From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dongli Zhang Subject: [PATCH v5 1/1] xen/time: do not decrease steal time after live migration on xen Date: Mon, 30 Oct 2017 16:03:33 +0800 Message-ID: <1509350613-15356-1-git-send-email-dongli.zhang__13825.3320278183$1509350718$gmane$org@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e953E-0003Yp-2h for xen-devel@lists.xenproject.org; Mon, 30 Oct 2017 08:04:04 +0000 List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Cc: jgross@suse.com, boris.ostrovsky@oracle.com, joao.m.martins@oracle.com List-Id: xen-devel@lists.xenproject.org QWZ0ZXIgZ3Vlc3QgbGl2ZSBtaWdyYXRpb24gb24geGVuLCBzdGVhbCB0aW1lIGluIC9wcm9jL3N0 YXQKKGNwdXN0YXRbQ1BVVElNRV9TVEVBTF0pIG1pZ2h0IGRlY3JlYXNlIGJlY2F1c2Ugc3RlYWwg cmV0dXJuZWQgYnkKeGVuX3N0ZWFsX2xvY2soKSBtaWdodCBiZSBsZXNzIHRoYW4gdGhpc19ycSgp LT5wcmV2X3N0ZWFsX3RpbWUgd2hpY2ggaXMKZGVyaXZlZCBmcm9tIHByZXZpb3VzIHJldHVybiB2 YWx1ZSBvZiB4ZW5fc3RlYWxfY2xvY2soKS4KCkZvciBpbnN0YW5jZSwgc3RlYWwgdGltZSBvZiBl YWNoIHZjcHUgaXMgMzM1IGJlZm9yZSBsaXZlIG1pZ3JhdGlvbi4KCmNwdSAgMTk4IDAgMzY4IDIw MDA2NCAxOTYyIDAgMCAxMzQwIDAgMApjcHUwIDM4IDAgODEgNTAwNjMgNDkyIDAgMCAzMzUgMCAw CmNwdTEgNjUgMCA5NyA0OTc2MyA2MzQgMCAwIDMzNSAwIDAKY3B1MiAzOCAwIDgxIDUwMDk4IDQ2 MiAwIDAgMzM1IDAgMApjcHUzIDU2IDAgMTA3IDUwMTM4IDM3NCAwIDAgMzM1IDAgMAoKQWZ0ZXIg bGl2ZSBtaWdyYXRpb24sIHN0ZWFsIHRpbWUgaXMgcmVkdWNlZCB0byAzMTIuCgpjcHUgIDIwMCAw IDM3MCAyMDAzMzAgMTk3MSAwIDAgMTI0OCAwIDAKY3B1MCAzOCAwIDgyIDUwMTIzIDUwMCAwIDAg MzEyIDAgMApjcHUxIDY1IDAgOTcgNDk4MzIgNjM0IDAgMCAzMTIgMCAwCmNwdTIgMzkgMCA4MiA1 MDE2NyA0NjIgMCAwIDMxMiAwIDAKY3B1MyA1NiAwIDEwNyA1MDIwNyAzNzQgMCAwIDMxMiAwIDAK ClNpbmNlIHJ1bnN0YXRlIHRpbWVzIGFyZSBjdW11bGF0aXZlIGFuZCBjbGVhcmVkIGR1cmluZyB4 ZW4gbGl2ZSBtaWdyYXRpb24KYnkgeGVuIGh5cGVydmlzb3IsIHRoZSBpZGVhIG9mIHRoaXMgcGF0 