From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: [PATCH 0/8] x86/time: improve cross-CPU clock monotonicity (and more) Date: Wed, 15 Jun 2016 03:50:11 -0600 Message-ID: <576140F302000078000F52FE@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([85.158.143.247]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bD7Si-00043X-ET for xen-devel@lists.xenproject.org; Wed, 15 Jun 2016 09:50:16 +0000 Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel Cc: Andrew Cooper , Dario Faggioli , Joao Martins List-Id: xen-devel@lists.xenproject.org MTogeDg2L3RpbWU6IGFkanVzdCBsb2NhbCBzeXN0ZW0gdGltZSBpbml0aWFsaXphdGlvbgoyOiB4 ODY6IGFsc28gZ2VuZXJhdGUgYXNzZW1ibGVyIHVzYWJsZSBlcXVhdGVzIGZvciBzeW50aGVzaXpl ZCBmZWF0dXJlcwozOiB4ODYvdGltZTogaW50cm9kdWNlIGFuZCB1c2UgcmR0c2Nfb3JkZXJlZCgp CjQ6IHg4Ni90aW1lOiBjYWxpYnJhdGUgVFNDIGFnYWluc3QgcGxhdGZvcm0gdGltZXIKNTogeDg2 L3RpbWU6IGNvcnJlY3RseSBob25vciBsYXRlIGNsZWFyaW5nIG9mIFRTQyByZWxhdGVkIGZlYXR1 cmUgZmxhZ3MKNjogeDg2L3RpbWU6IHN1cHBvcnQgMzItYml0IHdpZGUgQUNQSSBQTSB0aW1lcgo3 OiB4ODYvdGltZTogZm9sZCByZWN1cnJpbmcgY29kZQo4OiB4ODYvdGltZTogZ3JvdXAgdGltZSBz dGFtcHMgaW50byBhIHN0cnVjdHVyZQoKVGhlIGZpcnN0IHBhdGNoIHdhcyBzdWJtaXR0ZWQgb24g aXRzIG93biBiZWZvcmU7IEknZCBsaWtlIGl0IHRvIGJlCmxvb2tlZCBhdCBpbiB0aGUgY29udGV4 dCBvZiB0aGlzIGVudGlyZSBzZXJpZXMgdGhvdWdoLCBhbmQgaGVuY2UgSSdtCmluY2x1ZGluZyBp dCBoZXJlIGFnYWluLgoKRXhwZWN0YXRpb25zIHRvd2FyZHMgdGhlIGltcHJvdmVtZW50cyBvZiB3 aGF0IGlzIG5vdyBwYXRjaCA0CmRpZG4ndCBnZXQgZnVsZmlsbGVkIChpdCBicm91Z2h0IGRvd24g dGhlIHNrZXcgb25seSBiZSBhIGZhY3RvciBvZgp0d28gaW4gbXkgbWVhc3VyZW1lbnRzKSwgYnV0 IHRvICJsZXZlbCIgdGhhdCBpbXByb3ZlbWVudHMgYnkKcGF0Y2ggMyB3ZXJlIHNpZ25pZmljYW50 bHkgbGFyZ2VyIHRoYW4gZXhwZWN0ZWQgKGhlbmNlIHRoZSB0d28KZ290IHN3aXRjaGVkIGluIG9y ZGVyLCBhbGJlaXQgSSBjYW4ndCBzYXkgd2hldGhlciB0aGUgaW1wcm92ZW1lbnRzCmJ5IDMgd291 bGQgYWxzbyBiZSBhcyBwcm9taW5lbnQgd2l0aG91dCBwYXRjaCA0LCBhcyBJIHNpbXBseSBuZXZl cgptZWFzdXJlZCAzIGFsb25lKTogSSd2ZSBvYnNlcnZlZCB0aGUgVFNDIHZhbHVlIHJlYWQgd2l0 aG91dCB0aGUKb3JkZXJpbmcgZmVuY2UgdG8gYmUgdXAgdG8gc2V2ZXJhbCBodW5kcmVkIGNsb2Nr cyBvZmYgY29tcGFyZWQgdG8KdGhlIGZlbmNlZCB2YXJpYW50LgoKSSdkIGxpa2UgdG8gbm90ZSB0 aG91Z2ggdGhhdCBldmVuIHdpdGggdGhlIGZ1bGwgc2VyaWVzIGluIHBsYWNlIEknbQpzdGlsbCBz