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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA018C433EF for ; Mon, 2 May 2022 12:43:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1385072AbiEBMq2 (ORCPT ); Mon, 2 May 2022 08:46:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1385060AbiEBMqY (ORCPT ); Mon, 2 May 2022 08:46:24 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 982CF13EA8 for ; Mon, 2 May 2022 05:42:52 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 49F2C1F38D; Mon, 2 May 2022 12:42:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1651495371; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=xgm4ncx470cGggZLgVgaWjDmGH77PXuStFOsEvpnKuA=; b=GesygcDIQ6YbGF8QBPFDxalMykXY+FjBGWk3ktEBvjeCFM4+0p2hnni6kuVDa/eyEdvwzS Ha+bTdqQkymGS7IYXjmxJe01IMgxTFem4ahcUeE+fYrSSoHGtyEgQfRknuFsx9ScjzN94H ji83OdQQFw7pWN8/MqkIj3/gVa5YO1Q= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id DC691133E5; Mon, 2 May 2022 12:42:50 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id GjU6NMrRb2K8fwAAMHmgww (envelope-from ); Mon, 02 May 2022 12:42:50 +0000 Message-ID: <6c0dd7c7-593b-d8cf-347b-3d32310fcc11@suse.com> Date: Mon, 2 May 2022 14:42:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Content-Language: en-US To: Lai Jiangshan , Borislav Petkov Cc: LKML , Peter Zijlstra , Josh Poimboeuf , Andy Lutomirski , Thomas Gleixner , X86 ML , Lai Jiangshan , Ingo Molnar , Dave Hansen , "H. Peter Anvin" References: <20220421141055.316239-1-jiangshanlai@gmail.com> <20220421141055.316239-4-jiangshanlai@gmail.com> From: Juergen Gross Subject: Re: [PATCH V6 3/8] x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry() In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------1JwBUxJAdhW3J26I4MnuZyS9" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------1JwBUxJAdhW3J26I4MnuZyS9 Content-Type: multipart/mixed; boundary="------------YqP1iwCRBUTIZeXz0804kjpB"; protected-headers="v1" From: Juergen Gross To: Lai Jiangshan , Borislav Petkov Cc: LKML , Peter Zijlstra , Josh Poimboeuf , Andy Lutomirski , Thomas Gleixner , X86 ML , Lai Jiangshan , Ingo Molnar , Dave Hansen , "H. Peter Anvin" Message-ID: <6c0dd7c7-593b-d8cf-347b-3d32310fcc11@suse.com> Subject: Re: [PATCH V6 3/8] x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry() References: <20220421141055.316239-1-jiangshanlai@gmail.com> <20220421141055.316239-4-jiangshanlai@gmail.com> In-Reply-To: --------------YqP1iwCRBUTIZeXz0804kjpB Content-Type: multipart/mixed; boundary="------------dcDkuqcQuUZZxGvU0KNv8qYn" --------------dcDkuqcQuUZZxGvU0KNv8qYn Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMjguMDQuMjIgMDI6MzMsIExhaSBKaWFuZ3NoYW4gd3JvdGU6DQo+IE9uIFRodSwgQXBy IDI4LCAyMDIyIGF0IDE6NDUgQU0gQm9yaXNsYXYgUGV0a292IDxicEBhbGllbjguZGU+IHdy b3RlOg0KPj4NCj4+IE9uIFRodSwgQXByIDIxLCAyMDIyIGF0IDEwOjEwOjUwUE0gKzA4MDAs IExhaSBKaWFuZ3NoYW4gd3JvdGU6DQo+Pj4gRnJvbTogTGFpIEppYW5nc2hhbiA8amlhbmdz aGFuLmxqc0BhbnRncm91cC5jb20+DQo+Pj4NCj4+PiBUaGUgbWFjcm8gaWR0ZW50cnkgY2Fs bHMgZXJyb3JfZW50cnkoKSB1bmNvbmRpdGlvbmFsbHkgZXZlbiBvbiBYRU5QVi4NCj4+PiBC dXQgdGhlIGNvZGUgWEVOUFYgbmVlZHMgaW4gZXJyb3JfZW50cnkoKSBpcyBQVVNIX0FORF9D TEVBUl9SRUdTIG9ubHkuDQo+Pj4gQW5kIGVycm9yX2VudHJ5KCkgYWxzbyBjYWxscyBzeW5j X3JlZ3MoKSB3aGljaCBoYXMgdG8gZGVhbCB3aXRoIHRoZQ0KPj4+IGNhc2Ugb2YgWEVOUFYg dmlhIGFuIGV4dHJhIGJyYW5jaCBzbyB0aGF0IGl0IGRvZXNuJ3QgY29weSB0aGUgcHRfcmVn cy4NCj4+DQo+PiBXaGF0IGV4dHJhIGJyYW5jaD8NCj4+DQo+PiBEbyB5b3UgbWVhbiB0aGUN Cj4+DQo+PiAgICAgICAgICBpZiAocmVncyAhPSBlcmVncykNCj4+DQo+PiB0ZXN0IGluIHN5 bmNfcmVncygpPw0KPiANCj4gSGVsbG8sIEJvcmlzbGF2DQo+IA0KPiBZZXMuDQo+IA0KPj4N Cj4+IEknbSBjb25mdXNlZC4gQXJlIHlvdSwgcGVyIGNoYW5jZSwgYWltaW5nIHRvIG9wdGlt aXplIFhFTlBWIGhlcmUgb3INCj4+IHdoYXQncyB1cD8NCj4gDQo+IA0KPiBUaGUgYnJhbmNo IGluIHN5bmNfcmVncygpIGNhbiBiZSBvcHRpbWl6ZWQgb3V0IGZvciB0aGUgbm9uLVhFTlBW IGNhc2UNCj4gc2luY2UgWEVOUFYgZG9lc24ndCBjYWxsIHN5bmNfcmVncygpIGFmdGVyIHBh dGNoNSB3aGljaCBtYWtlcyBYRU5QVg0KPiBub3QgY2FsbCBlcnJvcl9lbnRyeSgpLg0KPiAN Cj4gVGhlIGFpbSBvZiB0aGlzIHBhdGNoIGFuZCBtb3N0IG9mIHRoZSBwYXRjaHNldCBpcyB0 byBtYWtlDQo+IGVycm9yX2VudHJ5KCkgYmUgYWJsZSB0byBiZSBjb252ZXJ0ZWQgdG8gQy4g IEFuZCBYRU5QViBjYXNlcyBjYW4NCj4gYWxzbyBiZSBvcHRpbWl6ZWQgaW4gdGhlIHBhdGNo c2V0IGFsdGhvdWdoIGl0IGlzIG5vdCB0aGUgbWFqb3IgbWFpbi4NCj4gDQo+Pg0KPj4+IEFu