From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Gao Subject: Re: [PATCH v3 3/3] VT-d PI: restrict the vcpu number on a given pcpu Date: Fri, 23 Jun 2017 16:33:35 +0800 Message-ID: <20170623083332.GA7556@skl-2s3.sh.intel.com> References: <1495608977-15921-1-git-send-email-chao.gao@intel.com> <1495608977-15921-4-git-send-email-chao.gao@intel.com> <594410B9020000780016380D@prv-mh.provo.novell.com> <20170623042207.GA57685@skl-2s3.sh.intel.com> <594CE65C0200007800166166@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <594CE65C0200007800166166@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich Cc: Andrew Cooper , Kevin Tian , Jun Nakajima , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gRnJpLCBKdW4gMjMsIDIwMTcgYXQgMDE6NTg6NTJBTSAtMDYwMCwgSmFuIEJldWxpY2ggd3Jv dGU6Cj4+Pj4gT24gMjMuMDYuMTcgYXQgMDY6MjIsIDxjaGFvLmdhb0BpbnRlbC5jb20+IHdyb3Rl Ogo+PiBPbiBGcmksIEp1biAxNiwgMjAxNyBhdCAwOTowOToxM0FNIC0wNjAwLCBKYW4gQmV1bGlj aCB3cm90ZToKPj4+Pj4+IE9uIDI0LjA1LjE3IGF0IDA4OjU2LCA8Y2hhby5nYW9AaW50ZWwuY29t PiB3cm90ZToKPj4+PiArICAgIHsKPj4+PiArICAgICAgICBwaV9jcHUgPSBjcHVtYXNrX2N5Y2xl KHBpX2NwdSwgJmNwdV9vbmxpbmVfbWFwKTsKPj4+Cj4+PldpdGggdGhpcywgaG93IGNvdWxkIHRo ZSBDUFUgYmUgb2ZmbGluZSBieSB0aGUgdGltZSB5b3UgbWFrZSBpdAo+Pj5iYWNrIHRvIHRoZSBj aGVjayBhYm92ZS4KPj4gCj4+IFRoYW5rcyB0byBwb2ludCBpdCBvdXQuIEl0IHdvdWxkIGluY3Vy IGEgYnVnLgo+Cj5JIGRvbid0IHVuZGVyc3RhbmQgd2hhdCB5b3UncmUgdHJ5aW5nIHRvIHRlbGwg bWUgaGVyZS4KPgoKSSBhZ3JlZSB3aXRoIHlvdSB0aGF0IHdlIG1pZ2h0IHVzZSBhbiBvZmZsaW5l IENQVSdzIHN0cnVjdHVyZS4KYW5kIEkgdHJlYXQgaXQgYXMgYSBidWcuCgo+PiBJIHRoaW5rIHdl IHNob3VsZCBkbyB0aGluZ3MgbGlrZSB0aGlzOgo+PiAKPj4gSUYgcGlfYmxvY2tpbmdfbGlzdCBv ZiBjdXJyZW50IHBjcHUgZG9lc24ndCBvdmVyIHRoZSBsaW1pdDoKPj4gCWFkZCB0aGUgdmNwdSB0 byBjdXJyZW50IHBjcHUuCj4+IEVMU0UKPj4gCWFkZCB0aGUgdmNwdSB0byBhbm90aGVyIHBjcHUu Cj4KPkJ1dCB0aGF0J3Mgd2hhdCBzdXBwb3NlZGx5IHRoZSBwYXRjaCBhbHJlYWR5IHRyaWVzIHRv IGRvPwoKeWVzLiBpdCBpcy4gYnV0IEkgd2FudCB0byB1bmNsb3NlIGEga2V5IHByb2JsZW0gaGVy ZSBpcwp3ZSBtYXkgYWRkIGEgdmNwdSB0byBhbiBvZmZsaW5lIHBjcHUncyBwaSBibG9ja2luZyBs aXN0LiBUcnkgdG8KYXZvaWQgdGhpcyB3ZSBjYW4gaW50cm9kdWNlIGEgX25ld18gbG9jayB0byBh dm9pZCByYWNpbmcgd2l0aAp2bXhfcGlfZGVzY19maXh1cCgpLiBUaGlzIHZlcnNpb24gdHJpZWQg dG8gdXNlIGV4aXN0aW5nIGxvY2sgCmllLiBwZXJfY3B1KHZteF9waV9ibG9ja2luZywgcGlfY3B1 KS5sb2NrIHRvIHNvbHZlIHRoZSBrZXkgcHJvYmxlbS4KQnV0IGFzIHlvdSBwb2ludGVkIG91dCwg