From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dong, Eddie" Subject: RE: [KVM timekeeping 26/35] Catchup slower TSC to guest rate Date: Tue, 7 Sep 2010 11:44:01 +0800 Message-ID: <1A42CE6F5F474C41B63392A5F80372B22A8253C5@shsmsx501.ccr.corp.intel.com> References: <1282291669-25709-1-git-send-email-zamsden@redhat.com> <1282291669-25709-27-git-send-email-zamsden@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Cc: Avi Kivity , Marcelo Tosatti , Glauber Costa , Thomas Gleixner , John Stultz , "linux-kernel@vger.kernel.org" , "Dong, Eddie" To: Zachary Amsden , "kvm@vger.kernel.org" Return-path: In-Reply-To: <1282291669-25709-27-git-send-email-zamsden@redhat.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org WmFjaGFyeToNCglXaWxsIHlvdSBleHRlbmQgdGhlIGxvZ2ljIHRvIGNvdmVyIHRoZSBzaXR1YXRp b24gd2hlbiB0aGUgZ3Vlc3QgcnVucyBhdCBoaWdoZXIgdGhhbiB0aGUgZ3Vlc3QgcmF0ZSBidXQg dGhlIFBDUFUgaXMgb3ZlciBjb21taXR0ZWQuIEluIHRoYXQgY2FzZSwgbGlrZWx5IHdlIGNhbiB1 c2UgdGhlIHRpbWUgc3BlbnQgd2hlbiB0aGUgVkNQVSBpcyBzY2hlZHVsZWQgb3V0IHRvIGNhdGNo IHVwIGFzIHdlbGwuIE9mIGNvdXJzZSBpZiB0aGUgVkNQVSBzY2hlZHVsZWQgb3V0IHRpbWUgaXMg bm90IGVub3VnaCB0byBjb21wZW5zYXRlIHRoZSBjeWNsZXMgY2F1c2VkIGJ5IGZhc3QgaG9zdCBU U0MgKGV4Y2VlZGluZyBhIHRocmVhaG9sZCksIHdlIHdpbGwgZXZlbnR1YWxseSBoYXZlIHRvIGZh bGwgYmFjayB0byB0cmFwIGFuZCBlbXVsYXRpb24gbW9kZS4NCg0KVGh4LCBFZGRpZQ0KDQotLS0t LU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KRnJvbToga3ZtLW93bmVyQHZnZXIua2VybmVsLm9yZyBb bWFpbHRvOmt2bS1vd25lckB2Z2VyLmtlcm5lbC5vcmddIE9uIEJlaGFsZiBPZiBaYWNoYXJ5IEFt c2Rlbg0KU2VudDogMjAxMMTqONTCMjDI1SAxNjowOA0KVG86IGt2bUB2Z2VyLmtlcm5lbC5vcmcN CkNjOiBaYWNoYXJ5IEFtc2RlbjsgQXZpIEtpdml0eTsgTWFyY2VsbyBUb3NhdHRpOyBHbGF1YmVy IENvc3RhOyBUaG9tYXMgR2xlaXhuZXI7IEpvaG4gU3R1bHR6OyBsaW51eC1rZXJuZWxAdmdlci5r ZXJuZWwub3JnDQpTdWJqZWN0OiBbS1ZNIHRpbWVrZWVwaW5nIDI2LzM1XSBDYXRjaHVwIHNsb3dl ciBUU0MgdG8gZ3Vlc3QgcmF0ZQ0KDQpVc2UgdGhlIGNhdGNodXAgY29kZSB0byBjb250aW51ZSBh ZGp1c3RpbmcgdGhlIFRTQyB3aGVuDQpydW5uaW5nIGF0IGxvd2VyIHRoYW4gdGhlIGd1ZXN0IHJh dGUNCg0KU2lnbmVkLW9mZi1ieTogWmFjaGFyeSBBbXNkZW4gPHphbXNkZW5AcmVkaGF0LmNvbT4N Ci0tLQ0KIGFyY2gveDg2L2t2bS94ODYuYyB8ICAgIDkgKysrKysrKystDQogMSBmaWxlcyBjaGFu Z2VkLCA4IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb25zKC0pDQoNCmRpZmYgLS1naXQgYS9hcmNo L3g4Ni9rdm0veDg2LmMgYi9hcmNoL3g4Ni9rdm0veDg2LmMNCmluZGV4IGE0MjE1ZDcuLjA4NmQ1 NmEgMTAwNjQ0DQotLS0gYS9hcmNoL3g4Ni9rdm0veDg2LmMNCisrKyBiL2FyY2gveDg2L2t2bS94 ODYuYw0KQEAgLTEwMTMsOCArMTAxMywxMSBAQCBzdGF0aWMgaW50IGt2bV9ndWVzdF90aW1lX3Vw ZGF0ZShzdHJ1Y3Qga3ZtX3ZjcHUgKnYpDQogCQkJa3ZtX3g4Nl9vcHMtPmFkanVzdF90c2Nfb2Zm c2V0KHYsIHRzYy10c2NfdGltZXN0YW1wKTsNCiAJfQ0KIAlsb2NhbF9pcnFfcmVzdG9yZShmbGFn cyk7DQotCWlmIChjYXRjaHVwKQ0KKwlpZiAoY2F0Y2h1cCkgew0KKwkJaWYgKHRoaXNfdHNjX2to eiA8IHYtPmt2bS0+YXJjaC52aXJ0dWFsX3RzY19raHopDQorCQkJdmNwdS0+dHNjX3JlYmFzZSA9 IDE7DQogCQlyZXR1cm4gMDsNCisJfQ0KIA0KIAkvKg0KIAkgKiBUaW1lIGFzIG1lYXN1cmVkIGJ5 IHRoZSBUU0MgbWF5IGdvIGJhY2t3YXJkcyB3aGVuIHJlc2V0dGluZyB0aGUgYmFzZQ0KQEAgLTUw MjIsNiArNTAyNSwxMCBAQCBzdGF0aWMgaW50IHZjcHVfZW50ZXJfZ3Vlc3Qoc3RydWN0IGt2bV92 Y3B1ICp2Y3B1KQ0KIA0KIAlrdm1fZ3Vlc3RfZXhpdCgpOw0KIA0KKwkvKiBSdW5uaW5nIG9uIHNs b3dlciBUU0Mgd2l0aG91dCBrdm1jbG9jaywgd2UgbXVzdCBidW1wIFRTQyAqLw0KKwlpZiAodmNw dS0+YXJjaC50c2NfcmViYXNlKQ0KKwkJa3ZtX3JlcXVlc3RfY2xvY2tfdXBkYXRlKHZjcHUpOw0K Kw0KIAlwcmVlbXB0X2VuYWJsZSgpOw0KIA0KIAl2Y3B1LT5zcmN1X2lkeCA9IHNyY3VfcmVhZF9s b2NrKCZ2Y3B1LT5rdm0tPnNyY3UpOw0KLS0gDQoxLjcuMQ0KDQotLQ0KVG8gdW5zdWJzY3JpYmUg ZnJvbSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVuc3Vic2NyaWJlIGt2bSIgaW4NCnRoZSBi b2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnDQpNb3JlIG1ham9y ZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwN Cg==