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x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: nTGTnh8+3PSuwKsFnYIkmxkAzE8BsgxS23YrJMTpBcM3tAB1bO/KkEfG7hFjydv15iwz2zpVgB I5/HhxCr6/rXWCXDoxbgcFMMGfcBIQYEeA4NnlilUTTpigtwlp3i1yYVdL6WEN+h2gt5/8WXIA tNzgaCjPwreCZZ1QlFGRDFelxNDLqyQdjZUJ6qE44HMSMCYrbfZDtp1uNxDjoLi9++z7ysdmtZ imp3DtCJGYq1P1dgupNmacD/ACFmVgAehEHoGzEdNp3DWAXGRpusyEGbZ4vzTeKifP55Xnppw1 rls= X-SBRS: 2.7 X-MesageID: 1538594 X-Ironport-Server: esa4.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.63,575,1557201600"; d="scan'208";a="1538594" To: Jan Beulich , xen-devel References: <5CE68CD30200007800231B01@prv1-mh.provo.novell.com> <5CE68F830200007800231B3B@prv1-mh.provo.novell.com> From: Andrew Cooper Openpgp: preference=signencrypt Autocrypt: addr=andrew.cooper3@citrix.com; prefer-encrypt=mutual; keydata= mQINBFLhNn8BEADVhE+Hb8i0GV6mihnnr/uiQQdPF8kUoFzCOPXkf7jQ5sLYeJa0cQi6Penp VtiFYznTairnVsN5J+ujSTIb+OlMSJUWV4opS7WVNnxHbFTPYZVQ3erv7NKc2iVizCRZ2Kxn srM1oPXWRic8BIAdYOKOloF2300SL/bIpeD+x7h3w9B/qez7nOin5NzkxgFoaUeIal12pXSR Q354FKFoy6Vh96gc4VRqte3jw8mPuJQpfws+Pb+swvSf/i1q1+1I4jsRQQh2m6OTADHIqg2E ofTYAEh7R5HfPx0EXoEDMdRjOeKn8+vvkAwhviWXTHlG3R1QkbE5M/oywnZ83udJmi+lxjJ5 YhQ5IzomvJ16H0Bq+TLyVLO/VRksp1VR9HxCzItLNCS8PdpYYz5TC204ViycobYU65WMpzWe LFAGn8jSS25XIpqv0Y9k87dLbctKKA14Ifw2kq5OIVu2FuX+3i446JOa2vpCI9GcjCzi3oHV e00bzYiHMIl0FICrNJU0Kjho8pdo0m2uxkn6SYEpogAy9pnatUlO+erL4LqFUO7GXSdBRbw5 gNt25XTLdSFuZtMxkY3tq8MFss5QnjhehCVPEpE6y9ZjI4XB8ad1G4oBHVGK5LMsvg22PfMJ ISWFSHoF/B5+lHkCKWkFxZ0gZn33ju5n6/FOdEx4B8cMJt+cWwARAQABtClBbmRyZXcgQ29v cGVyIDxhbmRyZXcuY29vcGVyM0BjaXRyaXguY29tPokCOgQTAQgAJAIbAwULCQgHAwUVCgkI CwUWAgMBAAIeAQIXgAUCWKD95wIZAQAKCRBlw/kGpdefoHbdD/9AIoR3k6fKl+RFiFpyAhvO 59ttDFI7nIAnlYngev2XUR3acFElJATHSDO0ju+hqWqAb8kVijXLops0gOfqt3VPZq9cuHlh IMDquatGLzAadfFx2eQYIYT+FYuMoPZy/aTUazmJIDVxP7L383grjIkn+7tAv+qeDfE+txL4 SAm1UHNvmdfgL2/lcmL3xRh7sub3nJilM93RWX1Pe5LBSDXO45uzCGEdst6uSlzYR/MEr+5Z JQQ32JV64zwvf/aKaagSQSQMYNX9JFgfZ3TKWC1KJQbX5ssoX/5hNLqxMcZV3TN7kU8I3kjK mPec9+1nECOjjJSO/h4P0sBZyIUGfguwzhEeGf4sMCuSEM4xjCnwiBwftR17sr0spYcOpqET ZGcAmyYcNjy6CYadNCnfR40vhhWuCfNCBzWnUW0lFoo12wb0YnzoOLjvfD6OL3JjIUJNOmJy RCsJ5IA/Iz33RhSVRmROu+TztwuThClw63g7+hoyewv7BemKyuU6FTVhjjW+XUWmS/FzknSi dAG+insr0746cTPpSkGl3KAXeWDGJzve7/SBBfyznWCMGaf8E2P1oOdIZRxHgWj0zNr1+ooF /PzgLPiCI4OMUttTlEKChgbUTQ+5o0P080JojqfXwbPAyumbaYcQNiH1/xYbJdOFSiBv9rpt TQTBLzDKXok86LkCDQRS4TZ/ARAAkgqudHsp+hd82UVkvgnlqZjzz2vyrYfz7bkPtXaGb9H4 Rfo7mQsEQavEBdWWjbga6eMnDqtu+FC+qeTGYebToxEyp2lKDSoAsvt8w82tIlP/EbmRbDVn 7bhjBlfRcFjVYw8uVDPptT0TV47vpoCVkTwcyb6OltJrvg/QzV9f07DJswuda1JH3/qvYu0p vjPnYvCq4NsqY2XSdAJ02HrdYPFtNyPEntu1n1KK+gJrstjtw7KsZ4ygXYrsm/oCBiVW/OgU g/XIlGErkrxe4vQvJyVwg6YH653YTX5hLLUEL1NS4TCo47RP+wi6y+TnuAL36UtK/uFyEuPy wwrDVcC4cIFhYSfsO0BumEI65yu7a8aHbGfq2lW251UcoU48Z27ZUUZd2Dr6O/n8poQHbaTd 6bJJSjzGGHZVbRP9UQ3lkmkmc0+XCHmj5WhwNNYjgbbmML7y0fsJT5RgvefAIFfHBg7fTY/i kBEimoUsTEQz+N4hbKwo1hULfVxDJStE4sbPhjbsPCrlXf6W9CxSyQ0qmZ2bXsLQYRj2xqd1 bpA+1o1j2N4/au1R/uSiUFjewJdT/LX1EklKDcQwpk06Af/N7VZtSfEJeRV04unbsKVXWZAk uAJyDDKN99ziC0Wz5kcPyVD1HNf8bgaqGDzrv3TfYjwqayRFcMf7xJaL9xXedMcAEQEAAYkC HwQYAQgACQUCUuE2fwIbDAAKCRBlw/kGpdefoG4XEACD1Qf/er8EA7g23HMxYWd3FXHThrVQ HgiGdk5Yh632vjOm9L4sd/GCEACVQKjsu98e8o3ysitFlznEns5EAAXEbITrgKWXDDUWGYxd pnjj2u+GkVdsOAGk0kxczX6s+VRBhpbBI2PWnOsRJgU2n10PZ3mZD4Xu9kU2IXYmuW+e5KCA vTArRUdCrAtIa1k01sPipPPw6dfxx2e5asy21YOytzxuWFfJTGnVxZZSCyLUO83sh6OZhJkk b9rxL9wPmpN/t2IPaEKoAc0FTQZS36wAMOXkBh24PQ9gaLJvfPKpNzGD8XWR5HHF0NLIJhgg 4ZlEXQ2fVp3XrtocHqhu4UZR4koCijgB8sB7Tb0GCpwK+C4UePdFLfhKyRdSXuvY3AHJd4CP 4JzW0Bzq/WXY3XMOzUTYApGQpnUpdOmuQSfpV9MQO+/jo7r6yPbxT7CwRS5dcQPzUiuHLK9i nvjREdh84qycnx0/6dDroYhp0DFv4udxuAvt1h4wGwTPRQZerSm4xaYegEFusyhbZrI0U9tJ B8WrhBLXDiYlyJT6zOV2yZFuW47VrLsjYnHwn27hmxTC/7tvG3euCklmkn9Sl9IAKFu29RSo d5bD8kMSCYsTqtTfT6W4A3qHGvIDta3ptLYpIAOD2sY3GYq2nf3Bbzx81wZK14JdDDHUX2Rs 6+ahAA== Message-ID: <483c4bbc-4915-48a3-9295-4d5a2bf6a02e@citrix.com> Date: Mon, 10 Jun 2019 17:28:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <5CE68F830200007800231B3B@prv1-mh.provo.novell.com> Content-Language: en-GB X-ClientProxiedBy: AMSPEX02CAS02.citrite.net (10.69.22.113) To AMSPEX02CL02.citrite.net (10.69.22.126) Subject: Re: [Xen-devel] [PATCH 3/5] x86/AMD: make C-state handling independent of Dom0 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Wei Liu , Brian Woods , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMjMvMDUvMjAxOSAxMzoxOCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4gQXQgbGVhc3QgZm9yIG1v cmUgcmVjZW50IENQVXMsIGZvbGxvd2luZyB3aGF0IEJLREcgLyBQUFIgc3VnZ2VzdCBmb3IgdGhl Cj4gQklPUyB0byBzdXJmYWNlIHZpYSBBQ1BJIHdlIGNhbiBtYWtlIG91cnNlbHZlcyBpbmRlcGVu ZGVudCBvZiBEb20wCj4gdXBsb2FkaW5nIHJlc3BlY3RpdmUgZGF0YS4KPgo+IFNpZ25lZC1vZmYt Ynk6IEphbiBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPiAtLS0KPiBUQkQ6IENhbiB3ZSBz ZXQgbG9jYWxfYXBpY190aW1lcl9jMl9vayB0byB0cnVlPyBJIGNhbid0IHNlZW0gdG8gZmluZCBh bnkKPiAgICAgIHN0YXRlbWVudCBpbiB0aGUgQktERyAvIFBQUiBhcyB0byB3aGV0aGVyIHRoZSBM QVBJQyB0aW1lciBjb250aW51ZXMKPiAgICAgIHJ1bm5pbmcgaW4gQ0M2LgoKVGhpcyBvdWdodCB0 byBiZSBlYXN5IHRvIGRldGVybWluZS7CoCBHaXZlbiB0aGUgZGVzY3JpcHRpb24gb2YgQ0M2CmZs dXNoaW5nIHRoZSBjYWNoZSBhbmQgcG93ZXIgZ2F0aW5nIHRoZSBjb3JlLCBJJ2Qgc2F5IHRoZXJl IGlzIGEKcmVhc29uYWJsZSBjaGFuY2UgdGhhdCB0aGUgTEFQSUMgdGltZXIgc3RvcHMgaW4gQ0M2 LgoKPiBUQkQ6IFdlIG1heSB3YW50IHRvIHZlcmlmeSB0aGF0IEhMVCBpbmRlZWQgaXMgY29uZmln dXJlZCB0byBlbnRlciBDQzYuCgpJIGNhbid0IGFjdHVhbGx5IHNwb3QgYW55dGhpbmcgd2hpY2gg dGFsa3MgYWJvdXQgSExUIGRpcmVjdGx5LsKgIFRoZQpjbG9zZXN0IEkgY2FuIHBvc3QgaXMgQ0ZP SCAoY2FjaGUgZmx1c2ggb24gaGFsdCkgd2hpY2ggaXMgYW4KYXV0by10cmFuc2l0aW9uIGZyb20g Q0MxIHRvIENDNiBhZnRlciBhIHNwZWNpZmljIHRpbWVvdXQsIGJ1dCB0aGUKd29yZGluZyBzdWdn ZXN0cyB0aGF0IG13YWl0IHdvdWxkIGFsc28gdGFrZSB0aGlzIHBhdGguCgo+IFRCRDogQnJpYW4n cyBzZXJpZXMgc3BlY2lmaWVzIC50YXJnZXRfcmVzaWRlbmN5IGFzIDEwMDAgZm9yIENDNjsgbWF5 Cj4gICAgICB3YW50IHRvIGRvIHNvIGhlcmUgYXMgd2VsbC4gUXVlc3Rpb24gdGhlbiBpcyB3aGV0 