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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 1i3bN1-00019D-7B; Fri, 30 Aug 2019 07:30:55 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i3bN0-000198-2X for xen-devel@lists.xenproject.org; Fri, 30 Aug 2019 07:30:54 +0000 X-Inumbo-ID: 18e5ad28-caf8-11e9-ae7b-12813bfff9fa Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 18e5ad28-caf8-11e9-ae7b-12813bfff9fa; Fri, 30 Aug 2019 07:30:53 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 64AEBB03B; Fri, 30 Aug 2019 07:30:52 +0000 (UTC) To: Chao Gao References: <1566177928-19114-1-git-send-email-chao.gao@intel.com> <1566177928-19114-16-git-send-email-chao.gao@intel.com> <20190830063326.GC31905@gao-cwp> From: Jan Beulich Message-ID: Date: Fri, 30 Aug 2019 09:30:54 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190830063326.GC31905@gao-cwp> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v9 15/15] microcode: block #NMI handling when loading an ucode 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: Andrew Cooper , xen-devel@lists.xenproject.org, Ashok Raj , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Archived-At: List-Archive: T24gMzAuMDguMjAxOSAwODozMywgQ2hhbyBHYW8gd3JvdGU6Cj4gT24gVGh1LCBBdWcgMjksIDIw MTkgYXQgMDI6MjI6NDdQTSArMDIwMCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+IE9uIDE5LjA4LjIw MTkgMDM6MjUsIENoYW8gR2FvIHdyb3RlOgo+Pj4gQEAgLTQ4MSwxMiArNDc4LDI4IEBAIHN0YXRp YyBpbnQgZG9fbWljcm9jb2RlX3VwZGF0ZSh2b2lkICpwYXRjaCkKPj4+ICAgICAgcmV0dXJuIHJl dDsKPj4+ICB9Cj4+PiAgCj4+PiArc3RhdGljIGludCBtaWNyb2NvZGVfbm1pX2NhbGxiYWNrKGNv bnN0IHN0cnVjdCBjcHVfdXNlcl9yZWdzICpyZWdzLCBpbnQgY3B1KQo+Pj4gK3sKPj4+ICsgICAg LyogVGhlIGZpcnN0IHRocmVhZCBvZiBhIGNvcmUgaXMgdG8gbG9hZCBhbiB1cGRhdGUuIERvbid0 IGJsb2NrIGl0LiAqLwo+Pj4gKyAgICBpZiAoIGNwdSA9PSBjcHVtYXNrX2ZpcnN0KHBlcl9jcHUo Y3B1X3NpYmxpbmdfbWFzaywgY3B1KSkgfHwKPj4+ICsgICAgICAgICBsb2FkaW5nX3N0YXRlICE9 IExPQURJTkdfQ0FMTElOICkKPj4+ICsgICAgICAgIHJldHVybiAwOwo+Pj4gKwo+Pj4gKyAgICBj cHVtYXNrX3NldF9jcHUoY3B1LCAmY3B1X2NhbGxpbl9tYXApOwo+Pj4gKwo+Pj4gKyAgICB3aGls ZSAoIGxvYWRpbmdfc3RhdGUgIT0gTE9BRElOR19FWElUICkKPj4+ICsgICAgICAgIGNwdV9yZWxh eCgpOwo+Pj4gKwo+Pj4gKyAgICByZXR1cm4gMDsKPj4+ICt9Cj4+Cj4+IEJ5IHJldHVybmluZyAw IHlvdSB0ZWxsIGRvX25taSgpIHRvIGNvbnRpbnVlIHByb2Nlc3NpbmcgdGhlIE5NSS4KPj4gU2lu