ZCBQVVNIX0FORF9DTEVBUl9SRUdTIGluIGVycm9yX2VudHJ5KCkgbWFrZXMgdGhlIHN0YWNr IG5vdCByZXR1cm4gdG8NCj4+PiBpdHMgb3JpZ2luYWwgcGxhY2Ugd2hlbiB0aGUgZnVuY3Rp b24gcmV0dXJucywgd2hpY2ggbWVhbnMgaXQgaXMgbm90DQo+Pj4gcG9zc2libGUgdG8gY29u dmVydCBpdCB0byBhIEMgZnVuY3Rpb24uDQo+Pj4NCj4+PiBNb3ZlIFBVU0hfQU5EX0NMRUFS X1JFR1Mgb3V0IG9mIGVycm9yX2VudHJ5KCksIGFkZCBhIGZ1bmN0aW9uIHRvIHdyYXANCj4+ PiBQVVNIX0FORF9DTEVBUl9SRUdTIGFuZCBjYWxsIGl0IGJlZm9yZSBlcnJvcl9lbnRyeSgp Lg0KPj4+DQo+Pj4gVGhlIG5ldyBmdW5jdGlvbiBjYWxsIGFkZHMgdHdvIGluc3RydWN0aW9u cyAoQ0FMTCBhbmQgUkVUKSBmb3IgZXZlcnkNCj4+PiBpbnRlcnJ1cHQgb3IgZXhjZXB0aW9u Lg0KPj4NCj4+IE5vdCBvbmx5IC0gaXQgcHVzaGVzIGFsbCB0aGUgcmVncyBpbiBQVVNIX0FO RF9DTEVBUl9SRUdTIHRvby4gSSBkb24ndA0KPj4gdW5kZXJzdGFuZCB3aHkgdGhhdCBtYXR0 ZXJzIGhlcmU/IEl0IHdhcyBkb25lIGluIGVycm9yX2VudHJ5IGFueXdheS4NCj4+DQo+IA0K PiBDb21wYXJlZCB0byB0aGUgb3JpZ2luYWwgY29kZSwgYWRkaW5nIHRoZSBuZXcgZnVuY3Rp b24gY2FsbCBhZGRzIHR3bw0KPiBpbnN0cnVjdGlvbnMgKENBTEwgYW5kIFJFVCkgZm9yIGV2 ZXJ5IGludGVycnVwdCBvciBleGNlcHRpb24uDQo+IA0KPiBQVVNIX0FORF9DTEVBUl9SRUdT IGlzIG5vdCBleHRyYSBpbnN0cnVjdGlvbnMgYWRkZWQgaGVyZS4NCj4gDQo+IFNpbmNlIHRo aXMgcGF0Y2ggYWRkcyBleHRyYSBvdmVyaGVhZCAoQ0FMTCBhbmQgUkVUKSwgdGhlIGNoYW5n ZWxvZw0KPiBoYXMgdG8gZXhwbGFpbiB3aHkgaXQgaXMgd29ydGggaXQgbm90IGp1c3QgZm9y IGNvbnZlcnRpbmcgQVNNIHRvIEMuDQo+IA0KPiBUaGUgZXhwbGFuYXRpb24gaW4gdGhlIGNo YW5nZWxvZyBpcyB0aGF0IGl0IGNhbiBiZSBvZmZzZXR0ZWQgYnkgbGF0ZXINCj4gcmVkdWNl ZCBvdmVyaGVhZC4NCg0KSSB0aGluayB5b3UgY291bGQgYXZvaWQgdGhlIGV4dHJhIGNhbGwv cmV0IGJ5IGRvaW5nIHNvbWV0aGluZyBsaWtlOg0KDQpTWU1fQ09ERV9TVEFSVF9MT0NBTChl cnJvcl9leGl0X3B1c2hfYW5kX3NhdmUpDQoJVU5XSU5EX0hJTlRfRlVOQw0KCVBVU0hfQU5E X0NMRUFSX1JFR1Mgc2F2ZV9yZXQ9MQ0KCUVOQ09ERV9GUkFNRV9QT0lOVEVSIDgNCglqbXAg ZXJyb3JfZXhpdA0KU1lNX0NPREVfRU5EKGVycm9yX2V4aXRfcHVzaF9hbmRfc2F2ZSkNCg0K Li4uIGFuZCB1c2UgdGhpcyBpbnN0ZWFkIG9mIHBhdGNoIDU6DQoNCglBTFRFUk5BVElWRSAi Y2FsbCBlcnJvcl9lbnRyeV9wdXNoX2FuZF9zYXZlOyBtb3ZxICVyYXgsICVyc3AiLCBcDQoJ CSJjYWxsIHB1c2hfYW5kX2NsZWFyX3JlZ3MiLCBYODZfRkVBVFVSRV9YRU5QVg0KDQoNCkp1 ZXJnZW4NCg0K --------------dcDkuqcQuUZZxGvU0KNv8qYn Content-Type: application/pgp-keys; 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