From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gordan Bobic Subject: Re: GPU passthrough issue when VM is configured with 4G memory Date: Wed, 22 May 2013 19:41:50 +0100 Message-ID: <519D116E.3040402@bobich.net> References: <20130509164944.GR11427@reaktio.net> <519A091C.10507@eu.citrix.com> <519A6EBD.9040104@bobich.net> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Andrew Bobulsky Cc: Stefano Stabellini , George Dunlap , xudong.hao@intel.com, Yanqiangjun , Luonengjun , Wangzhenguo , Yangxiaowei , "Gonglei (Arei)" , Anthony Perard , xen-devel@lists.xen.org, Hanweidong , xiantao.zhang@intel.com List-Id: xen-devel@lists.xenproject.org T24gMDUvMjIvMjAxMyAwNzoxMSBQTSwgQW5kcmV3IEJvYnVsc2t5IHdyb3RlOgo+IE9uIFdlZCwg TWF5IDIyLCAyMDEzIGF0IDExOjE3IEFNLCBHb3JkYW4gQm9iaWMgPGdvcmRhbkBib2JpY2gubmV0 Cj4gPG1haWx0bzpnb3JkYW5AYm9iaWNoLm5ldD4+IHdyb3RlOgo+Cj4gICAgIE9uIFR1ZSwgMjEg TWF5IDIwMTMgMDQ6MDk6MjUgKzAwMDAsIEhhbndlaWRvbmcKPiAgICAgPGhhbndlaWRvbmdAaHVh d2VpLmNvbSA8bWFpbHRvOmhhbndlaWRvbmdAaHVhd2VpLmNvbT4+IHdyb3RlOgo+Cj4gICAgICAg ICAgICAgLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPiAgICAgICAgICAgICBGcm9tOiBHb3Jk YW4gQm9iaWMgW21haWx0bzpnb3JkYW5AYm9iaWNoLm5ldAo+ICAgICAgICAgICAgIDxtYWlsdG86 Z29yZGFuQGJvYmljaC5uZXQ+XQo+ICAgICAgICAgICAgIFNlbnQ6IDIwMTPlubQ15pyIMjHml6Ug Mjo0Mwo+ICAgICAgICAgICAgIFRvOiBHZW9yZ2UgRHVubGFwCj4gICAgICAgICAgICAgQ2M6IEhh bndlaWRvbmc7IFN0ZWZhbm8gU3RhYmVsbGluaTsgeHVkb25nLmhhb0BpbnRlbC5jb20KPiAgICAg ICAgICAgICA8bWFpbHRvOnh1ZG9uZy5oYW9AaW50ZWwuY29tPjsgWWFucWlhbmdqdW47Cj4gICAg ICAgICAgICAgTHVvbmVuZ2p1bjsgV2FuZ3poZW5ndW87IFlhbmd4aWFvd2VpOyBHb25nbGVpIChB cmVpKTsKPiAgICAgICAgICAgICBBbnRob255IFBlcmFyZDsKPiAgICAgICAgICAgICB4ZW4tZGV2 ZWxAbGlzdHMueGVuLm9yZyA8bWFpbHRvOnhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnPjsKPiAgICAg ICAgICAgICB4aWFudGFvLnpoYW5nQGludGVsLmNvbSA8bWFpbHRvOnhpYW50YW8uemhhbmdAaW50 ZWwuY29tPgo+ICAgICAgICAgICAgIFN1YmplY3Q6IFJlOiBbWGVuLWRldmVsXSBHUFUgcGFzc3Ro cm91Z2ggaXNzdWUgd2hlbiBWTSBpcwo+ICAgICAgICAgICAgIGNvbmZpZ3VyZWQKPiAgICAgICAg ICAgICB3aXRoIDRHIG1lbW9yeQo+Cj4gICAgICAgICAgICAgSSdkIGFsc28gbGlrZSB0byBzdHJl c3MgdGhpcyBpcyBub3Qgb25seSBhbiBpc3N1ZSBmb3IgPiA0R0IKPiAgICAgICAgICAgICBvZiBS QU0gaW4KPiAgICAgICAgICAgICBkb21VIC0gSSBhbSBzZWVpbmcgdGhlIGlzc3VlIHdpdGggPiAy R0Igb2YgUkFNIGluIGRvbVUuCj4KPgo+ICAgICAgICAgV2hhdCdzIHRoZSB0b3RhbCBtbWlvIHNp emUgb2YgeW91IGRvbVU/Cj4KPgo+ICAgICBIb3cgY2FuIEkgZmluZCB0aGF0IG91dD8KPgo+Cj4g