From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v4 2/6] VMX: Properly handle pi when all the assigned devices are removed Date: Wed, 28 Sep 2016 03:52:09 -0600 Message-ID: <57EBAEE90200007800113370@prv-mh.provo.novell.com> References: <1474425470-3629-1-git-send-email-feng.wu@intel.com> <1474425470-3629-3-git-send-email-feng.wu@intel.com> <57E926B90200007800112666@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Feng Wu Cc: "george.dunlap@eu.citrix.com" , "andrew.cooper3@citrix.com" , "dario.faggioli@citrix.com" , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDI4LjA5LjE2IGF0IDA4OjUwLCA8ZmVuZy53dUBpbnRlbC5jb20+IHdyb3RlOgoKPiAK Pj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPj4gRnJvbTogSmFuIEJldWxpY2ggW21haWx0 bzpKQmV1bGljaEBzdXNlLmNvbV0KPj4gU2VudDogTW9uZGF5LCBTZXB0ZW1iZXIgMjYsIDIwMTYg Nzo0NyBQTQo+PiBUbzogV3UsIEZlbmcgPGZlbmcud3VAaW50ZWwuY29tPgo+PiBDYzogYW5kcmV3 LmNvb3BlcjNAY2l0cml4LmNvbTsgZGFyaW8uZmFnZ2lvbGlAY2l0cml4LmNvbTsKPj4gZ2Vvcmdl LmR1bmxhcEBldS5jaXRyaXguY29tOyBUaWFuLCBLZXZpbiA8a2V2aW4udGlhbkBpbnRlbC5jb20+ OyB4ZW4tCj4+IGRldmVsQGxpc3RzLnhlbi5vcmcgCj4+IFN1YmplY3Q6IFJlOiBbUEFUQ0ggdjQg Mi82XSBWTVg6IFByb3Blcmx5IGhhbmRsZSBwaSB3aGVuIGFsbCB0aGUgYXNzaWduZWQKPj4gZGV2 aWNlcyBhcmUgcmVtb3ZlZAo+PiAKPj4gPj4+IE9uIDIxLjA5LjE2IGF0IDA0OjM3LCA8ZmVuZy53 dUBpbnRlbC5jb20+IHdyb3RlOgo+PiA+ICtzdGF0aWMgdm9pZCB2bXhfcGlfbGlzdF9jbGVhbnVw KHN0cnVjdCB2Y3B1ICp2KQo+PiA+ICt7Cj4+ID4gKyAgICB2bXhfcGlfbGlzdF9yZW1vdmUodik7 Cj4+ID4gK30KPj4gCj4+IFBsZWFzZSBhdm9pZCBzdWNoIGEgbm8tb3Agd3JhcHBlciAtIHRoZSBj YWxsZXIgY2FuIGVhc2lseSBjYWxsCj4+IHZteF9waV9saXN0X3JlbW92ZSgpIGRpcmVjdGx5Lgo+ PiAKPj4gPiBAQCAtMjE1LDEzICsyMjUsMjggQEAgdm9pZCB2bXhfcGlfaG9va3NfYXNzaWduKHN0 cnVjdCBkb21haW4gKmQpCj4+ID4gIC8qIFRoaXMgZnVuY3Rpb24gaXMgY2FsbGVkIHdoZW4gcGNp ZGV2c19sb2NrIGlzIGhlbGQgKi8KPj4gPiAgdm9pZCB2bXhfcGlfaG9va3NfZGVhc3NpZ24oc3Ry dWN0IGRvbWFpbiAqZCkKPj4gPiAgewo+PiA+ICsgICAgc3RydWN0IHZjcHUgKnY7Cj4+ID4gKwo+ PiA+ICAgICAgaWYgKCAhaW9tbXVfaW50cG9zdCB8fCAhaGFzX2h2bV9jb250YWluZXJfZG9tYWlu KGQpICkKPj4gPiAgICAgICAgICByZXR1cm47Cj4+ID4KPj4gPiAgICAgIEFTU0VSVChkLT5hcmNo Lmh2bV9kb21haW4udm14LnZjcHVfYmxvY2spOwo+PiA+Cj4+ID4gKyAgICAvKgo+PiA+ICsgICAg ICogUGF1c2luZyB0aGUgZG9tYWluIGNhbiBtYWtlIHN1cmUgdGhlIHZDUFUgaXMgbm90Cj4+ID4g KyAgICAgKiBydW5uaW5nIGFuZCBoZW5jZSBjYWxsaW5nIHRoZSBob29rcyBzaW11bHRhbmVvdXNs