ZWVpbmcgc29tZSBza2V3LCBhbmQgbWVhc3VyZW1lbnQgb3ZlciBhYm91dCAyNGggc3VnZ2VzdHMK dGhhdCB3aGF0IGlzIGxlZnQgbm93IGlzIGFjdHVhbGx5IGluY3JlYXNpbmcgb3ZlciB0aW1lICh3 aGljaApvYnZpb3VzbHkgaXMgYmFkKS4gV2hhdCBsb29rcyBwYXJ0aWN1bGFybHkgb2RkIHRvIG1l IGlzIHRoYXQgb3Zlcgpsb25nZXIgcGVyaW9kcyBvZiB0aW1lIG1heGltdW0gc2tldyBiZXR3ZWVu IGh5cGVydGhyZWFkcwpzdGF5cyByZWxhdGl2ZWx5IHN0YWJsZSBvbiBhIGNlcnRhaW4gY29yZSwg YnV0IGV2ZW50dWFsbHkgYW5vdGhlcgpjb3JlIG1heSAib3ZlcnRha2UiKS4gU28gZmFyIEkgZGlk IG5vdCBoYXZlIGEgZ29vZCBpZGVhIG9mIHdoYXQKbWlnaHQgYmUgY2F1c2luZyB0aGlzIChzaG9y dCBvZiBzdXNwZWN0aW5nIGNvbnN0YW50IFRTQyBub3QgcmVhbGx5CmJlaW5nIGFsbCB0aGF0IGNv bnN0YW50KS4KCkFub3RoZXIgb2JzZXJ2ZWQgb2RkaXR5IGlzIHRoYXQgd2l0aCB0aGlzIGRlYnVn Z2luZyBjb2RlCgpAQCAtMTI1OSw2ICsxMzI3LDE0IEBAIHRpbWVfY2FsaWJyYXRpb25fcmVuZGV6 dm91c190YWlsKGNvbnN0IHMKICAgICBjLT5sb2NhbF90c2MgICAgPSByZHRzY19vcmRlcmVkKCk7 CiAgICAgYy0+bG9jYWxfc3RpbWUgID0gZ2V0X3NfdGltZV9maXhlZChjLT5sb2NhbF90c2MpOwog ICAgIGMtPm1hc3Rlcl9zdGltZSA9IHItPm1hc3Rlcl9zdGltZTsKK3svL3RlbXAKKyBzNjQgZGVs dGEgPSByZHRzY19vcmRlcmVkKCkgLSBjLT5sb2NhbF90c2M7Cisgc3RhdGljIHM2NCBkZWx0YV9t YXggPSAxMDA7CisgaWYoZGVsdGEgPiBkZWx0YV9tYXgpIHsKKyAgZGVsdGFfbWF4ID0gZGVsdGE7 CisgIHByaW50aygiQ1BVJTAydTogZGVsdGE9JWxkXG4iLCBzbXBfcHJvY2Vzc29yX2lkKCksIGRl bHRhKTsKKyB9Cit9CiAKICAgICByYWlzZV9zb2Z0aXJxKFRJTUVfQ0FMSUJSQVRFX1NPRlRJUlEp OwogfQoKYWRkZWQgb24gdG9wIG9mIHRoZSBzZXJpZXMgZGVsdGFzIG9mIGJleW9uZCAyMCwwMDAg Z2V0IGxvZ2dlZC4KQWZhaWN0IChJIGFkbWl0IEkgZGlkbid0IGNoZWNrKSBpbnRlcnJ1cHRzIGFy ZSBvZmYgaGVyZSwgc28gSSBjYW4ndApzZWUgd2hlcmUgc3VjaCBzcGlrZXMgd291bGQgcmVzdWx0 IGZyb20uIElzIGEgd2F0Y2hkb2cgTk1JIGEKcG9zc2libGUgZXhwbGFuYXRpb24gZm9yIHRoaXM/ IElmIHNvLCB3aGF0IG90aGVyIGJhZCBlZmZlY3RzIG9uCnRpbWUgY2FsY3VsYXRpb25zIG1pZ2h0 IHJlc3VsdCBmcm9tIHN1Y2ggZXZlbnRzPyBBbmQgaG93IHdvdWxkCm9uZSBleHBsYWluIHNwaWtl cyBvZiBib3RoIGFyb3VuZCAxMywwMDAgYW5kIDIyLDAwMCB3aXRoIHRoaXMKKEknZCBleHBlY3Qg aW5kaXZpZHVhbCB3YXRjaGRvZyBOTUlzIHRvIGFsd2F5cyB0YWtlIGFib3V0IHRoZQpzYW1lIHRp bWUpPwoKU2lnbmVkLW9mZi1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29tPgoKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBt YWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcv eGVuLWRldmVsCg==