From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96FFCC3F2D2 for ; Fri, 28 Feb 2020 10:17:12 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6FC46246AF for ; Fri, 28 Feb 2020 10:17:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6FC46246AF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j7chN-0004cW-Pr; Fri, 28 Feb 2020 10:16:49 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j7chM-0004cP-CV for xen-devel@lists.xenproject.org; Fri, 28 Feb 2020 10:16:48 +0000 X-Inumbo-ID: 6d38317a-5a13-11ea-83b0-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 6d38317a-5a13-11ea-83b0-bc764e2007e4; Fri, 28 Feb 2020 10:16:47 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 6C2F5AD5C; Fri, 28 Feb 2020 10:16:46 +0000 (UTC) To: Roger Pau Monne References: <20200228093334.36586-1-roger.pau@citrix.com> <20200228093334.36586-3-roger.pau@citrix.com> From: Jan Beulich Message-ID: <12c75d73-cc89-9b8c-011a-b6e11f6cf58d@suse.com> Date: Fri, 28 Feb 2020 11:16:55 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200228093334.36586-3-roger.pau@citrix.com> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v4 2/2] x86: add accessors for scratch cpu mask 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, Wei Liu , Andrew Cooper Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMjguMDIuMjAyMCAxMDozMywgUm9nZXIgUGF1IE1vbm5lIHdyb3RlOgo+IEN1cnJlbnQgdXNh Z2Ugb2YgdGhlIHBlci1DUFUgc2NyYXRjaCBjcHVtYXNrIGlzIGRhbmdlcm91cyBzaW5jZQo+IHRo ZXJlJ3Mgbm8gd2F5IHRvIGZpZ3VyZSBvdXQgaWYgdGhlIG1hc2sgaXMgYWxyZWFkeSBiZWluZyB1 c2VkIGV4Y2VwdAo+IGZvciBtYW51YWwgY29kZSBpbnNwZWN0aW9uIG9mIGFsbCB0aGUgY2FsbGVy cyBhbmQgcG9zc2libGUgY2FsbCBwYXRocy4KPiAKPiBUaGlzIGlzIHVuc2FmZSBhbmQgbm90IHJl bGlhYmxlLCBzbyBpbnRyb2R1Y2UgYSBtaW5pbWFsIGdldC9wdXQKPiBpbmZyYXN0cnVjdHVyZSB0 byBwcmV2ZW50IG5lc3RlZCB1c2FnZSBvZiB0aGUgc2NyYXRjaCBtYXNrIGFuZCB1c2FnZQo+IGlu IGludGVycnVwdCBjb250ZXh0Lgo+IAo+IE1vdmUgdGhlIGRlZmluaXRpb24gb2Ygc2NyYXRjaF9j cHVtYXNrIHRvIHNtcC5jIGluIG9yZGVyIHRvIHBsYWNlIHRoZQo+IGRlY2xhcmF0aW9uIGFuZCB0 aGUgYWNjZXNzb3JzIGFzIGNsb3NlIGFzIHBvc3NpYmxlLgoKWW91J3ZlIGNoYW5nZWQgb25lIGlu c3RhbmNlIG9mICJkZWNsYXJhdGlvbiIsIGJ1dCBub3QgYWxzbyB0aGUgb3RoZXIuCgo+IC0tLSBh L3hlbi9hcmNoL3g4Ni9pcnEuYwo+ICsrKyBiL3hlbi9hcmNoL3g4Ni9pcnEuYwo+IEBAIC0xOTYs NyArMTk2LDcgQEAgc3RhdGljIHZvaWQgX2NsZWFyX2lycV92ZWN0b3Ioc3RydWN0IGlycV9kZXNj ICpkZXNjKQo+ICB7Cj4gICAgICB1bnNpZ25lZCBpbnQgY3B1LCBvbGRfdmVjdG9yLCBpcnEgPSBk ZXNjLT5pcnE7Cj4gICAgICB1bnNpZ25lZCBpbnQgdmVjdG9yID0gZGVzYy0+YXJjaC52ZWN0b3I7 Cj4gLSAgICBjcHVtYXNrX3QgKnRtcF9tYXNrID0gdGhpc19jcHUoc2NyYXRjaF9jcHVtYXNrKTsK PiArICAgIGNwdW1hc2tfdCAqdG1wX21hc2sgPSBnZXRfc2NyYXRjaF9jcHVtYXNrKCk7Cj4gIAo+ ICAgICAgQlVHX09OKCF2YWxpZF9pcnFfdmVjdG9yKHZlY3RvcikpOwo+ICAKPiBAQCAtMjA4LDYg KzIwOCw3IEBAIHN0YXRpYyB2b2lkIF9jbGVhcl9pcnFfdmVjdG9yKHN0cnVjdCBpcnFfZGVzYyAq ZGVzYykKPiAgICAgICAgICBBU1NFUlQocGVyX2NwdSh2ZWN0b3JfaXJxLCBjcHUpW3ZlY3Rvcl0g PT0gaXJxKTsKPiAgICAgICAgICBwZXJfY3B1KHZlY3Rvcl9pcnEsIGNwdSlbdmVjdG9yXSA9IH5p cnE7Cj4gICAgICB9Cj4gKyAgICBwdXRfc2NyYXRjaF9jcHVtYXNrKHRtcF9tYXNrKTsKPiAgCj4g ICAgICBkZXNjLT5hcmNoLnZlY3RvciA9IElSUV9WRUNUT1JfVU5BU1NJR05FRDsKPiAgICAgIGNw dW1hc2tfY2xlYXIoZGVzYy0+YXJjaC5jcHVfbWFzayk7Cj4gQEAgLTIyNyw4ICsyMjgsOSBAQCBz dGF0aWMgdm9pZCBfY2xlYXJfaXJxX3ZlY3RvcihzdHJ1Y3QgaXJxX2Rlc2MgKmRlc2MpCj4gIAo+ ICAgICAgLyogSWYgd2Ugd2VyZSBpbiBtb3Rpb24sIGFsc28gY2xlYXIgZGVzYy0+YXJjaC5vbGRf dmVjdG9yICovCj4gICAgICBvbGRfdmVjdG9yID0gZGVzYy0+YXJjaC5vbGRfdmVjdG9yOwo+IC0g ICAgY3B1bWFza19hbmQodG1wX21hc2ssIGRlc2MtPmFyY2gub2xkX2NwdV9tYXNrLCAmY3B1X29u bGluZV9tYXApOwo+ICAKPiArICAgIGNwdW1hc2tfYW5kKHRtcF9tYXNrLCBkZXNjLT5hcmNoLm9s ZF9jcHVfbWFzaywgJmNwdV9vbmxpbmVfbWFwKTsKPiArICAgIHRtcF9tYXNrID0gZ2V0X3NjcmF0 Y2hfY3B1bWFzaygpOwoKRGlkIHlvdSB0ZXN0IHRoaXM/IEl0IGxvb2tzIG92ZXJ3aGVsbWluZ2x5 IGxpa2VseSB0aGF0IHRoZSB0d28KbGluZXMgbmVlZCB0byBiZSB0aGUgb3RoZXIgd2F5IGFyb3Vu ZC4KCj4gQEAgLTQzODQsNiArNDM4OSwxNyBAQCBzdGF0aWMgaW50IF9fZG9fdXBkYXRlX3ZhX21h cHBpbmcoCj4gICAgICAgICAgYnJlYWs7Cj4gICAgICB9Cj4gIAo+ICsgICAgc3dpdGNoICggZmxh Z3MgJiB+VVZNRl9GTFVTSFRZUEVfTUFTSyApCj4gKyAgICB7Cj4gKyAgICBjYXNlIFVWTUZfTE9D QUw6Cj4gKyAgICBjYXNlIFVWTUZfQUxMOgo+ICsgICAgICAgIGJyZWFrOwo+ICsKPiArICAgIGRl ZmF1bHQ6Cj4gKyAgICAgICAgcHV0X3NjcmF0Y2hfY3B1bWFzayhtYXNrKTsKPiArICAgIH0KPiAr Cj4gKwo+ICAgICAgcmV0dXJuIHJjOwoKTm8gdHdvIHN1Y2Nlc3NpdmUgYmxhbmsgbGluZXMgcGxl YXNlLgoKPiAtLS0gYS94ZW4vYXJjaC94ODYvc21wLmMKPiArKysgYi94ZW4vYXJjaC94ODYvc21w LmMKPiBAQCAtMjUsNiArMjUsMzEgQEAKPiAgI2luY2x1ZGUgPGlycV92ZWN0b3JzLmg+Cj4gICNp bmNsdWRlIDxtYWNoX2FwaWMuaD4KPiAgCj4gK0RFRklORV9QRVJfQ1BVX1JFQURfTU9TVExZKGNw dW1hc2tfdmFyX3QsIHNjcmF0Y2hfY3B1bWFzayk7Cj4gKwo+ICsjaWZuZGVmIE5ERUJVRwo+ICtj cHVtYXNrX3QgKnNjcmF0Y2hfY3B1bWFzayhib29sIHVzZSkKPiArewo+ICsgICAgc3RhdGljIERF RklORV9QRVJfQ1BVKHZvaWQgKiwgc2NyYXRjaF9jcHVtYXNrX3VzZSk7CgpJJ2QgbWFrZSB0aGlz ICJjb25zdCB2b2lkICoiLCBidHcuCgo+ICsgICAgLyoKPiArICAgICAqIER1ZSB0byByZWVudHJh bmN5IHNjcmF0Y2ggY3B1bWFzayBjYW5ub3QgYmUgdXNlZCBpbiBJUlEsICNNQyBvciAjTk1JCj4g KyAgICAgKiBjb250ZXh0Lgo+ICsgICAgICovCj4gKyAgICBCVUdfT04oaW5faXJxKCkgfHwgaW5f bWNlX2hhbmRsZXIoKSB8fCBpbl9ubWlfaGFuZGxlcigpKTsKPiArCj4gKyAgICBpZiAoIHVzZSAm JiB1bmxpa2VseSh0aGlzX2NwdShzY3JhdGNoX2NwdW1hc2tfdXNlKSkgKQo+ICsgICAgewo+ICsg ICAgICAgIHByaW50aygic2NyYXRjaCBDUFUgbWFzayBhbHJlYWR5IGluIHVzZSBieSAlcHMgKCVw KVxuIiwKPiArICAgICAgICAgICAgICAgdGhpc19jcHUoc2NyYXRjaF9jcHVtYXNrX3VzZSksIHRo aXNfY3B1KHNjcmF0Y2hfY3B1bWFza191c2UpKTsKCldoeSB0aGUgcmF3ICVwIGFzIHdlbGw/IFdl IGRvbid0IGRvIHNvIGVsc2V3aGVyZSwgSSB0aGluay4gWWVzLAppdCdzIGRlYnVnZ2luZyBjb2Rl IG9ubHksIGJ1dCBJIHdvbmRlciBhbnl3YXkuCgpKYW4KCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVs QGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1h bi9saXN0aW5mby94ZW4tZGV2ZWw=