Y2ggaXMgdG8gYWNjdW11bGF0ZSBydW5zdGF0ZSB0aW1lcwp0byBnbG9iYWwgcGVyY3B1IHZhcmlh YmxlcyBiZWZvcmUgbGl2ZSBtaWdyYXRpb24gc3VzcGVuZC4gT25jZSBndWVzdCBWTSBpcwpyZXN1 bWVkLCB4ZW5fZ2V0X3J1bnN0YXRlX3NuYXBzaG90X2NwdSgpIHdvdWxkIGFsd2F5cyByZXR1cm4g dGhlIHN1bSBvZiBuZXcKcnVuc3RhdGUgdGltZXMgYW5kIHByZXZpb3VzbHkgYWNjdW11bGF0ZWQg dGltZXMgc3RvcmVkIGluIGdsb2JhbCBwZXJjcHUKdmFyaWFibGVzLgoKU2ltaWxhciBhbmQgbW9y ZSBzZXZlcmUgaXNzdWUgd291bGQgaW1wYWN0IHByaW9yIGxpbnV4IDQuOC00LjEwIGFzCmRpc2N1 c3NlZCBieSBNaWNoYWVsIExhcyBhdApodHRwczovLzB4c3R1YnMub3JnL2RlYnVnZ2luZy1hLWZs YWt5LWNwdS1zdGVhbC10aW1lLWNvdW50ZXItb24tYS1wYXJhdmlydHVhbGl6ZWQteGVuLWd1ZXN0 LAp3aGljaCB3b3VsZCBvdmVyZmxvdyBzdGVhbCB0aW1lIGFuZCBsZWFkIHRvIDEwMCUgc3QgdXNh Z2UgaW4gdG9wIGNvbW1hbmQKZm9yIGxpbnV4IDQuOC00LjEwLiBBIGJhY2twb3J0IG9mIHRoaXMg cGF0Y2ggd291bGQgZml4IHRoYXQgaXNzdWUuCgpSZWZlcmVuY2VzOiBodHRwczovLzB4c3R1YnMu b3JnL2RlYnVnZ2luZy1hLWZsYWt5LWNwdS1zdGVhbC10aW1lLWNvdW50ZXItb24tYS1wYXJhdmly dHVhbGl6ZWQteGVuLWd1ZXN0ClNpZ25lZC1vZmYtYnk6IERvbmdsaSBaaGFuZyA8ZG9uZ2xpLnpo YW5nQG9yYWNsZS5jb20+CgotLS0KQ2hhbmdlZCBzaW5jZSB2MToKICAqIHJlbG9jYXRlIG1vZGlm aWNhdGlvbiB0byB4ZW5fZ2V0X3J1bnN0YXRlX3NuYXBzaG90X2NwdQoKQ2hhbmdlZCBzaW5jZSB2 MjoKICAqIGFjY3VtdWxhdGUgcnVuc3RhdGUgdGltZXMgYmVmb3JlIGxpdmUgbWlncmF0aW9uCgpD aGFuZ2VkIHNpbmNlIHYzOgogICogZG8gbm90IGFjY3VtdWxhdGUgdGltZXMgaW4gdGhlIGNhc2Ug b2YgZ3Vlc3QgY2hlY2twb2ludGluZwoKQ2hhbmdlZCBzaW5jZSB2NDoKICAqIGFsbG9jYXRlIGFy cmF5IG9mIHZjcHVfcnVuc3RhdGVfaW5mbyB0byByZWR1Y2UgbnVtYmVyIG9mIG1lbW9yeSBhbGxv Y2F0aW9uCgotLS0KIGRyaXZlcnMveGVuL21hbmFnZS5jICAgICAgICAgfCAgMiArKwogZHJpdmVy cy94ZW4vdGltZS5jICAgICAgICAgICB8IDY4ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKy0tCiBpbmNsdWRlL3hlbi9pbnRlcmZhY2UvdmNwdS5oIHwgIDIgKysKIGlu Y2x1ZGUveGVuL3hlbi1vcHMuaCAgICAgICAgfCAgMSArCiA0IGZpbGVzIGNoYW5nZWQsIDcxIGlu c2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy94ZW4vbWFu