aGVyIHRoaXMgdmFsdWUgaXMKPiAgICAgIGFsc28gc3VpdGFibGUgZm9yIHRoZSBvbGRlciBmYW1p bGllcy4KCldlbGwgLSB0aGUgUFBSIGRvZXMgc2F5IDQwMC4KCj4gVEJEOiBJIGd1ZXNzIHdlIGNv dWxkIGV4dGVuZCB0aGlzIHRvIGZhbWlsaWVzIG9sZGVyIHRoZW4gRmFtMTUgYXMgd2VsbC4KPgo+ IC0tLSBhL3hlbi9hcmNoL3g4Ni9hY3BpL2NwdV9pZGxlLmMKPiArKysgYi94ZW4vYXJjaC94ODYv YWNwaS9jcHVfaWRsZS5jCj4gQEAgLTEyODMsNiArMTI4OCw5OCBAQCBsb25nIHNldF9jeF9wbWlu Zm8odWludDMyX3QgYWNwaV9pZCwgc3RyCj4gICAgICByZXR1cm4gMDsKPiAgfQo+ICAKPiArc3Rh dGljIHZvaWQgYW1kX2NwdWlkbGVfaW5pdChzdHJ1Y3QgYWNwaV9wcm9jZXNzb3JfcG93ZXIgKnBv d2VyKQo+ICt7Cj4gKyAgICB1bnNpZ25lZCBpbnQgaSwgbnIgPSAwOwo+ICsgICAgY29uc3Qgc3Ry dWN0IGNwdWluZm9feDg2ICpjID0gJmN1cnJlbnRfY3B1X2RhdGE7Cj4gKyAgICBjb25zdCB1bnNp Z25lZCBpbnQgZWN4X3JlcSA9IENQVUlENV9FQ1hfRVhURU5TSU9OU19TVVBQT1JURUQgfAo+ICsg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBDUFVJRDVfRUNYX0lOVEVSUlVQVF9CUkVB SzsKPiArICAgIGNvbnN0IHN0cnVjdCBhY3BpX3Byb2Nlc3Nvcl9jeCAqY3ggPSBOVUxMOwo+ICsg ICAgc3RhdGljIGNvbnN0IHN0cnVjdCBhY3BpX3Byb2Nlc3Nvcl9jeCBmYW0xN1tdID0gewo+ICsg ICAgICAgIHsKPiArICAgICAgICAgICAgLnR5cGUgPSBBQ1BJX1NUQVRFX0MxLAo+ICsgICAgICAg ICAgICAuZW50cnlfbWV0aG9kID0gQUNQSV9DU1RBVEVfRU1fRkZILAo+ICsgICAgICAgICAgICAu YWRkcmVzcyA9IDAsCj4gKyAgICAgICAgICAgIC5sYXRlbmN5ID0gMSwKPiArICAgICAgICB9LAo+ ICsgICAgICAgIHsKPiArICAgICAgICAgICAgLnR5cGUgPSBBQ1BJX1NUQVRFX0MyLAo+ICsgICAg ICAgICAgICAuZW50cnlfbWV0aG9kID0gQUNQSV9DU1RBVEVfRU1fSEFMVCwKPiArICAgICAgICAg ICAgLmxhdGVuY3kgPSA0MDAsCj4gKyAgICAgICAgfSwKPiArICAgIH07Cj4gKwo+ICsgICAgaWYg KCBwbV9pZGxlX3NhdmUgJiYgcG1faWRsZSAhPSBhY3BpX3Byb2Nlc3Nvcl9pZGxlICkKPiArICAg ICAgICByZXR1cm47Cj4gKwo+ICsgICAgaWYgKCB2ZW5kb3Jfb3ZlcnJpZGUgPCAwICkKPiArICAg ICAgICByZXR1cm47Cj4gKwo+ICsgICAgc3dpdGNoICggYy0+eDg2ICkKPiArICAgIHsKPiArICAg IGNhc2UgMHgxNzoKCldpdGggSHlnb24gaW4gdGhlIG1peCwgdGhpcyBzaG91bGQgYmUgZXhwYW5k ZWQgdG8gRmFtMThoLgoKfkFuZHJldwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVu cHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZv L3hlbi1kZXZlbA==