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 E5BB3C74A5B for ; Tue, 21 Mar 2023 06:01:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229683AbjCUGBE (ORCPT ); Tue, 21 Mar 2023 02:01:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229579AbjCUGBC (ORCPT ); Tue, 21 Mar 2023 02:01:02 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6ABA42FCD6 for ; Mon, 20 Mar 2023 23:01:00 -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 2AD4D1FD6A; Tue, 21 Mar 2023 06:00:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1679378459; 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=lNPtfVmBNWB46oNqjgMOOJq5xIWbXlcYeu2ufNq9LG8=; b=rSNVtPZwTVj3lSpTwvhLDnGaVPXlHTgw1QrJT/LWljIG2FO6AKr4yNjThG7s0zfp2EiAYa l/WpBbqbfF1WNfZLG/DAlrUE7HEHTY3/aqaj4fdFOqUXd66KOpe1EqjYwvaomGBlyfAXb9 6EYlsXbH7B8rRwZKibOZzcqevv5cDkQ= 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 E393E13440; Tue, 21 Mar 2023 06:00:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id jyaSNRpIGWTHTgAAMHmgww (envelope-from ); Tue, 21 Mar 2023 06:00:58 +0000 Message-ID: <01ec6ce2-7639-2e4f-3433-c77c29fa7984@suse.com> Date: Tue, 21 Mar 2023 07:00:58 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Content-Language: en-US To: Borislav Petkov Cc: linux-kernel@vger.kernel.org, x86@kernel.org, Thomas Gleixner , Ingo Molnar , Dave Hansen , "H. Peter Anvin" References: <20230306163425.8324-1-jgross@suse.com> <20230306163425.8324-4-jgross@suse.com> <20230320190543.GFZBiuh2lImP8LEW3D@fat_crate.local> From: Juergen Gross Subject: Re: [PATCH v4 03/12] x86/mtrr: support setting MTRR state for software defined MTRRs In-Reply-To: <20230320190543.GFZBiuh2lImP8LEW3D@fat_crate.local> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------G2tmpVhdR4cxQ8mo8zLez8bc" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------G2tmpVhdR4cxQ8mo8zLez8bc Content-Type: multipart/mixed; boundary="------------xUAyGdFcFXpYhoZ1Ywxi13aY"; protected-headers="v1" From: Juergen Gross To: Borislav Petkov Cc: linux-kernel@vger.kernel.org, x86@kernel.org, Thomas Gleixner , Ingo Molnar , Dave Hansen , "H. Peter Anvin" Message-ID: <01ec6ce2-7639-2e4f-3433-c77c29fa7984@suse.com> Subject: Re: [PATCH v4 03/12] x86/mtrr: support setting MTRR state for software defined MTRRs References: <20230306163425.8324-1-jgross@suse.com> <20230306163425.8324-4-jgross@suse.com> <20230320190543.GFZBiuh2lImP8LEW3D@fat_crate.local> In-Reply-To: <20230320190543.GFZBiuh2lImP8LEW3D@fat_crate.local> --------------xUAyGdFcFXpYhoZ1Ywxi13aY Content-Type: multipart/mixed; boundary="------------x3aUPNtfoUoXfSzqq1AXBE4A" --------------x3aUPNtfoUoXfSzqq1AXBE4A Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMjAuMDMuMjMgMjA6MDUsIEJvcmlzbGF2IFBldGtvdiB3cm90ZToNCj4gT24gTW9uLCBN YXIgMDYsIDIwMjMgYXQgMDU6MzQ6MTZQTSArMDEwMCwgSnVlcmdlbiBHcm9zcyB3cm90ZToN Cj4+ICsvKioNCj4+ICsgKiBtdHJyX292ZXJ3cml0ZV9zdGF0ZSAtIHNldCBzdGF0aWMgTVRS UiBzdGF0ZQ0KPj4gKyAqDQo+PiArICogVXNlZCB0byBzZXQgTVRSUiBzdGF0ZSB2aWEgZGlm ZmVyZW50IG1lYW5zIChlLmcuIHdpdGggZGF0YSBvYnRhaW5lZCBmcm9tDQo+PiArICogYSBo eXBlcnZpc29yKS4NCj4+ICsgKiBJcyBhbGxvd2VkIG9ubHkgZm9yIHNwZWNpYWwgY2FzZXMg d2hlbiBydW5uaW5nIHZpcnR1YWxpemVkLiBNdXN0IGJlIGNhbGxlZA0KPj4gKyAqIGZyb20g dGhlIHg4Nl9pbml0Lmh5cGVyLmluaXRfcGxhdGZvcm0oKSBob29rLiBYODZfRkVBVFVSRV9N VFJSIG11c3QgYmUgb2ZmLg0KPj4gKyAqLw0KPj4gK3ZvaWQgbXRycl9vdmVyd3JpdGVfc3Rh dGUoc3RydWN0IG10cnJfdmFyX3JhbmdlICp2YXIsIHVuc2lnbmVkIGludCBudW1fdmFyLA0K Pj4gKwkJCSAgbXRycl90eXBlIGRlZl90eXBlKQ0KPj4gK3sNCj4+ICsJdW5zaWduZWQgaW50 IGk7DQo+PiArDQo+PiArCWlmIChXQVJOX09OKG10cnJfc3RhdGVfc2V0IHx8DQo+PiArCQkg ICAgaHlwZXJ2aXNvcl9pc190eXBlKFg4Nl9IWVBFUl9OQVRJVkUpIHx8DQo+IA0KPiBXaHkg dGhhdCBjaGVjaz8NCg0KSSBndWVzcyB5b3UgYXJlIGFza2luZyBiZWNhdXNlIHRoZSBuZXh0 IHRlc3Qgc2VlbXMgdG8gY2F0Y2ggdGhlIHNhbWUgY2FzZT8NCg0KSSB0aGluayBpdCBkb2Vz bid0LCBlLmcuIGZvciB0aGUgY2FzZSBvZiB1bmtub3duIGh5cGVydmlzb3JzICh3aGljaCBz aG93cyB0aGF0DQpYODZfSFlQRVJfTkFUSVZFIGluIHRoZW9yeSBzaG91bGQgYmUgbmFtZWQg WDg2X0hZUEVSX05BVElWRV9PUl9VTktOT1dOLCBvciBpdA0Kc2hvdWxkIGJlIHNwbGl0IGlu dG8gWDg2X0hZUEVSX05BVElWRSBhbmQgWDg2X0hZUEVSX1VOS05PV04pLg0KDQo+IA0KPj4g KwkJICAgICFjcHVfZmVhdHVyZV9lbmFibGVkKFg4Nl9GRUFUVVJFX0hZUEVSVklTT1IpIHx8 DQo+PiArCQkgICAgKCFjY19wbGF0Zm9ybV9oYXMoQ0NfQVRUUl9HVUVTVF9TRVZfU05QKSAm Jg0KPj4gKwkJICAgICAhaHZfaXNfaXNvbGF0aW9uX3N1cHBvcnRlZCgpICYmDQo+PiArCQkg ICAgICFjcHVfZmVhdHVyZV9lbmFibGVkKFg4Nl9GRUFUVVJFX1hFTlBWKSAmJg0KPj4gKwkJ ICAgICAhY3B1X2ZlYXR1cmVfZW5hYmxlZChYODZfRkVBVFVSRV9URFhfR1VFU1QpKSkpDQo+ IA0KPiBUaGlzIGlzIHVucGFyc2VhYmxlLiBQbGVhc2Ugc3BsaXQgaXQgaW50byBzZXBhcmF0 ZSBjaGVja3M6DQo+IA0KPiAJaWYgKFdBUk5fT04obXRycl9zdGF0ZV9zZXQpKQ0KPiAJCXJl dHVybjsNCj4gDQo+IAlpZiAoV0FSTl9PTighY3B1X2ZlYXR1cmVfZW5hYmxlZChYODZfRkVB VFVSRV9IWVBFUlZJU09SKSkpDQo+IAkJcmV0dXJuOw0KPiANCj4gCS4uLg0KPiANCj4gYW5k IGFkZCBjb21tZW50cyBhYm92ZSBlYWNoIG9uZSB3aHkgd2UncmUgdGVzdGluZyB0aGlzLg0K DQpPa2F5Lg0KDQo+IA0KPiANCj4+ICsJCXJldHVybjsNCj4+ICsNCj4+ICsJLyogRGlzYWJs ZSBNVFJSIGluIG9yZGVyIHRvIGRpc2FibGUgTVRSUiBtb2RpZmljYXRpb25zLiAqLw0KPj4g KwlzZXR1cF9jbGVhcl9jcHVfY2FwKFg4Nl9GRUFUVVJFX01UUlIpOw0KPj4gKw0KPj4gKwlp ZiAodmFyKSB7DQo+PiArCQlpZiAobnVtX3ZhciA+IE1UUlJfTUFYX1ZBUl9SQU5HRVMpIHsN Cj4+ICsJCQlwcl93YXJuKCJUcnlpbmcgdG8gb3ZlcndyaXRlIE1UUlIgc3RhdGUgd2l0aCAl dSB2YXJpYWJsZSBlbnRyaWVzXG4iLA0KPj4gKwkJCQludW1fdmFyKTsNCj4+ICsJCQludW1f dmFyID0gTVRSUl9NQVhfVkFSX1JBTkdFUzsNCj4+ICsJCX0NCj4+ICsJCWZvciAoaSA9IDA7 IGkgPCBudW1fdmFyOyBpKyspDQo+PiArCQkJbXRycl9zdGF0ZS52YXJfcmFuZ2VzW2ldID0g dmFyW2ldOw0KPj4gKwkJbnVtX3Zhcl9yYW5nZXMgPSBudW1fdmFyOw0KPj4gKwl9DQo+PiAr DQo+PiArCW10cnJfc3RhdGUuZGVmX3R5cGUgPSBkZWZfdHlwZTsNCj4+ICsJbXRycl9zdGF0 ZS5lbmFibGVkIHw9IE1UUlJfU1RBVEVfTVRSUl9FTkFCTEVEOw0KPj4gKw0KPj4gKwltdHJy X3N0YXRlX3NldCA9IDE7DQo+PiArfQ0KPj4gKw0KPj4gICAvKioNCj4+ICAgICogbXRycl90 eXBlX2xvb2t1cCAtIGxvb2sgdXAgbWVtb3J5IHR5cGUgaW4gTVRSUg0KPj4gICAgKg0KPj4g ZGlmZiAtLWdpdCBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbXRyci9tdHJyLmMgYi9hcmNoL3g4 Ni9rZXJuZWwvY3B1L210cnIvbXRyci5jDQo+PiBpbmRleCA3NTk2ZWJlYWI5MjkuLjVmZTYy ZWUwMzYxYiAxMDA2NDQNCj4+IC0tLSBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbXRyci9tdHJy LmMNCj4+ICsrKyBiL2FyY2gveDg2L2tlcm5lbC9jcHUvbXRyci9tdHJyLmMNCj4+IEBAIC02 NjYsNiArNjY2LDE1IEBAIHZvaWQgX19pbml0IG10cnJfYnBfaW5pdCh2b2lkKQ0KPj4gICAJ Y29uc3QgY2hhciAqd2h5ID0gIihub3QgYXZhaWxhYmxlKSI7DQo+PiAgIAl1bnNpZ25lZCBp bnQgcGh5c19hZGRyOw0KPj4gICANCj4+ICsJaWYgKG10cnJfc3RhdGUuZW5hYmxlZCkgew0K PiANCj4gSSdtIGd1ZXNzaW5nIHRoZSBwcm9wZXIgZGV0ZWN0aW9uIG9mIHRoYXQgd2VpcmQg c3RhdGUgc2hvdWxkIGJlOg0KPiANCj4gCS8qDQo+IAkgKiBDaGVjayBmb3IgdGhlIHNvZnR3 YXJlIG92ZXJ3cml0ZSBvZiBNVFJSIHN0YXRlLCBvbmx5IGZvciBnZW5lcmljIGNhc2UuDQo+ IAkgKiBTZWUgbXRycl9vdmVyd3JpdGVfc3RhdGUoKS4NCj4gCSAqLw0KPiAJaWYgKCFjcHVf ZmVhdHVyZV9lbmFibGVkKFg4Nl9GRUFUVVJFX01UUlIpICYmDQo+IAkgICAgbXRycl9zdGF0 ZS5lbmFibGVkKSB7DQo+IAkJLi4uDQoNCkl0IGJhc2ljYWxseSBkb2Vzbid0IG1hdHRlci4N Cg0KVGhlIG9ubHkgcG9zc2liaWxpdHkgb2YgbXRycl9zdGF0ZS5lbmFibGVkIHRvIGJlIHNl dCBhdCB0aGlzIHBvaW50IGlzIGENCnByZXZpb3VzIGNhbGwgb2YgbXRycl9vdmVyd3JpdGVf c3RhdGUoKS4NCg0KDQpKdWVyZ2VuDQo= --------------x3aUPNtfoUoXfSzqq1AXBE4A Content-Type: application/pgp-keys; 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