YWdlLmMgYi9kcml2ZXJzL3hlbi9tYW5hZ2UuYwppbmRleCBjNDI1ZDAzLi4zZGMwODVkIDEwMDY0 NAotLS0gYS9kcml2ZXJzL3hlbi9tYW5hZ2UuYworKysgYi9kcml2ZXJzL3hlbi9tYW5hZ2UuYwpA QCAtNzIsNiArNzIsNyBAQCBzdGF0aWMgaW50IHhlbl9zdXNwZW5kKHZvaWQgKmRhdGEpCiAJfQog CiAJZ250dGFiX3N1c3BlbmQoKTsKKwl4ZW5fYWNjdW11bGF0ZV9ydW5zdGF0ZV90aW1lKC0xKTsK IAl4ZW5fYXJjaF9wcmVfc3VzcGVuZCgpOwogCiAJLyoKQEAgLTg0LDYgKzg1LDcgQEAgc3RhdGlj IGludCB4ZW5fc3VzcGVuZCh2b2lkICpkYXRhKQogICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIDogMCk7CiAKIAl4ZW5fYXJjaF9wb3N0X3N1c3BlbmQoc2ktPmNhbmNl bGxlZCk7CisJeGVuX2FjY3VtdWxhdGVfcnVuc3RhdGVfdGltZShzaS0+Y2FuY2VsbGVkKTsKIAln bnR0YWJfcmVzdW1lKCk7CiAKIAlpZiAoIXNpLT5jYW5jZWxsZWQpIHsKZGlmZiAtLWdpdCBhL2Ry aXZlcnMveGVuL3RpbWUuYyBiL2RyaXZlcnMveGVuL3RpbWUuYwppbmRleCBhYzVmMjNmLi5jZjNh ZmI5IDEwMDY0NAotLS0gYS9kcml2ZXJzL3hlbi90aW1lLmMKKysrIGIvZHJpdmVycy94ZW4vdGlt ZS5jCkBAIC0xOSw2ICsxOSw5IEBACiAvKiBydW5zdGF0ZSBpbmZvIHVwZGF0ZWQgYnkgWGVuICov CiBzdGF0aWMgREVGSU5FX1BFUl9DUFUoc3RydWN0IHZjcHVfcnVuc3RhdGVfaW5mbywgeGVuX3J1 bnN0YXRlKTsKIAorc3RhdGljIERFRklORV9QRVJfQ1BVKHU2NFtSVU5TVEFURV9tYXhdLCBvbGRf cnVuc3RhdGVfdGltZSk7CitzdGF0aWMgc3RydWN0IHZjcHVfcnVuc3RhdGVfaW5mbyAqcnVuc3Rh dGVfZGVsdGE7CisKIC8qIHJldHVybiBhbiBjb25zaXN0ZW50IHNuYXBzaG90IG9mIDY0LWJpdCB0 aW1lL2NvdW50ZXIgdmFsdWUgKi8KIHN0YXRpYyB1NjQgZ2V0NjQoY29uc3QgdTY0ICpwKQogewpA QCAtNDcsOCArNTAsOCBAQCBzdGF0aWMgdTY0IGdldDY0KGNvbnN0IHU2NCAqcCkKIAlyZXR1cm4g cmV0OwogfQogCi1zdGF0aWMgdm9pZCB4ZW5fZ2V0X3J1bnN0YXRlX3NuYXBzaG90X2NwdShzdHJ1 Y3QgdmNwdV9ydW5zdGF0ZV9pbmZvICpyZXMsCi0JCQkJCSAgdW5zaWduZWQgaW50IGNwdSkKK3N0 YXRpYyB2b2lkIHhlbl9nZXRfcnVuc3RhdGVfc25hcHNob3RfY3B1X2RlbHRhKAorCQkJc3RydWN0 IHZjcHVfcnVuc3RhdGVfaW5mbyAqcmVzLCB1bnNpZ25lZCBpbnQgY3B1KQogewogCXU2NCBzdGF0 ZV90aW1lOwogCXN0cnVjdCB2Y3B1X3J1bnN0YXRlX2luZm8gKnN0YXRlOwpAQCAtNjYsNiArNjks