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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 34FB2C433EF for ; Sat, 23 Apr 2022 09:11:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3RqhmZnZ/ia+8ANHCVWXccvfOnUcyrclT7ie9pmK56w=; b=Cn3sfCLySXpS52AT4dRWyybrV1 SsgFAfOwTN2DMvMiqGEMbpwOaskpK4Sc6FsamxZCU+5BqmqQOtmCh2RMC3RPDWUDLBKRedktgZHaT 4y+aGBGFyPzJjPhRVVClm0YRjz9P+Yqzze4aip2iUYBbRcYKDVeNj8mL6ab91duJo5rKzC3Gn4qI1 5CqHq+3/Nt9Qb+Bkr8WCejWYnilxRZmf2atPzpYe3Poj63gzQyq6ubPdGxg4lCtSqXIBImBsyoU3Y PBVaADGUCSsWDuYI/pPGfwJfhPw+7Bvf3U90Sz/EsInpthY9ruTuyq5ZaBqgYcf9towihIKXu7GJX VhFkrkZg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1niBmU-003t6W-76; Sat, 23 Apr 2022 09:10:18 +0000 Received: from smtp-out1.suse.de ([195.135.220.28]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1niBmQ-003t4S-Qb for linux-arm-kernel@lists.infradead.org; Sat, 23 Apr 2022 09:10:16 +0000 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-out1.suse.de (Postfix) with ESMTPS id 9677D21107; Sat, 23 Apr 2022 09:10:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1650705008; 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=LZcBEsRf4H4TUD/LeIhDCJzVbvZV1c9YPF146laEEeM=; b=EEpJluR3Y0YyLokU3njES4XnOYjNIqnoThKrkYg7sXIUUJNopUdSaqmOAirKNKsFmvV4+Q uzN+EI5avd9cRQv3jAaLYlAInBKvtSDY2C3BSoGC5ZhSk7QgTsvR1OB8Gke6oGp69PhFQe EYeaQct9YW9eufYb76CXu7ccyzP6zLM= 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 1CAFE13A1B; Sat, 23 Apr 2022 09:10:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id TlqKBXDCY2JqPQAAMHmgww (envelope-from ); Sat, 23 Apr 2022 09:10:08 +0000 Message-ID: <8acfaa93-50ce-8dd9-49c6-cc328bb37569@suse.com> Date: Sat, 23 Apr 2022 11:10:07 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen Content-Language: en-US To: Oleksandr , Stefano Stabellini Cc: xen-devel@lists.xenproject.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Boris Ostrovsky , Julien Grall , Oleksandr Tyshchenko , "Michael S. Tsirkin" , Christoph Hellwig References: <1650646263-22047-1-git-send-email-olekstysh@gmail.com> <1650646263-22047-4-git-send-email-olekstysh@gmail.com> <3de2852b-0a94-fd1d-2eb6-fd818f33fc88@gmail.com> From: Juergen Gross In-Reply-To: <3de2852b-0a94-fd1d-2eb6-fd818f33fc88@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220423_021015_053981_9D2FBF23 X-CRM114-Status: GOOD ( 20.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7632197088638938394==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============7632197088638938394== Content-Language: en-US Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------o0kwwZd5WhI0vqwOQJ85oWOv" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------o0kwwZd5WhI0vqwOQJ85oWOv Content-Type: multipart/mixed; boundary="------------DtRNb3Oo0VGbLsVI53cPNLg0"; protected-headers="v1" From: Juergen Gross To: Oleksandr , Stefano Stabellini Cc: xen-devel@lists.xenproject.