Yang Z Zhang , Andrew Cooper , lantw44@gmail.com, "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org SmFuIEJldWxpY2gg5pa8IOilv+WFgzIwMTXlubQwN+aciDIx5pelIDE1OjMzIOWvq+mBkzoKPj4+ PiBPbiAyMS4wNy4xNSBhdCAwOToyMywgPGtldmluLnRpYW5AaW50ZWwuY29tPiB3cm90ZToKPj4+ ICAgRnJvbTogSmFuIEJldWxpY2ggW21haWx0bzpKQmV1bGljaEBzdXNlLmNvbV0KPj4+IFNlbnQ6 IFR1ZXNkYXksIEp1bHkgMjEsIDIwMTUgMzoxNyBQTQo+Pgo+Pj4+Pj4gT24gMjEuMDcuMTUgYXQg MDk6MDUsIDxrZXZpbi50aWFuQGludGVsLmNvbT4gd3JvdGU6Cj4+Pj4+ICAgRnJvbTogSmFuIEJl dWxpY2ggW21haWx0bzpKQmV1bGljaEBzdXNlLmNvbV0KPj4+Pj4gU2VudDogVHVlc2RheSwgSnVs eSAyMSwgMjAxNSAyOjU3IFBNCj4+Pj4+Pj4+IE9uIDIxLjA3LjE1IGF0IDAyOjU3LCA8a2V2aW4u dGlhbkBpbnRlbC5jb20+IHdyb3RlOgo+Pj4+Pj4+ICAgRnJvbTogQW5kcmV3IENvb3BlciBbbWFp bHRvOmFtYzk2QGhlcm1lcy5jYW0uYWMudWtdIE9uIEJlaGFsZiBPZiBBbmRyZXcKPj4+Pj4+IENv b3Blcgo+Pj4+Pj4+IFNlbnQ6IE1vbmRheSwgSnVseSAyMCwgMjAxNSA0OjIxIFBNCj4+Pj4+PiBU aGlzIGlzIHRoZSBwYXJ0IHdoaWNoIEkgZG9uJ3QgcXVpdGUgdW5kZXJzdGFuZC4gV0MgaXMgZXNz ZW50aWFsbHkgYW4gVUMKPj4+Pj4+IGF0dHJpYnV0ZSB3aXRoIHdyaXRlIGJ1ZmZlciB0byBhY2Nl bGVyYXRlIHRoZSB3cml0ZSBlZmZpY2llbmN5LiBUaGVyZQo+Pj4+Pj4gc2hvdWxkIGJlIG5vIGNv cnJlY3RuZXNzIHByb2JsZW0gdG8gdXNlIGVpdGhlciBXQyBvciBVQyBpZiBpOTE1IGRyaXZlcgo+ Pj4+Pj4gd2FudHMgV0MuCj4+Pj4+Cj4+Pj4+ICJTaG91bGQiIGlzIHRvbyB3ZWFrIGEgdGVybSBo ZXJlOiBVc2luZyBXQyBvbiB0aGUgd3JvbmcgcGllY2Ugb2YKPj4+Pj4gbWVtb3J5IG9yIHdpdGhv dXQgdGhlIG5lY2Vzc2FyeSBmZW5jaW5nIGNhbiBpbW8gdmVyeSB3ZWxsIGNhdXNlCj4+Pj4+IGNv cnJlY3RuZXNzIHByb2JsZW1zICh3aGljaCB3b3VsZCBiZSBoaWRkZW4gYnkgV0MgLT4gVUMKPj4+ Pj4gY29udmVyc2lvbiBiZWhpbmQgdGhlIGRyaXZlcidzIGJhY2spLgo+Pj4+Pgo+Pj4+Cj4+Pj4g TXkgcG9pbnQgaXMgYWJvdXQgd2hlbiBpOTE1IHdhbnRzIFdDLCB0aGVuIGVpdGhlciBVQyAoSSBz dXBwb3NlIGlzCj4+Pj4gdGhlIGNhc2UgYmVmb3JlIHRoYXQgTGludXggY29tbWl0KSBhbmQgV0Mg KGJ5IHRoYXQgY29tbWl0KSBoYXMKPj4+PiBubyBjb3JyZWN0bmVzcyBwcm9ibGVtLiBVQyBpcyBt b3JlIHN0cmljdCB0aGFuIFdDLiBJdCdzIGp1c3QgcGVyZm9ybWFuY2UKPj4+PiBkaWZmZXJlbmNl LiBJdCdzIG5vdCBhYm91dCB1c2luZyBXQyBpbiB3cm9uZyBwbGFjZSB3aGVuIGl0J3Mgbm90IGRl