NjcgQEAgc3RhdGljIHZvaWQgeGVuX2dldF9ydW5zdGF0ZV9zbmFwc2hvdF9jcHUoc3RydWN0IHZj cHVfcnVuc3RhdGVfaW5mbyAqcmVzLAogCQkgKHN0YXRlX3RpbWUgJiBYRU5fUlVOU1RBVEVfVVBE QVRFKSk7CiB9CiAKK3N0YXRpYyB2b2lkIHhlbl9nZXRfcnVuc3RhdGVfc25hcHNob3RfY3B1KHN0 cnVjdCB2Y3B1X3J1bnN0YXRlX2luZm8gKnJlcywKKwkJCQkJICB1bnNpZ25lZCBpbnQgY3B1KQor eworCWludCBpOworCisJeGVuX2dldF9ydW5zdGF0ZV9zbmFwc2hvdF9jcHVfZGVsdGEocmVzLCBj cHUpOworCisJZm9yIChpID0gMDsgaSA8IFJVTlNUQVRFX21heDsgaSsrKQorCQlyZXMtPnRpbWVb aV0gKz0gcGVyX2NwdShvbGRfcnVuc3RhdGVfdGltZSwgY3B1KVtpXTsKK30KKwordm9pZCB4ZW5f YWNjdW11bGF0ZV9ydW5zdGF0ZV90aW1lKGludCBhY3Rpb24pCit7CisJc3RydWN0IHZjcHVfcnVu c3RhdGVfaW5mbyBzdGF0ZTsKKwlpbnQgY3B1LCBpOworCisJc3dpdGNoIChhY3Rpb24pIHsKKwlj YXNlIC0xOiAvKiBiYWNrdXAgcnVuc3RhdGUgdGltZSBiZWZvcmUgc3VzcGVuZCAqLworCQlXQVJO X09OX09OQ0UodW5saWtlbHkocnVuc3RhdGVfZGVsdGEpKTsKKworCQlydW5zdGF0ZV9kZWx0YSA9 IGtjYWxsb2MobnVtX3Bvc3NpYmxlX2NwdXMoKSwKKwkJCQkJIHNpemVvZigqcnVuc3RhdGVfZGVs dGEpLAorCQkJCQkgR0ZQX0tFUk5FTCk7CisJCWlmICh1bmxpa2VseSghcnVuc3RhdGVfZGVsdGEp KSB7CisJCQlwcl9hbGVydCgiJXM6IGZhaWxlZCB0byBhbGxvY2F0ZSBydW5zdGF0ZV9kZWx0YVxu IiwKKwkJCQkgICAgX19mdW5jX18pOworCQkJcmV0dXJuOworCQl9CisKKwkJZm9yX2VhY2hfcG9z c2libGVfY3B1KGNwdSkgeworCQkJeGVuX2dldF9ydW5zdGF0ZV9zbmFwc2hvdF9jcHVfZGVsdGEo JnN0YXRlLCBjcHUpOworCQkJbWVtY3B5KHJ1bnN0YXRlX2RlbHRhW2NwdV0udGltZSwgc3RhdGUu dGltZSwKKwkJCSAgICAgIFJVTlNUQVRFX21heCAqIHNpemVvZigqcnVuc3RhdGVfZGVsdGFbY3B1 XS50aW1lKSk7CisJCX0KKworCQlicmVhazsKKworCWNhc2UgMDogLyogYmFja3VwIHJ1bnN0YXRl IHRpbWUgYWZ0ZXIgcmVzdW1lICovCisJCWlmICh1bmxpa2VseSghcnVuc3RhdGVfZGVsdGEpKSB7 CisJCQlwcl9hbGVydCgiJXM6IGNhbm5vdCBhY2N1bXVsYXRlIHJ1bnN0YXRlIHRpbWUgYXMgcnVu c3RhdGVfZGVsdGEgaXMgTlVMTFxuIiwKKwkJCQkgICAgX19mdW5jX18pOworCQkJcmV0dXJuOwor CQl9CisKKwkJZm9yX2VhY2hfcG9zc2libGVfY3B1KGNwdSkgeworCQkJZm9yIChpID0gMDsgaSA8 IFJVTlNUQVRFX21heDsgaSsrKQorCQkJCXBlcl9jcHUob2xkX3J1bnN0YXRlX3RpbWUsIGNwdSlb