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Boris Ostrovsky , Julien Grall , Oleksandr Tyshchenko , "Michael S. Tsirkin" , Christoph Hellwig Message-ID: <8acfaa93-50ce-8dd9-49c6-cc328bb37569@suse.com> Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen References: <1650646263-22047-1-git-send-email-olekstysh@gmail.com> <1650646263-22047-4-git-send-email-olekstysh@gmail.com> <3de2852b-0a94-fd1d-2eb6-fd818f33fc88@gmail.com> In-Reply-To: <3de2852b-0a94-fd1d-2eb6-fd818f33fc88@gmail.com> --------------DtRNb3Oo0VGbLsVI53cPNLg0 Content-Type: multipart/mixed; boundary="------------GUEFUP6KMNbzPrgiWpDseGco" --------------GUEFUP6KMNbzPrgiWpDseGco Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMjMuMDQuMjIgMDk6MDUsIE9sZWtzYW5kciB3cm90ZToNCj4gDQo+IE9uIDIzLjA0LjIy IDAyOjAwLCBTdGVmYW5vIFN0YWJlbGxpbmkgd3JvdGU6DQo+IA0KPiBIZWxsbyBTdGVmYW5v DQo+IA0KPiANCj4+IE9uIEZyaSwgMjIgQXByIDIwMjIsIE9sZWtzYW5kciBUeXNoY2hlbmtv IHdyb3RlOg0KPj4+IEZyb206IEp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4NCj4+ Pg0KPj4+IEludHJvZHVjZSBYZW4gZ3JhbnQgRE1BLW1hcHBpbmcgbGF5ZXIgd2hpY2ggY29u dGFpbnMgc3BlY2lhbCBETUEtbWFwcGluZw0KPj4+IHJvdXRpbmVzIGZvciBwcm92aWRpbmcg Z3JhbnQgcmVmZXJlbmNlcyBhcyBETUEgYWRkcmVzc2VzIHRvIGJlIHVzZWQgYnkNCj4+PiBm cm9udGVuZHMgKGUuZy4gdmlydGlvKSBpbiBYZW4gZ3Vlc3RzLg0KPj4+DQo+Pj4gSW4gb3Jk ZXIgdG8gc3VwcG9ydCB2aXJ0aW8gaW4gWGVuIGd1ZXN0cyBhZGQgYSBjb25maWcgb3B0aW9u IFhFTl9WSVJUSU8NCj4+PiBlbmFibGluZyB0aGUgdXNlciB0byBzcGVjaWZ5IHdoZXRoZXIg aW4gYWxsIFhlbiBndWVzdHMgdmlydGlvIHNob3VsZA0KPj4+IGJlIGFibGUgdG8gYWNjZXNz IG1lbW9yeSB2aWEgWGVuIGdyYW50IG1hcHBpbmdzIG9ubHkgb24gdGhlIGhvc3Qgc2lkZS4N Cj4+Pg0KPj4+IEFzIHRoaXMgYWxzbyByZXF1aXJlcyBwcm92aWRpbmcgYXJjaF9oYXNfcmVz dHJpY3RlZF92aXJ0aW9fbWVtb3J5X2FjY2Vzcw0KPj4+IGltcGxlbWVudGF0aW9uLCBzd2l0 Y2ggZnJvbSBhIHB1cmUgc3R1YiB0byBhIHJlYWwgZnVuY3Rpb24gb24gQXJtDQo+Pj4gYW5k IGNvbWJpbmUgd2l0aCBleGlzdGluZyBpbXBsZW1lbnRhdGlvbiBmb3IgdGhlIFNFViBndWVz dHMgb24geDg2Lg0KPj4+DQo+Pj4gQWRkIHRoZSBuZWVkZWQgZnVuY3Rpb25hbGl0eSBieSBw cm92aWRpbmcgYSBzcGVjaWFsIHNldCBvZiBETUEgb3BzDQo+Pj4gaGFuZGxpbmcgdGhlIG5l ZWRlZCBncmFudCBvcGVyYXRpb25zIGZvciB0aGUgSS9PIHBhZ2VzLg0KPj4+DQo+Pj4gU2ln bmVkLW9mZi1ieTogSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29tPg0KPj4+IFNpZ25l ZC1vZmYtYnk6IE9sZWtzYW5kciBUeXNoY2hlbmtvIDxvbGVrc2FuZHJfdHlzaGNoZW5rb0Bl cGFtLmNvbT4NCj4+IFRoZXJlIGFyZSBhIGNvdXBsZSBvZiBtaW5vciB0aGluZ3MgdGhhdCBj aGVja3BhdGNoLnBsIHJlcG9ydHMsDQo+IA0KPiBUaGFuayB5b3UgZm9yIHBvaW50aW5nIHRo aXMgb3V0LCBteSBmYXVsdC4NCj4gDQo+IA0KPj4gwqAgYnV0IGFzaWRlDQo+PiBmcm9tIHRo b3NlIHRoZSBwYXRjaCBsb29rcyBmaW5lIHRvIG1lLg0KPiANCj4gZ29vZA0KPiANCj4gDQo+ IFRoZSBhdHRhY2hlZCBkaWZmIHRvIGJlIHNxdWFzaGVkIGZvciB0aGUgbmV3IHZlcnNpb24u IE9uZSB0aGluZyByZW1haW5zOg0KPiANCj4gY2hlY2twYXRjaC5wbCBzYXlzIHJlZ2FyZGlu ZyBkcml2ZXJzL3hlbi9ncmFudC1kbWEtb3BzLmM6DQo+IA0KPiBXQVJOSU5HOiBhZGRlZCwg bW92ZWQgb3IgZGVsZXRlZCBmaWxlKHMpLCBkb2VzIE1BSU5UQUlORVJTIG5lZWQgdXBkYXRp bmc/DQo+ICMxNTE6DQo+IG5ldyBmaWxlIG1vZGUgMTAwNjQ0DQo+IA0KPiANCj4gV2hpY2gs IEkgYXNzdW1lLCB0aGlzIGlzIG5vdCBhbiBpc3N1ZSBhcyBuZXcgZmlsZSBmYWxscyB1bmRl ciBYRU4gSFlQRVJWSVNPUiANCj4gSU5URVJGQUNFIG1haW50YWluZXJzaGlwPw0KDQpZZXMu DQoNCg0KSnVlcmdlbg0K --------------GUEFUP6KMNbzPrgiWpDseGco Content-Type: application/pgp-keys; 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