aXQgbWF5IHVzZSBhIG9mZmxpbmUgQ1BVJ3Mgc3RydWN0dXJlLgoKPgo+PiBUbyBhZGQgdGhlIHZj cHUgdG8gYW5vdGhlciBwY3B1LCB3ZSBzaG91bGQgYXZvaWQgY29uY3VycmVuY3kgd2l0aAo+PiB2 bXhfcGlfZGVzY19maXh1cCgpLiBUaHVzLCBhIGxvY2sgKGUuZy4gcmVtb3RlX3BpX2xpc3RfbG9j aykKPgo+UGxlYXNlIHVzZSBuYW1lcyB3aGljaCBhY3R1YWxseSBleGlzdCBpbiBzb3VyY2UgY29k ZSwgb3IgbWFrZQo+Y2xlYXIgd2hhdCBleGFjdGx5IHlvdSdyZSByZWZlcnJpbmcgdG8uIFRhbGtp bmcgb2YKPnJlbW90ZV9waV9saXN0X2xvY2ssIHdoaWNoIEkgY2FuJ3QgZmluZCBhbnkgaW5zdGFu Y2Ugb2YsIGRvZXMgbm90Cj5oZWxwIHRoZSBkaXNjdXNzaW9uLCBhcyB5b3UgbGVhdmUgbWUgZ3Vl c3Npbmcgd2hvc2UgbG9jayB5b3UKPm1lYW4gdG8gYWNxdWlyZS4KCkl0IGlzIGEgbmV3IGxvY2sg YW5kIEkgdHJ5IHRvIGVudmlzaW9uIGhvdyBpdCBjYW4gdGFrZSBlZmZlY3QuCgo+Cj4+IGNhbiBz b2x2ZSB0aGlzIHBvdGVudGlhbCBjb25jdXJyZW5jeS4gVXNpbmcgdGhpcyBsb2NrIGxpa2UgYmVs b3c6Cj4+IAo+PiBpbiB2bXhfdmNwdV9ibG9jaygpOgo+PiAKPj4gSUYgcGlfYmxvY2tpbmdfbGlz dCBvZiBjdXJyZW50IHBjcHUgZG9lc24ndCBvdmVyIHRoZSBsaW1pdDoKPj4gCWFkZCB0aGUgdmNw dSB0byBjdXJyZW50IHBjcHUKPj4gRUxTRQo+PiAJYWNxdWlyZSByZW1vdGVfcGlfbGlzdF9sb2Nr Cj4+IAljaG9vc2UgYW5vdGhlciBvbmxpbmUgcGNwdQkoZG9uJ3Qgd29ycnkgdGhpcyBwY3B1IHdv dWxkIGdvZXMKPj4gCQkJCQkgb2ZmbGluZSBmb3Igd2UgaG9sZCB0aGUKPj4gCQkJCQkgcmVtb3Rl X3BpX2xpc3RfbG9jaywgd2hpY2ggYmxvY2tzCj4+IAkJCQkJIGNhbGxpbmcgdm14X3BpX2Rlc2Nf Zml4dXAoKSwKPj4gCQkJCQkgdGh1cyBhdCBsZWFzdCB3ZSBjYW4gYWRkIHRoaXMKPj4gCQkJCQkg dmNwdSB0byB0aGUgcGlfYmxvY2tpbmdfbGlzdAo+PiAJCQkJCSBiZWZvcmUgY2xlYW51cCkKPgo+ SSBjYW4ndCBzZWUgd2h5IHlvdSBuZWVkIHRvIGhvbGQgYSBsb2NrIHRvIG1ha2Ugc3VyZSBhIHBD UFUgZG9lc24ndAo+Z28gb2ZmbGluZSAtIHBDUFUgb2ZmbGluaW5nIGhhcHBlbnMgaW4gc3RvcF9t YWNoaW5lIGNvbnRleHQgYW55d2F5LgoKSW4gY3B1X2Rvd24oKSwgdGhlIGNwdV9vbmxpbmVfYml0 bWFwIGlzIGNsZWFyZWQgYnkgdGhpcyBsaW5lOgoJaWYgKCAoZXJyID0gc3RvcF9tYWNoaW5lX3J1 bih0YWtlX2NwdV9kb3duLCBOVUxMLCBjcHUpKSA8IDAgKQoKQW5kIHZteF9waV9kZXNjX2ZpeHVw KCkgaXMgY2FsbGVkIGxhdGVyIGJ5Cglub3RpZmllcl9jYWxsX2NoYWluKCZjcHVfY2hhaW4sIENQ VV9ERUFELCBoY3B1LCBOVUxMKTsKClNvIEkgdGhpbmsgaWYgd2UgYWNxdWlyZSB0aGUgbmV3IGxv Y2ssIG5hbWVseSByZW1vdGVfcGlfbGlzdF9sb2NrIGJlZm9yZQpjaG9vc2UgYW5vdGhlciBvbmxp bmUgcGNwdSwgd2UgY2FuIG1ha2Ugc3VyZSB0aGUgdmNwdSB3aWxsIGJlIGFkZGVkIHRvCnRoZSBj aG9zZW4gcGNwdSdzIHBpIGJsb2NraW5nIGxpc3QgcHJpb3IgdG8gc29tZSBjbGVhbnVwIHRvIHRo ZSBzYW1lIHBpCmJsb2NraW5nIGxpc3QuCgpUaGFua3MKQ2hhbwoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4t ZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==