ICAgICAgICBXaGVuIFJBTSBvZiBkb21VIG92ZXJsYXBzCj4gICAgICAgICB3aXRoIHBjaV9tZW1f c3RhcnQsIGh2bWxvYWRlciB3aWxsIHJlbG9jYXRlIFJBTSwgYW5kIGl0IHdpbGwgY2F1c2UKPiAg ICAgICAgIHByb2JsZW0gZHVlIHRvIGh2bWxvYWRlciBhbmQgUUVNVSBkb24ndCBzZXR1cCB0aGUg bWVtb3J5IGxheW91dAo+ICAgICAgICAgY29uc2lzdGVudGx5LiBJIHN1c3BlY3QgdGhlIG1taW8g c2l6ZSBvZiB5b3VyIGRvbVUgaXMgY2xvc2UgdG8gMkdCLgo+ICAgICAgICAgV2hlbiB5b3UgY29u ZmlndXJlZCBSQU0gPiAyRywgdGhlbiBSQU0gb2YgeW91ciBkb21VIG92ZXJsYXBwZWQgd2l0aAo+ ICAgICAgICAgcGNpX21lbV9zdGFydCwgYW5kIHJlc3VsdGVkIGluIGZhaWx1cmUuCj4KPgo+ICAg ICBJcyB0aGVyZSBhIHdheSB0byBmb3JjZSBhIGhvbGUgYmV0d2Vlbiwgc2F5LCAyR0IgYW5kIDRH QiBleHBsaWNpdGx5Cj4gICAgIHRvIGF2b2lkIHRoZSBQQ0kgbWVtb3J5IGJlaW5nIGNsb2JiZXJl ZD8KPgo+IEknbGwgc2Vjb25kIHRoYXQgcXVlc3Rpb24hCj4gR29yZGFuLCBvbmUgdGhpbmcgSSBk aWRuJ3QgdGhpbmsgb2YgdW50aWwgbm93OiB0aGUgY2FyZCBJIHdhcyBoYXZpbmcKPiB0cm91Ymxl IHdpdGgsIGEgUmFkZW9uIDY5OTAsIGlzIGEgNEdCIGNhcmQsIGxhaWQgb3V0IGFzIHR3byAyR0Ig R1BVcy4KPiBUaGUgY2FyZCB3aXRoIHdoaWNoIEkgZG9uJ3QgaGF2ZSBpc3N1ZXMgKGFzaWRlIGZy b20gdGhlIG9jY2FzaW9uYWwgbmVlZAo+IHRvIHJlYm9vdCB0aGUgd2hvbGUgc3lzdGVtIHRvIGdl dCBpdCB0byB3b3JrIHJpZ2h0KSwgYSBSYWRlb24gNTg1MCwgaXMgYQo+IDFHQiBjYXJkLiAgSWYg YXMgdGhpcyB0aHJlYWQgaGFzIHN1Z2dlc3RlZCwgYWxvbmcgd2l0aCB3aGF0IEkndmUgcmVhZAo+ IGFib3V0IHRoZSBQQ0kgSG9sZSwgdGhlIG1lbW9yeSBvbiB0aGUgR1BVIGRldGVybWluZXMgdGhl ICJjbG9iYmVyIHNpemUiCj4gKHllcyBJIG1hZGUgdGhhdCB0ZXJtIHVwIDpQKSwKCkknbSBwcmV0 dHkgc3VyZSB0aGUgR1BVIFJBTSBzaXplIGlzIG5vdCByZWxldmFudC4gSSd2ZSBzZWVuIHRoaXMg d2l0aCAKdGhlIDFHQiBOdmlkaWEgUXVhZHJvIDIwMDAsIDFHQiBBVEkgNzQ1MCBhbmQgdGhlIDZH QiA3OTcwLiBUaGUgR1BVIAptZW1vcnkgc2l6ZSBkb2VzIG5vdCBhZmZlY3QgdGhlIGFwZXJ0dXJl IHNpemUgb3IgbG9jYXRpb24uIEkgZm9yIG9uZSAKd291bGQgbG92ZSBpdCBpZiBhbGwgb2YgdGhl IEdQVSBSQU0gd2FzIGluIGZhY3QgbWFwcGVkIGFzIGEgQkFSIC0gdGhhdCAKd291bGQgb3BlbiB1 cCBzb21lIHZlcnkgZnVua3kgYXBwcm9hY2hlcyB0byBwcm9jZXNzaW5nIGxhcmdlIGFtb3VudHMg b2YgCmRhdGEsIGUuZy4gYnkganVzdCBtYXBwaW5nIHRoZSBkYXRhIHN0cmFpZ2h0IHRvIHRoZSBH UFUuIEl0IHdvdWxkIGFsc28gCm1ha2UgaXQgdHJpdmlhbGx5IGVhc3kgdG8gdXNlIGFsbCB0aGF0 IFJBTSBhcyBhIFJBTSBkaXNrIHdoZW4gdGhlIEdQVSAKaXNuJ3QgYmVpbmcgdXNlZCAoZS5nLiB5 b3UgY2FuIHVzZSB0aGUgUkFNIGZvciBmYXN0IHN3YXAgZm9yIG5vcm1hbCAKZGVza3RvcCB0YXNr cywgYW5kIGZyZWUgaXQgdXAgd2hlbiBnYW1pbmcpLiBidXQgdGhhdCdzIGEgd2hvbGUgZGlmZmVy ZW50IAp0b3BpYy4KCkdvcmRhbgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9y ZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK