From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v8 9/9] xen/x86: use PCID feature Date: Wed, 18 Apr 2018 09:32:57 -0600 Message-ID: <5AD7652902000078001BC6F4@prv1-mh.provo.novell.com> References: <20180418083051.8334-1-jgross@suse.com> <20180418083051.8334-10-jgross@suse.com> <5AD70C4802000078001BC4F6@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1f8p4p-0003m9-Rj for xen-devel@lists.xenproject.org; Wed, 18 Apr 2018 15:32:55 +0000 In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Andrew Cooper , Juergen Gross Cc: xen-devel , Tim Deegan List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDE4LjA0LjE4IGF0IDExOjM3LCA8amdyb3NzQHN1c2UuY29tPiB3cm90ZToKPiBPbiAx OC8wNC8xOCAxMToxMywgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+IE9uIDE4LjA0LjE4IGF0IDEw OjMwLCA8amdyb3NzQHN1c2UuY29tPiB3cm90ZToKPj4+IEF2b2lkIGZsdXNoaW5nIHRoZSBjb21w bGV0ZSBUTEIgd2hlbiBzd2l0Y2hpbmcgJWNyMyBmb3IgbWl0aWdhdGlvbiBvZgo+Pj4gTWVsdGRv d24gYnkgdXNpbmcgdGhlIFBDSUQgZmVhdHVyZSBpZiBhdmFpbGFibGUuCj4+Pgo+Pj4gV2UgYXJl IHVzaW5nIDQgUENJRCB2YWx1ZXMgZm9yIGEgNjQgYml0IHB2IGRvbWFpbiBzdWJqZWN0IHRvIFhQ VEkgYW5kCj4+PiAyIHZhbHVlcyBmb3IgdGhlIG5vbi1YUFRJIGNhc2U6Cj4+Pgo+Pj4gLSBndWVz dCBhY3RpdmUgYW5kIGluIGtlcm5lbCBtb2RlCj4+PiAtIGd1ZXN0IGFjdGl2ZSBhbmQgaW4gdXNl ciBtb2RlCj4+PiAtIGh5cGVydmlzb3IgYWN0aXZlIGFuZCBndWVzdCBpbiB1c2VyIG1vZGUgKFhQ VEkgb25seSkKPj4+IC0gaHlwZXJ2aXNvciBhY3RpdmUgYW5kIGd1ZXN0IGluIGtlcm5lbCBtb2Rl IChYUFRJIG9ubHkpCj4+Pgo+Pj4gV2UgdXNlIFBDSUQgb25seSBpZiBQQ0lEIF9hbmRfIElOVlBD SUQgYXJlIHN1cHBvcnRlZC4gV2l0aCBQQ0lEIGluIHVzZQo+Pj4gd2UgZGlzYWJsZSBnbG9iYWwg cGFnZXMgaW4gY3I0LiBBIGNvbW1hbmQgbGluZSBwYXJhbWV0ZXIgY29udHJvbHMgaW4KPj4+IHdo aWNoIGNhc2VzIFBDSUQgaXMgYmVpbmcgdXNlZC4KPj4+Cj4+PiBBcyB0aGUgbm9uLVhQVEkgY2Fz ZSBoYXMgc2hvd24gbm90IHRvIHBlcmZvcm0gYmV0dGVyIHdpdGggUENJRCBhdCBsZWFzdAo+Pj4g b24gc29tZSBtYWNoaW5lcyB0aGUgZGVmYXVsdCBpcyB0byB1c2UgUENJRCBvbmx5IGZvciBkb21h aW5zIHN1YmplY3QgdG8KPj4+IFhQVEkuCj4+Pgo+Pj4gV2l0aCBQQ0lEIGVuYWJsZWQgd2UgYWx3 YXlzIGRpc2FibGUgZ2xvYmFsIHBhZ2VzLiBUaGlzIGF2b2lkcyBoYXZpbmcgdG8KPj4+IGVpdGhl ciBmbHVzaCB0aGUgY29tcGxldGUgVExCIG9yIGRvIGEgY3ljbGUgdGhyb3VnaCBhbGwgUENJRCB2 YWx1ZXMKPj4+IHdoZW4gaW52YWxpZGF0aW5nIGEgc2luZ2xlIGdsb2JhbCBwYWdlLgo+Pj4KPj4+ IFNpZ25lZC1vZmYtYnk6IEp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KPj4+IFJldmll d2VkLWJ5OiBKYW4gQmV1bGljaCA8amJldWxpY2hAc3VzZS5jb20+Cj4+PiAtLS0KPj4+IFY2LjE6 Cj4+PiAtIGFkZHJlc3Mgc29tZSBtaW5vciBjb21tZW50cyAoSmFuIEJldWxpY2gpCj4+IAo+PiBO byB2NyBjaGFuZ2VzPyBBZmFpY3QgLi4uCj4+IAo+Pj4gQEAgLTcxNyw3ICs3MTgsNyBAQCBpbnQg X19pbml0IGRvbTBfY29uc3RydWN0X3B2KHN0cnVjdCBkb21haW4gKmQsCj4+PiAgICAgICAgICB1 cGRhdGVfY3IzKHYpOwo+Pj4gIAo+Pj4gICAgICAvKiBXZSBydW4gb24gZG9tMCdzIHBhZ2UgdGFi bGVzIGZvciB0aGUgZmluYWwgcGFydCBvZiB0aGUgYnVpbGQgCj4gcHJvY2Vzcy4gKi8KPj4+IC0g ICAgc3dpdGNoX2NyM19jcjQodi0+YXJjaC5jcjMsIHJlYWRfY3I0KCkpOwo+Pj4gKyAgICBzd2l0 Y2hfY3IzX2NyNChjcjNfcGEodi0+YXJjaC5jcjMpLCByZWFkX2NyNCgpKTsKPj4gCj4+IC4uLiBh dCBsZWFzdCB0aGlzIHdhcyBhZGRlZC4gQW5kIHRvIGJlIGhvbmVzdCBJJ20gbm90IGNvbnZpbmNl ZCBjcjNfcGEoKSBpcwo+PiB0aGUgcmlnaHQgY29uc3RydWN0IHRvIHVzZSBoZXJlOiBJdCdzIG5l aXRoZXIgY2xlYXIgd2h5IHRoZSBvdGhlciBiaXRzIGRvbid0Cj4+IG1hdHRlciBhdCB0aGlzIHBv aW50LCBub3Igd2h5IGFueSBvZiB0aGUgYml0cyB0aGF0IHlvdSBtYXNrIG91dCB0aGlzIHdheQo+ PiBuZWVkIG1hc2tpbmcgb3V0IGluIHRoZSBmaXJzdCBwbGFjZSAoZS5nLiB3aHksIGluIHRoZSBj cmFzaCBjYXNlIHRoYXQgQW5kcmV3Cj4+IGhhZCBvYnNlcnZlZCwgdGhlIG5vZmx1c2ggYml0IHdh cyB3cm9uZ2x5IHNldCkuCj4gCj4gQXQgdGhpcyBwb2ludCBpbiB0aW1lIHdlIG9ubHkgd2FudCB0 byB1c2UgYW5vdGhlciBjcjMgdmFsdWUuIFNvIFBDSURzCj4gc2hvdWxkIF9ub3RfIGJlIHVzZWQg YXMgdGhpcyB3b3VsZCByZXF1aXJlIGFkYXB0aW5nIGNyNCwgcmVzdWx0aW5nIGluCj4gd3JpdGlu ZyB0aGUgY3IzX3BhKCkgYml0cyBvbmx5LiBJdCB3b3VsZCBoYXZlIGJlZW4gcG9zc2libGUgdG8g dXNlCj4gd3JpdGVfY3IzKCkgaGVyZSwgYnV0IG9ubHkgdG9nZXRoZXIgd2l0aCBvcGVuIGNvZGlu ZyBhIFRMQiBmbHVzaCBpbgo+IG9yZGVyIHRvIGF2b2lkIGFueSBnbG9iYWwgcGFnZXMgcmVtYWlu aW5nIGluIHRoZSBUTEIuIFNvIEkgZGVjaWRlZCB0bwo+IHVzZSBzd2l0Y2hfY3IzX2NyNCgpLgo+ IAo+IFRoZSBub2ZsdXNoIGJpdCB3YXMgc2V0IGFzIGRvbTAgaXMgc3ViamVjdCB0byBYUFRJIGFu ZCBQQ0lEIHVzYWdlIGFuZAo+IHVwZGF0ZV9jcjMoKSBpcyB1cGRhdGluZyB2LT5hcmNoLmNyMyBh Y2NvcmRpbmdseS4KPiAKPiBJIGtub3cgeW91IGFyZSBub3QgZm9uZCBvZiBzZXR0aW5nIG5vZmx1 c2ggaW4gdi0+YXJjaC5jcjMuIFRoZSBvbmx5Cj4gc2Vuc2libGUgYWx0ZXJuYXRpdmUgdG8gdGhh dCB3b3VsZCBiZSBhZGRpbmcgc29tZXRoaW5nIGxpa2UKPiB2LT5hcmNoLmNyM19wY2lkX2JpdHMg YmVpbmcgb3ItZWQgdG8gdGhlIGNyMyB2YWx1ZSBpbiByZXN0b3JlX2FsbF9ndWVzdC4KPiBUaGlz IHdvdWxkIGxldCB1cyBnZXQgcmlkIG9mIGhhdmluZyB0byB1c2UgY3IzX3BhKCkgaW4gc29tZSBw bGFjZXMKPiB3aGlsZSBhZGRpbmcgYSAodmVyeSBsaXR0bGUpIHBlcmZvcm1hbmNlIHBlbmFsdHku CgpXZWxsLCBJIGhhZCBhY2NlcHRlZCB0aGUgY3VycmVudCBhcHByb2FjaCBhcyB0aGUgKHBlcmZv cm1hbmNlIHdpc2UpCmJldHRlciBhbHRlcm5hdGl2ZSwgYnV0IHdpdGggQW5kcmV3IHNoYXJpbmcg dGhhdCBvcmlnaW5hbCBjb25jZXJuIG9mIG1pbmUsCmFuZCB3aXRoIHRoZXJlIGhhdmluZyBiZWVu IGEgZmlyc3QgcmVhbCBwcm9ibGVtIHJlc3VsdGluZyBmcm9tIHRoYXQKYXBwcm9hY2gsIG1vcmUg c2VyaW91c2x5IGNvbnNpZGVyaW5nIHRoZSBhbHRlcm5hdGl2ZSBjZXJ0YWlubHkgc2VlbXMKbmVj ZXNzYXJ5LiBBbmRyZXc/Cgo+PiBJIGhvcGUgdGhlcmUgYXJlbid0IGFueSBvdGhlciBzdWNoIGhp ZGRlbiBjaGFuZ2VzIGluIHRoaXMgdmVyc2lvbiBvZiB0aGUKPj4gc2VyaWVzLgo+IAo+IE9oIHNv cnJ5LCBJIG1pc3NlZCB0byB1cGRhdGUgdGhlIGhpc3RvcnkuCj4gCj4gSSdtIG5vdCBhd2FyZSBv ZiBvdGhlciBjaGFuZ2VzIGluIHY4IChhcGFydCBmcm9tIHBhdGNoIDEgYW5kIHRoZQo+IHJlc3Vs dGluZyBuZWVkZWQgY2hhbmdlIGluIHBhdGNoIDMpLgoKQWggLSBJIGhhZG4ndCBzcG90dGVkIHRo YXQgZm9sbG93LW9uIGNoYW5nZSwgYW5kIEkndmUganVzdCBzZW50IGEgc21hbGwKY29tbWVudCBp biBpdHMgcmVnYXJkLgoKSmFuCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnBy b2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94 ZW4tZGV2ZWw=