Y2UgeW91IGNhbid0IHRlbGwgd2hldGhlciBhIG5vbi1JUEkgTk1JIGhhcyBzdXJmYWNlZCBhdCBh Ym91dAo+PiB0aGUgc2FtZSB0aW1lIHRoaXMgaXMgZ2VuZXJhbGx5IHRoZSByaWdodCB0aGluZyBp bW8sIGJ1dCBob3cgZG8KPj4geW91IHByZXZlbnQgdW5rbm93bl9ubWlfZXJyb3IoKSBmcm9tIGdl dHRpbmcgZW50ZXJlZCB3aGVuIGRvX25taSgpCj4+IGVuZHMgdXAgc2V0dGluZyBoYW5kbGVfdW5r bm93biB0byB0cnVlPyAoVGhlIHF1ZXN0aW9uIGlzIG1vc3RseQo+PiByaGV0b3JpY2FsLCBidXQg dGhlcmUncyBhIGRpc2Nvbm5lY3QgYmV0d2VlbiBkb19ubWkoKSBjaGVja2luZwo+PiAiY3B1ID09 IDAiIGFuZCB0aGUgY29udHJvbCB0aHJlYWQgcnVubmluZyBvbgo+PiBjcHVtYXNrX2ZpcnN0KCZj cHVfb25saW5lX21hcCksIGkuZS4geW91IGludHJvZHVjZSBhIHdlbGwgaGlkZGVuCj4+IGRlcGVu ZGVuY3kgb24gQ1BVIDAgbmV2ZXIgZ29pbmcgb2ZmbGluZS4gSU9XIG15IHJlcXVlc3QgaXMgdG8g YXQKPj4gbGVhc3QgbWFrZSB0aGlzIGxlc3Mgd2VsbCBoaWRkZW4sIHN1Y2ggdGhhdCBpdCBjYW4g YmUgbm90aWNlZCBpZgo+PiBhbmQgd2hlbiBzb21lb25lIGVuZGVhdm9ycyB0byByZW1vdmUgc2Fp ZCBsaW1pdGF0aW9uLikKPiAKPiBTZWVtcyB0aGUgaXNzdWUgaXMgdGhhdCB3ZSBjb3VsZG4ndCBz ZW5kIElQSSBOTUkgdG8gQlNQLCBvdGhlcndpc2UKPiB1bmtub3duX25taV9lcnJvcigpIHdvdWxk IGJlIHRyaWdnZXIuIEFuZCBsb2FkaW5nIHVjb2RlIGFmdGVyCj4gcmVuZGV6dm91c2luZyBhbGwg Q1BVcyBpbiBOTUkgaGFuZGxlciBleHBlY3RzIGFsbCBDUFVzIHRvIHJlY2VpdmUgSVBJCj4gTk1J LiBTbyB0aGlzIGFwcHJvYWNoIGFsd2F5cyBoYXMgc3VjaCBpc3N1ZS4KCk5vdCByZWFsbHksIEkg ZG9uJ3QgdGhpbms6IElmIGJvdGggc2lkZXMgYWdyZWVkIChleHBsaWNpdGx5ISkgb24gd2hpY2gK Q1BVIGxlYWRzIHRoaXMgZWZmb3J0LCB0aGVuIGl0IHdvdWxkIGJlIGNsZWFyIHRoYXQgdGhlIG9u ZSBDUFUKaGFuZGxpbmcgTk1JcyBjb21pbmcgZnJvbSB0aGUgcGxhdGZvcm0gc2hvdWxkIG5vdCBi ZSBzZW50IGFuIE5NSSwgYW5kCmhlbmNlIGl0IHNob3VsZCBiZSB0aGlzIG9uZSB0byBsZWFkIHRo ZSBlZmZvcnQuIEZBT0QgLSBteSByZW1hcmsgcmVhbGx5CndhcyBiZWNhdXNlIG9mIHRoZSBuZXcg aGlkZGVuKCEpIGRlcGVuZGVuY3kgeW91IGludHJvZHVjZSBvbiBDUFUgMAphbHdheXMgYmVpbmcg dGhpcyAic3BlY2lhbCIgQ1BVLiBJIGRvbid0IGV4cGVjdCB5b3UgdG8gY2hhbmdlIHRoZSBjb2Rl LApidXQgSSdkIGxpa2UgeW91IHRvIG1ha2UgdGhlIGN1cnJlbnRseSBoaWRkZW4gZGVwZW5kZW5j eSBleHBsaWNpdC4KCj4gQ29uc2lkZXJpbmcgc2VsZl9ubWkgaXMgY2FsbGVkIGF0IGFub3RoZXIg cGxhY2UsIGNvdWxkIHdlIHByb3ZpZGUgYQo+IHdheSB0byB0ZW1wb3JhcmlseSBzdXBwcmVzcyBv ciAoZm9yY2UpIGlnbm9yZSB1bmtub3duIG5taSBlcnJvcj8KCkknbSBhZnJhaWQgYW55IGF0dGVt cHQgYXQgZG9pbmcgc28gd2lsbCBsZWF2ZSByb29tIGZvciBtaXNzaW5nIGFuCmFjdHVhbCAocGxh dGZvcm0pIE5NSS4KCkphbgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVj dC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1k ZXZlbA==