aV0gKz0KKwkJCQkJcnVuc3RhdGVfZGVsdGFbY3B1XS50aW1lW2ldOworCQl9CisJCWJyZWFrOwor CisJZGVmYXVsdDogLyogZG8gbm90IGFjY3VtdWxhdGUgcnVuc3RhdGUgdGltZSBmb3IgY2hlY2tw b2ludGluZyAqLworCQlicmVhazsKKwl9CisKKwlpZiAoYWN0aW9uICE9IC0xICYmIHJ1bnN0YXRl X2RlbHRhKSB7CisJCWtmcmVlKHJ1bnN0YXRlX2RlbHRhKTsKKwkJcnVuc3RhdGVfZGVsdGEgPSBO VUxMOworCX0KK30KKwogLyoKICAqIFJ1bnN0YXRlIGFjY291bnRpbmcKICAqLwpkaWZmIC0tZ2l0 IGEvaW5jbHVkZS94ZW4vaW50ZXJmYWNlL3ZjcHUuaCBiL2luY2x1ZGUveGVuL2ludGVyZmFjZS92 Y3B1LmgKaW5kZXggOTgxODhjOC4uODVlODFjZSAxMDA2NDQKLS0tIGEvaW5jbHVkZS94ZW4vaW50 ZXJmYWNlL3ZjcHUuaAorKysgYi9pbmNsdWRlL3hlbi9pbnRlcmZhY2UvdmNwdS5oCkBAIC0xMTAs NiArMTEwLDggQEAgREVGSU5FX0dVRVNUX0hBTkRMRV9TVFJVQ1QodmNwdV9ydW5zdGF0ZV9pbmZv KTsKICAqLwogI2RlZmluZSBSVU5TVEFURV9vZmZsaW5lICAzCiAKKyNkZWZpbmUgUlVOU1RBVEVf bWF4ICAgICAgNAorCiAvKgogICogUmVnaXN0ZXIgYSBzaGFyZWQgbWVtb3J5IGFyZWEgZnJvbSB3 aGljaCB0aGUgZ3Vlc3QgbWF5IG9idGFpbiBpdHMgb3duCiAgKiBydW5zdGF0ZSBpbmZvcm1hdGlv biB3aXRob3V0IG5lZWRpbmcgdG8gZXhlY3V0ZSBhIGh5cGVyY2FsbC4KZGlmZiAtLWdpdCBhL2lu Y2x1ZGUveGVuL3hlbi1vcHMuaCBiL2luY2x1ZGUveGVuL3hlbi1vcHMuaAppbmRleCAyMThlNmFh Li5iMWY5YWU5IDEwMDY0NAotLS0gYS9pbmNsdWRlL3hlbi94ZW4tb3BzLmgKKysrIGIvaW5jbHVk ZS94ZW4veGVuLW9wcy5oCkBAIC0zMiw2ICszMiw3IEBAIHZvaWQgeGVuX3Jlc3VtZV9ub3RpZmll cl91bnJlZ2lzdGVyKHN0cnVjdCBub3RpZmllcl9ibG9jayAqbmIpOwogYm9vbCB4ZW5fdmNwdV9z dG9sZW4oaW50IHZjcHUpOwogdm9pZCB4ZW5fc2V0dXBfcnVuc3RhdGVfaW5mbyhpbnQgY3B1KTsK IHZvaWQgeGVuX3RpbWVfc2V0dXBfZ3Vlc3Qodm9pZCk7Cit2b2lkIHhlbl9hY2N1bXVsYXRlX3J1 bnN0YXRlX3RpbWUoaW50IGFjdGlvbik7CiB2b2lkIHhlbl9nZXRfcnVuc3RhdGVfc25hcHNob3Qo c3RydWN0IHZjcHVfcnVuc3RhdGVfaW5mbyAqcmVzKTsKIHU2NCB4ZW5fc3RlYWxfY2xvY2soaW50 IGNwdSk7CiAKLS0gCjIuNy40CgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9y ZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==