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d="scan'208";a="11365709" Date: Wed, 15 Jan 2020 10:47:03 +0100 From: Roger Pau =?iso-8859-1?Q?Monn=E9?= To: Igor Druzhinin Message-ID: <20200115094703.GH11756@Air-de-Roger> References: <1579030581-7929-1-git-send-email-igor.druzhinin@citrix.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1579030581-7929-1-git-send-email-igor.druzhinin@citrix.com> X-ClientProxiedBy: AMSPEX02CAS01.citrite.net (10.69.22.112) To AMSPEX02CL01.citrite.net (10.69.22.125) Subject: Re: [Xen-devel] [PATCH] x86/time: update TSC stamp on restore from deep C-state 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: xen-devel@lists.xenproject.org, wl@xen.org, jbeulich@suse.com, andrew.cooper3@citrix.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gVHVlLCBKYW4gMTQsIDIwMjAgYXQgMDc6MzY6MjFQTSArMDAwMCwgSWdvciBEcnV6aGluaW4g d3JvdGU6Cj4gSWYgSVRTQyBpcyBub3QgYXZhaWxhYmxlIG9uIENQVSAoZS5nIGlmIHJ1bm5pbmcg bmVzdGVkIGFzIFBWIHNoaW0pCj4gdGhlbiBYODZfRkVBVFVSRV9OT05TVE9QX1RTQyBpcyBub3Qg YWR2ZXJ0aXNlZCBpbiBjZXJ0YWluIGNhc2VzLCBpLmUuCj4gYWxsIEFNRCBhbmQgc29tZSBvbGQg SW50ZWwgcHJvY2Vzc29ycy4gSW4gd2hpY2ggY2FzZSBUU0Mgd291bGQgbmVlZCB0bwo+IGJlIHJl c3RvcmVkIG9uIENQVSBmcm9tIHBsYXRmb3JtIHRpbWUgYnkgWGVuIHVwb24gZXhpdGluZyBkZWVw IEMtc3RhdGVzLgo+IAo+IEFzIHBsYXRmb3JtIHRpbWUgbWlnaHQgYmUgYmVoaW5kIHRoZSBsYXN0 IFRTQyBzdGFtcCByZWNvcmRlZCBmb3IgdGhlCj4gY3VycmVudCBDUFUsIGludmFyaWFudCBvZiBU U0Mgc3RhbXAgYmVpbmcgYWx3YXlzIGJlaGluZCBsb2NhbCBUU0MgY291bnRlcgo+IGlzIHZpb2xh dGVkLiBUaGlzIGhhcyBhbiBlZmZlY3Qgb2YgZ2V0X3NfdGltZSgpIGdvaW5nIG5lZ2F0aXZlIHJl c3VsdGluZwo+IGluIGV2ZW50dWFsIHN5c3RlbSBoYW5nIG9yIGNyYXNoLgo+IAo+IEZpeCB0aGlz IGlzc3VlIGJ5IHVwZGF0aW5nIGxvY2FsIFRTQyBzdGFtcCBhbG9uZyB3aXRoIFRTQyBjb3VudGVy IHdyaXRlLgoKVGhhbmtzISBJIGhhdmVuJ3Qgc2VlbiBzdWNoIGlzc3VlIGJlY2F1c2UgSSd2ZSBi ZWVuIHJ1bm5pbmcgdGhlIHNoaW0Kd2l0aCBub21pZ3JhdGUgaW4gb3JkZXIgdG8gcHJldmVudCB0 aGUgdlRTQyBvdmVyaGVhZC4KCj4gCj4gU2lnbmVkLW9mZi1ieTogSWdvciBEcnV6aGluaW4gPGln b3IuZHJ1emhpbmluQGNpdHJpeC5jb20+Cj4gLS0tCj4gVGhpcyBjYXVzZWQgcmVsaWFibGUgaGFu