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 180B5C433EF for ; Mon, 25 Apr 2022 21:28:09 +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-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=xnMawKGXpXr0CbHXMHEsQRd1xWdhbecTiESgbVEr0nY=; b=KXboCrnUjNEqPg 3eYNIUGPnlMnNdDd70FZs9/Fb6kGYKuqgxADAB/y8Klngm36naVYmTJOA3iFKyGlN2pEypk8tKE5M bXazeBIM5pFJueJZFwETSuISQ/96mRqjhmzvaS4E0DReWm+H4MxSwNPqe/dxYIepa/GNYp6IphGnz CABCNbH54Nj7jhO+xqxzXSsTaSLqS2D9RPFrlDXHAcnIqKaXt6Vex7pK3tnB0lmYQM+sjaYWYjrSf oH4EqTMMmsVLNgAUrxPhstveFvMeFhnPD5teeXd408Q9e/7z+SXXMglMd05EiDOxDj6xlwv6W1+Ov E4eTMlC5sl3UNtEOo/ig==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nj6Dp-00BUGN-7W; Mon, 25 Apr 2022 21:26:17 +0000 Received: from mail.skyhub.de ([2a01:4f8:190:11c2::b:1457]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nj6Dl-00BUEx-7h for linux-arm-kernel@lists.infradead.org; Mon, 25 Apr 2022 21:26:16 +0000 Received: from zn.tnic (p5de8eeb4.dip0.t-ipconnect.de [93.232.238.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id B81DA1EC04A6; Mon, 25 Apr 2022 23:26:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1650921961; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VzCRn9yN2ByyCFR5QKv9+K8B8VcoQwcA3ZVz2Ifi7JQ=; b=fNnh8YiUMApB0I9iM+V6r0nvmh8FA7oNdMa5U7S15/LCpqbI1/jM6tKwfyZ0aDGbo5ZAAv UISb+73NpqVJqWCi+Fa1hLJKqxhd+c42n4JjVcHL1lptzDXi9IsAxaLj9BDartlz8vh+99 YmQB5O8tl20QGO/Fbc7aZfQyJMnzDYU= Date: Mon, 25 Apr 2022 23:25:57 +0200 From: Borislav Petkov To: Oleksandr Cc: Juergen Gross , Christoph Hellwig , Boris Ostrovsky , Stefano Stabellini , 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 , "H. Peter Anvin" , Julien Grall , Oleksandr Tyshchenko , "Michael S. Tsirkin" , Tom Lendacky Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen Message-ID: References: <1650646263-22047-1-git-send-email-olekstysh@gmail.com> <1650646263-22047-4-git-send-email-olekstysh@gmail.com> <6c5042fe-dafc-eb4f-c1fa-03b0faf252de@gmail.com> <147f68f6-7d67-1884-bd14-5040639b3396@suse.com> <67c7460a-3001-35a6-8e5b-f367270b257a@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <67c7460a-3001-35a6-8e5b-f367270b257a@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220425_142614_593142_7FCCD735 X-CRM114-Status: GOOD ( 15.46 ) 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: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBBcHIgMjUsIDIwMjIgYXQgMTE6Mzg6MzZQTSArMDMwMCwgT2xla3NhbmRyIHdyb3Rl Ogo+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L2NjX3BsYXRmb3JtLmggYi9pbmNsdWRlL2xp bnV4L2NjX3BsYXRmb3JtLmgKPiBpbmRleCBlZmQ4MjA1Li5kMDZiYzdhIDEwMDY0NAo+IC0tLSBh L2luY2x1ZGUvbGludXgvY2NfcGxhdGZvcm0uaAo+ICsrKyBiL2luY2x1ZGUvbGludXgvY2NfcGxh dGZvcm0uaAo+IEBAIC03Miw2ICs3MiwxOSBAQCBlbnVtIGNjX2F0dHIgewo+IMKgwqDCoMKgwqDC oMKgwqAgKiBFeGFtcGxlcyBpbmNsdWRlIFREWCBndWVzdCAmIFNFVi4KPiDCoMKgwqDCoMKgwqDC oMKgICovCj4gwqDCoMKgwqDCoMKgwqAgQ0NfQVRUUl9HVUVTVF9VTlJPTExfU1RSSU5HX0lPLAo+ ICsKPiArwqDCoMKgwqDCoMKgIC8qKgo+ICvCoMKgwqDCoMKgwqDCoCAqIEBDQ19BVFRSX0dVRVNU X01FTV9BQ0NFU1NfUkVTVFJJQ1RFRDogUmVzdHJpY3RlZCBtZW1vcnkgYWNjZXNzIHRvCj4gK8Kg wqDCoMKgwqDCoMKgICrCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIEd1ZXN0IG1lbW9yeSBpcyBhY3RpdmUK PiArwqDCoMKgwqDCoMKgwqAgKgo+ICvCoMKgwqDCoMKgwqDCoCAqIFRoZSBwbGF0Zm9ybS9PUyBp cyBydW5uaW5nIGFzIGEgZ3Vlc3QvdmlydHVhbCBtYWNoaW5lIGFuZCB1c2VzCj4gK8KgwqDCoMKg wqDCoMKgICogdGhlIHJlc3RyaWN0ZWQgYWNjZXNzIHRvIGl0cyBtZW1vcnkuIFRoaXMgYXR0cmli dXRlIGlzIHNldCBpZgo+IGVpdGhlcgo+ICvCoMKgwqDCoMKgwqDCoCAqIEd1ZXN0IG1lbW9yeSBl bmNyeXB0aW9uIG9yIHJlc3RyaWN0ZWQgbWVtb3J5IGFjY2VzcyB1c2luZyBYZW4KPiBncmFudAo+ ICvCoMKgwqDCoMKgwqDCoCAqIG1hcHBpbmdzIGlzIGFjdGl2ZS4KPiArwqDCoMKgwqDCoMKgwqAg Kgo+ICvCoMKgwqDCoMKgwqDCoCAqIEV4YW1wbGVzIGluY2x1ZGUgWGVuIGd1ZXN0IGFuZCBTRVYu CgpXYWl0LCB3aGFhYXQ/CgpUaGUgY2NfcGxhdGZvcm0qIHN0dWZmIGlzIGZvciAqY29uZmlkZW50 aWFsIGNvbXB1dGluZyogZ3Vlc3RzIHRvIGNoZWNrCmRpZmZlcmVudCBwbGF0Zm9ybSBhc3BlY3Rz LgoKRnJvbSBxdWlja2x5IHNraW1taW5nIG92ZXIgdGhpcywgdGhpcyBsb29rcyBsaWtlIGEgbWlz dXNlIHRvIG1lLgoKV2h5IGNhbid0IHlvdSBxdWVyeSB0aGlzIGZyb20gdGhlIGh5cGVydmlzb3Ig anVzdCBsaWtlIHlvdSBkbyB5b3VyIG90aGVyCnF1ZXJ5aW5nIGFib3V0IHdoYXQgaXMgc3VwcG9y dGVkLCBldGM/IEh5cGVyY2FsbHMsIENQVUlELCB3aGF0ZXZlci4uLgoKLS0gClJlZ2FyZHMvR3J1 c3MsCiAgICBCb3Jpcy4KCmh0dHBzOi8vcGVvcGxlLmtlcm5lbC5vcmcvdGdseC9ub3Rlcy1hYm91 dC1uZXRpcXVldHRlCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3Rz LmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5m by9saW51eC1hcm0ta2VybmVsCg==