c2lyZWQuCj4+Pgo+Pj4gSW4gdGhpcyB5b3UgYXNzdW1lIHRoZXJlIGFyZSBubyBtaXNndWlkZWQg YXR0ZW1wdHMgdG8gcmVxdWVzdAo+Pj4gV0MgaW4gdGhlIGRyaXZlciwgd2hpY2ggd291bGQgaGF2 ZSBnb25lIHVubm90aWNlZCBhcyBsb25nIGFzIFdDCj4+PiBkaWRuJ3QgYmVjb21lIHRoZSBlZmZl Y3RpdmUgYXR0cmlidXRlLiBBbmQgIm1pc2d1aWRlZCIgaGVyZSBpcwo+Pj4gbWVhbnQgdG8gaW5j bHVkZSBjYXNlcyB3aGVyZSBoYXJkd2FyZSBlcnJhdGEgbWF5IG5lZWQgdGFraW5nCj4+PiBjYXJl IG9mLgo+Pgo+PiBJIGRvbid0IHVuZGVyc3RhbmQgdGhpcyBwb2ludC4gSWYgaXQncyBtaXNndWlk ZWQgYXR0ZW1wdHMgaXQnZCBiZQo+PiBzYW1lIG9uIGJhcmUgbWV0YWwuCj4KPiBOb3QgaWYgYmFy ZSBtZXRhbCBoYXMgYSB3b3JrYXJvdW5kIGluIHBsYWNlIGRlcGVuZGluZyBvbiAob3IgZXZlbgo+ IGltcGxlbWVudGVkIGluKSBJT01NVSBjb2RlLiBBbHNvIGlpcmMgdGhlIHJlcG9ydGVkIHNhaWQg dGhhdCBhCj4gc2ltaWxhciBwcm9ibGVtIGV4aXN0ZWQgKGV4aXN0cz8pIG9uIG5hdGl2ZSB0b28u CgpPbiAzLjcgPD0gTGludXggPCA0LjItcmMyIHdpdGhvdXQgWGVuLCB0aGUgc2NyZWVuIG91dHB1 dCBpcyBicm9rZW4sIGFuZCAKdGhlIHN5c3RlbSBjcmFzaGVzIGFmdGVyIGRpc3BsYXkgc2VydmVy IGlzIHN0YXJ0ZWQuCgpPbiBMaW51eCA+PSA0LjItcmMyIHdpdGhvdXQgWGVuLCB0aGUgc2NyZWVu IG91dHB1dCBpcyBub3JtYWwgYmVjYXVzZSAKdGhpcyBwYXRjaCBpcyBhZGRlZApodHRwczovL2dp dC5rZXJuZWwub3JnL2NnaXQvbGludXgva2VybmVsL2dpdC90b3J2YWxkcy9saW51eC5naXQvY29t bWl0Lz9pZD04YjU3MmE0CmJ1dCB0aGVzZSBtZXNzYWdlcyBhcmUgc2hvd2VkIGV2ZXJ5IGEgZmV3 IHNlY29uZHMuIElmIEkga2VlcCB1c2luZyBpdCwgCml0IHdpbGwgY3Jhc2ggaW4gYWJvdXQgdHdv IGhvdXJzLgpETUFSOiBETUFSOltETUEgV3JpdGVdIFJlcXVlc3QgZGV2aWNlIFswMDowMi4wXSBm YXVsdCBhZGRyIGZkZjcwMDAwCkRNQVI6W2ZhdWx0IHJlYXNvbiAwNV0gUFRFIFdyaXRlIGFjY2Vz cyBpcyBub3Qgc2V0CgpPbiBMaW51eCA+PSAzLjE5IHdpdGggWGVuLCB0aGUgc2NyZWVuIG91dHB1 dCBpcyBicm9rZW4sIGFuZCB0aGVzZSAKc2ltaWxhciBtZXNzYWdlcyBhcmUgc2hvd2VkLgooWEVO KSBbVlQtRF1ETUFSOltETUEgV3JpdGVdIFJlcXVlc3QgZGV2aWNlIFswMDAwOjAwOjAyLjBdIGZh dWx0IGFkZHIgCjczZmJmZjAwMCwgaW9tbXUgcmVnID0gZmZmZjgyYzAwMDIwMzAwMAooWEVOKSBb VlQtRF1ETUFSOiByZWFzb24gMDUgLSBQVEUgV3JpdGUgYWNjZXNzIGlzIG5vdCBzZXQKCj4KPiBK YW4KPgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhl bi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3Rz Lnhlbi5vcmcveGVuLWRldmVsCg==