Z3Mgb2Ygc2hpbSBkb21haW5zIHdpdGggbXVsdGlwbGUgdkNQVXMgb24gYWxsIEFNRAo+IHN5c3Rl bXMuIFRoZSBwcm9ibGVtIGdvdCBhbHNvIHJlcHJvZHVjZWQgb24gYmFyZS1tZXRhbCBieSBhcnRp ZmljYWxseQo+IG1hc2tpbmcgSVRTQyBmZWF0dXJlIGJpdC4gVGhlIHByb3Bvc2VkIGZpeCBoYXMg YmVlbiB2ZXJpZmllZCBmb3IgYm90aAo+IGNhc2VzLgo+IC0tLQo+ICB4ZW4vYXJjaC94ODYvdGlt ZS5jIHwgOCArKysrKysrLQo+ICAxIGZpbGUgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCspLCAxIGRl bGV0aW9uKC0pCj4gCj4gZGlmZiAtLWdpdCBhL3hlbi9hcmNoL3g4Ni90aW1lLmMgYi94ZW4vYXJj aC94ODYvdGltZS5jCj4gaW5kZXggZTc5Y2I0ZC4uZjZiMjZmOCAxMDA2NDQKPiAtLS0gYS94ZW4v YXJjaC94ODYvdGltZS5jCj4gKysrIGIveGVuL2FyY2gveDg2L3RpbWUuYwo+IEBAIC05NTUsMTAg Kzk1NSwxNiBAQCB1NjQgc3RpbWUydHNjKHNfdGltZV90IHN0aW1lKQo+ICAKPiAgdm9pZCBjc3Rh dGVfcmVzdG9yZV90c2Modm9pZCkKPiAgewo+ICsgICAgc3RydWN0IGNwdV90aW1lICp0ID0gJnRo aXNfY3B1KGNwdV90aW1lKTsKPiArCj4gICAgICBpZiAoIGJvb3RfY3B1X2hhcyhYODZfRkVBVFVS RV9OT05TVE9QX1RTQykgKQo+ICAgICAgICAgIHJldHVybjsKPiAgCj4gLSAgICB3cml0ZV90c2Mo c3RpbWUydHNjKHJlYWRfcGxhdGZvcm1fc3RpbWUoTlVMTCkpKTsKPiArICAgIHQtPnN0YW1wLm1h c3Rlcl9zdGltZSA9IHJlYWRfcGxhdGZvcm1fc3RpbWUoTlVMTCk7Cj4gKyAgICB0LT5zdGFtcC5s b2NhbF90c2MgPSBzdGltZTJ0c2ModC0+c3RhbXAubWFzdGVyX3N0aW1lKTsKPiArICAgIHQtPnN0 YW1wLmxvY2FsX3N0aW1lID0gdC0+c3RhbXAubWFzdGVyX3N0aW1lOwo+ICsKPiArICAgIHdyaXRl X3RzYyh0LT5zdGFtcC5sb2NhbF90c2MpOwoKSW4gb3JkZXIgdG8gYXZvaWQgdGhlIFRTQyB3cml0 ZSAoYW5kIHRoZSBsaWtlbHkgYXNzb2NpYXRlZCB2bWV4aXQpLApjb3VsZCB5b3UgaW5zdGVhZCBk bzoKCnQtPnN0YW1wLmxvY2FsX3N0aW1lID0gdC0+c3RhbXAubWFzdGVyX3N0aW1lID0gcmVhZF9w bGF0Zm9ybV9zdGltZShOVUxMKTsKdC0+c3RhbXAubG9jYWxfdHNjID0gcmR0c2Nfb3JkZXJlZCgp OwoKSSB0aGluayBpdCBzaG91bGQgYWNoaWV2ZSB0aGUgc2FtZSBhcyBpdCBzeW5jcyB0aGUgbG9j YWwgVFNDIHN0YW1wIGFuZAp0aW1lcywgd291bGQgYXZvaWQgdGhlIFRTQyB3cml0ZSBhbmQgc2xp Z2h0bHkgc2ltcGxpZmllcyB0aGUgbG9naWMuCgpUaGFua3MsIFJvZ2VyLgoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlz dApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0 Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==