eQo+PiA+ICsgICAgICogd2hlbiBkZWFzc2lnbmluZyB0aGUgUEkgaG9va3MgYW5kIHJlbW92aW5n IHRoZSB2Q1BVCj4+ID4gKyAgICAgKiBmcm9tIHRoZSBibG9ja2luZyBsaXN0Lgo+PiA+ICsgICAg ICovCj4+ID4gKyAgICBkb21haW5fcGF1c2UoZCk7Cj4+ID4gKwo+PiA+ICAgICAgZC0+YXJjaC5o dm1fZG9tYWluLnZteC52Y3B1X2Jsb2NrID0gTlVMTDsKPj4gPiAgICAgIGQtPmFyY2guaHZtX2Rv bWFpbi52bXgucGlfZG9fcmVzdW1lID0gTlVMTDsKPj4gPiArCj4+ID4gKyAgICBmb3JfZWFjaF92 Y3B1ICggZCwgdiApCj4+ID4gKyAgICAgICAgdm14X3BpX2xpc3RfY2xlYW51cCh2KTsKPj4gPiAr Cj4+ID4gKyAgICBkb21haW5fdW5wYXVzZShkKTsKPj4gPiAgfQo+PiAKPj4gU28geW91IGNvbnRp bnVlIHVzaW5nIHBhdXNpbmcsIGFuZCBJIGNvbnRpbnVlIHRvIG1pc3MgdGhlIGFyZ3VtZW50YXRp b24KPj4gb2Ygd2h5IHlvdSBjYW4ndCBkbyB3aXRob3V0IChldmVuIGlmIHByZXZpb3VzbHkgdGhl IGRpc2N1c3Npb24gd2FzIGZvcgo+PiBwYXRjaCA0LCBidXQgaXQgb2J2aW91c2x5IGFwcGxpZXMg aGVyZSBhcyB3ZWxsKS4KPiAKPiBJIHRoaW5rIHRoaXMgY2FzZSBpcyBzbGlnaHRseSBkaWZmZXJl bnQuIEhlcmUgd2UgbmVlZCB0byBjYWxsIAo+IHZteF9waV9saXN0X2NsZWFudXAoKQo+IHRvIHJl bW92ZSB0aGUgdkNQVSBmcm9tIHRoZSBibG9ja2luZyBsaXN0IGlmIGl0IGlzIG9uIHRoZSBsaXN0 LiBIb3dldmVyLCB0aGlzCj4gY2FuIGJlIGhhcHBlbmVkIHdoZW4gdm14X3ZjcHVfYmxvY2soKSBp cyBjYWxsZWQsIGhlbmNlIHdlIG1pZ2h0IGluY29ycmVjdGx5Cj4gYWRkIHRoZSB2Y3B1IHRvIHRo ZSBibG9ja2luZyBsaXN0IHdoaWxlIHRoZSBsYXN0IGRldmljZSBpcyBkZXRhY2hlZCBmcm9tIHRo ZSBkb21haW4uCj4gSW4gZmFjdCwgdjIgZ2F2ZSBzb21lIHRyaWNrIG1ldGhvZHMgdG8gaGFuZGxl IHRoaXMsIGFuZCB0aGF0IHdhcyBjb25zaWRlcmVkIGFzCj4gaGFyZCB0byBtYWludGFpbiwgc28g R2VvcmdlIHN1Z2dlc3RlZCB0byB1c2UgcGF1c2UvdW5wYXVzZSBmb3IgdGhpcyBjYXNlLCBhbmQg SQo+IGFsc28gdGhpbmsgaXQgaXMgZWFzeSBhbmQgYWNjZXB0YWJsZSBjb25zaWRlciB0aGF0IGRl dmljZXMgZGV0YWNoaW5nIGlzIG5vdCBhCj4gZnJlcXVlbnQgYWN0aW9uLgoKTm90ZSBob3cgSSBz YWlkICJJIGNvbnRpbnVlIHRvIG1pc3MgdGhlIGFyZ3VtZW50YXRpb24gb2Ygd2h5IHlvdQpjYW4n dCBkbyB3aXRob3V0IiAtIEknbSBub3Qgb3Bwb3NlZCB0byBwYXVzaW5nIGdldHRpbmcgdXNlZCBo ZXJlLCBidXQKaXQgbmVlZHMgdG8gYmUgYXQgbGVhc3QgYnJpZWZseSBleHBsYWluZWQgaW4gdGhl IGNvbW1pdCBtZXNzYWdlLiBUaGF0J3MKYW1vbmcgb3RoZXIgdGhpbmdzIHNvIHRoYXQgKHNlZSB0 aGF0IG90aGVyIHRocmVhZCkgcGVvcGxlIGNhbid0IGxhdGVyCmNvbWUgYW5kIHNheSAiSGV5LCBw YXVzaW5nIGlzIGRvbmUgaW4gYWxsIHNvcnRzIG9mIHNpdHVhdGlvbnMsIHdoeQp3b24ndCB5b3Ug bGV0IG1lIGFkZCBzb21lIG1vcmUgcGF1c2luZz8iCgpKYW4KCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1k ZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK