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d="scan'208";a="10935870" To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <1579030581-7929-1-git-send-email-igor.druzhinin@citrix.com> <20200115094703.GH11756@Air-de-Roger> From: Igor Druzhinin Message-ID: <7d9e9668-3b21-46c6-5428-b6e9394bb8fe@citrix.com> Date: Wed, 15 Jan 2020 12:36:08 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200115094703.GH11756@Air-de-Roger> Content-Language: en-US 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" T24gMTUvMDEvMjAyMCAwOTo0NywgUm9nZXIgUGF1IE1vbm7DqSB3cm90ZToKPiBPbiBUdWUsIEph biAxNCwgMjAyMCBhdCAwNzozNjoyMVBNICswMDAwLCBJZ29yIERydXpoaW5pbiB3cm90ZToKPj4g SWYgSVRTQyBpcyBub3QgYXZhaWxhYmxlIG9uIENQVSAoZS5nIGlmIHJ1bm5pbmcgbmVzdGVkIGFz IFBWIHNoaW0pCj4+IHRoZW4gWDg2X0ZFQVRVUkVfTk9OU1RPUF9UU0MgaXMgbm90IGFkdmVydGlz ZWQgaW4gY2VydGFpbiBjYXNlcywgaS5lLgo+PiBhbGwgQU1EIGFuZCBzb21lIG9sZCBJbnRlbCBw cm9jZXNzb3JzLiBJbiB3aGljaCBjYXNlIFRTQyB3b3VsZCBuZWVkIHRvCj4+IGJlIHJlc3RvcmVk IG9uIENQVSBmcm9tIHBsYXRmb3JtIHRpbWUgYnkgWGVuIHVwb24gZXhpdGluZyBkZWVwIEMtc3Rh dGVzLgo+Pgo+PiBBcyBwbGF0Zm9ybSB0aW1lIG1pZ2h0IGJlIGJlaGluZCB0aGUgbGFzdCBUU0Mg c3RhbXAgcmVjb3JkZWQgZm9yIHRoZQo+PiBjdXJyZW50IENQVSwgaW52YXJpYW50IG9mIFRTQyBz dGFtcCBiZWluZyBhbHdheXMgYmVoaW5kIGxvY2FsIFRTQyBjb3VudGVyCj4+IGlzIHZpb2xhdGVk LiBUaGlzIGhhcyBhbiBlZmZlY3Qgb2YgZ2V0X3NfdGltZSgpIGdvaW5nIG5lZ2F0aXZlIHJlc3Vs dGluZwo+PiBpbiBldmVudHVhbCBzeXN0ZW0gaGFuZyBvciBjcmFzaC4KPj4KPj4gRml4IHRoaXMg aXNzdWUgYnkgdXBkYXRpbmcgbG9jYWwgVFNDIHN0YW1wIGFsb25nIHdpdGggVFNDIGNvdW50ZXIg d3JpdGUuCj4gCj4gVGhhbmtzISBJIGhhdmVuJ3Qgc2VlbiBzdWNoIGlzc3VlIGJlY2F1c2UgSSd2 ZSBiZWVuIHJ1bm5pbmcgdGhlIHNoaW0KPiB3aXRoIG5vbWlncmF0ZSBpbiBvcmRlciB0byBwcmV2 ZW50IHRoZSB2VFNDIG92ZXJoZWFkLgo+IAo+Pgo+PiBTaWduZWQtb2ZmLWJ5OiBJZ29yIERydXpo aW5pbiA8aWdvci5kcnV6aGluaW5AY2l0cml4LmNvbT4KPj4gLS0tCj4+IFRoaXMgY2F1c2VkIHJl bGlhYmxlIGhhbmdzIG9mIHNoaW0gZG9tYWlucyB3aXRoIG11bHRpcGxlIHZDUFVzIG9uIGFsbCBB TUQKPj4gc3lzdGVtcy4gVGhlIHByb2JsZW0gZ290IGFsc28gcmVwcm9kdWNlZCBvbiBiYXJlLW1l dGFsIGJ5IGFydGlmaWNhbGx5Cj4+IG1hc2tpbmcgSVRTQyBmZWF0dXJlIGJpdC4gVGhlIHByb3Bv c2VkIGZpeCBoYXMgYmVlbiB2ZXJpZmllZCBmb3IgYm90aAo+PiBjYXNlcy4KPj4gLS0tCj4+ICB4 ZW4vYXJjaC94ODYvdGltZS5jIHwgOCArKysrKysrLQo+PiAgMSBmaWxlIGNoYW5nZWQsIDcgaW5z ZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2 L3RpbWUuYyBiL3hlbi9hcmNoL3g4Ni90aW1lLmMKPj4gaW5kZXggZTc5Y2I0ZC4uZjZiMjZmOCAx MDA2NDQKPj4gLS0tIGEveGVuL2FyY2gveDg2L3RpbWUuYwo+PiArKysgYi94ZW4vYXJjaC94ODYv dGltZS5jCj4+IEBAIC05NTUsMTAgKzk1NSwxNiBAQCB1NjQgc3RpbWUydHNjKHNfdGltZV90IHN0 aW1lKQo+PiAgCj4+ICB2b2lkIGNzdGF0ZV9yZXN0b3JlX3RzYyh2b2lkKQo+PiAgewo+PiArICAg IHN0cnVjdCBjcHVfdGltZSAqdCA9ICZ0aGlzX2NwdShjcHVfdGltZSk7Cj4+ICsKPj4gICAgICBp ZiAoIGJvb3RfY3B1X2hhcyhYODZfRkVBVFVSRV9OT05TVE9QX1RTQykgKQo+PiAgICAgICAgICBy ZXR1cm47Cj4+ICAKPj4gLSAgICB3cml0ZV90c2Moc3RpbWUydHNjKHJlYWRfcGxhdGZvcm1fc3Rp bWUoTlVMTCkpKTsKPj4gKyAgICB0LT5zdGFtcC5tYXN0ZXJfc3RpbWUgPSByZWFkX3BsYXRmb3Jt X3N0aW1lKE5VTEwpOwo+PiArICAgIHQtPnN0YW1wLmxvY2FsX3RzYyA9IHN0aW1lMnRzYyh0LT5z dGFtcC5tYXN0ZXJfc3RpbWUpOwo+PiArICAgIHQtPnN0YW1wLmxvY2FsX3N0aW1lID0gdC0+c3Rh bXAubWFzdGVyX3N0aW1lOwo+PiArCj4+ICsgICAgd3JpdGVfdHNjKHQtPnN0YW1wLmxvY2FsX3Rz Yyk7Cj4gCj4gSW4gb3JkZXIgdG8gYXZvaWQgdGhlIFRTQyB3cml0ZSAoYW5kIHRoZSBsaWtlbHkg YXNzb2NpYXRlZCB2bWV4aXQpLAo+IGNvdWxkIHlvdSBpbnN0ZWFkIGRvOgo+IAo+IHQtPnN0YW1w LmxvY2FsX3N0aW1lID0gdC0+c3RhbXAubWFzdGVyX3N0aW1lID0gcmVhZF9wbGF0Zm9ybV9zdGlt ZShOVUxMKTsKPiB0LT5zdGFtcC5sb2NhbF90c2MgPSByZHRzY19vcmRlcmVkKCk7CgpJIHRoaW5r IGluIHRoYXQgY2FzZSBSRFRTQyBtaWdodCByZXR1cm4gc29tZXRoaW5nIGJlaGluZCBwbGF0Zm9y bSB0aW1lCndoaWNoIGlzIG5vdCByaWdodCBJIGd1ZXNzLgoKSWdvcgoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApY ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9y Zy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==