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 C6631C433EF for ; Sat, 23 Apr 2022 15:26:59 +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: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Oc23BSmgsPcHG/XM0S15HWIhLs97q8d9a1WI4686FS0=; b=SdkWBT9RKQHbRbF7g2PXz8YUO1 jtilg3C5f94HCRomI9/V9JTkHWEWcrxPK7QYir/C805y2muPx6ICzD2wmY54sqcP69WmAIs7acSn2 QJk1VpK6N2iGbxoH4WGD1zFtlw9HnpH4YIYibcuub6v9NUT60qgHIXP/wuNXodA2ES61RV/S3t12C BQ9Bb9Oyzuy27cjWW9O5hakunFep0t9aNSgBk7P9BpH+UY5p7CslPgsJUls3ptob1S/Zj62gqdyIH tYCyBYz+VCAWKFq6hBe+GudAiS3dGpVrE60FysRyW1AlBcA0zq9K+6KtW7Gg2hZey/eNqmNJ53nxX yohpAKTw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1niHe0-004XII-Dj; Sat, 23 Apr 2022 15:25:56 +0000 Received: from mail-lf1-x130.google.com ([2a00:1450:4864:20::130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1niHdg-004X4l-CO for linux-arm-kernel@lists.infradead.org; Sat, 23 Apr 2022 15:25:37 +0000 Received: by mail-lf1-x130.google.com with SMTP id x33so19115991lfu.1 for ; Sat, 23 Apr 2022 08:25:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=uPFaFyXz+EDuxvlVGUNcApp1IgYD33kJxyk7ho7JgsI=; b=qAX7YMz/JVxRQSD3fqnQXDX9zVCZWMtAGJZf1JQG6BC5yFq+jBJs0Bmw87DF2eoCmq eB2jJ/jLcplC0r+dgKvQHASQCXlpPx9qQUvjOIRwmext+2BEI0HSQFsH+wCaKaT+dSrx pM78v3UdfvFh6ZqEaYYirFC4NVvxB3UYNKeyJAuxTPBGueHYmNO1YXcqFHfXfqC5kFeK XCKNDjDTj1YGjwgrnHyOM3osVRjWrQAzoW4HO1CVCAsEzUy/NId/1IIJ6vn2OTwihsxL HbGqWv2cHnxee5QlZ8keGC34Wlv1JJF3pXORff0x5PdSPBVpKxUSGjq/0Pa0qxEffFfF oZZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=uPFaFyXz+EDuxvlVGUNcApp1IgYD33kJxyk7ho7JgsI=; b=BK9p8RyxdkbzZ5dpKrVXGFaYxIAfj9obcmDxLa8xjmm144r6cKg8XyEcjE5+EsO9Ls frwuCIRR5zGF1TjgW8Tv5Q32+45saHhHJ6K6Ig9BvUyyrunCCBS6MTkbrd3K7CQtzIo4 2xXOlM507L8IBuzrjui0aTRtVtUct8W3nUOnb8YtjrS7anuL4cxOvG2w5WOUBOM9y7l4 f9rFFa1WAbi28Jb0WG80ccQThhptJz8tcae8T3qW9nLMH//udKO5/pds3YacoshaylsS gkj86uCKHe8F29qmf3i+1PqhakZNBGERlXySxwjFqaoWyteW8LUzRL4zy6jGlrxJNzBe f3fQ== X-Gm-Message-State: AOAM533K4Vm3Idci3kqVHi1bXdeeiRF2XQmIqWzOW6pSt8iRDUPA+tlL SnHFIpGQDwM0ruiNhkbNDvg= X-Google-Smtp-Source: ABdhPJwZNl8ZX/SsU1gM9f+mVYW4LB3X8j+kRC6d+voW45tPtkkQcLAFY9FBtTyQGpxCpCgIZRyrOQ== X-Received: by 2002:a19:dc0f:0:b0:439:702c:d83b with SMTP id t15-20020a19dc0f000000b00439702cd83bmr6906996lfg.192.1650727534046; Sat, 23 Apr 2022 08:25:34 -0700 (PDT) Received: from [192.168.1.7] ([212.22.223.21]) by smtp.gmail.com with ESMTPSA id w23-20020a197b17000000b0046d1729e7d9sm651824lfc.294.2022.04.23.08.25.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 23 Apr 2022 08:25:33 -0700 (PDT) Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen To: Juergen Gross Cc: 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 , 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> <8acfaa93-50ce-8dd9-49c6-cc328bb37569@suse.com> From: Oleksandr Message-ID: Date: Sat, 23 Apr 2022 18:25:30 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <8acfaa93-50ce-8dd9-49c6-cc328bb37569@suse.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220423_082536_460220_102F57F2 X-CRM114-Status: GOOD ( 18.45 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIzLjA0LjIyIDEyOjEwLCBKdWVyZ2VuIEdyb3NzIHdyb3RlOgoKSGVsbG8gSnVlcmdlbgoK PiBPbiAyMy4wNC4yMiAwOTowNSwgT2xla3NhbmRyIHdyb3RlOgo+Pgo+PiBPbiAyMy4wNC4yMiAw MjowMCwgU3RlZmFubyBTdGFiZWxsaW5pIHdyb3RlOgo+Pgo+PiBIZWxsbyBTdGVmYW5vCj4+Cj4+ Cj4+PiBPbiBGcmksIDIyIEFwciAyMDIyLCBPbGVrc2FuZHIgVHlzaGNoZW5rbyB3cm90ZToKPj4+ PiBGcm9tOiBKdWVyZ2VuIEdyb3NzIDxqZ3Jvc3NAc3VzZS5jb20+Cj4+Pj4KPj4+PiBJbnRyb2R1 Y2UgWGVuIGdyYW50IERNQS1tYXBwaW5nIGxheWVyIHdoaWNoIGNvbnRhaW5zIHNwZWNpYWwgCj4+ Pj4gRE1BLW1hcHBpbmcKPj4+PiByb3V0aW5lcyBmb3IgcHJvdmlkaW5nIGdyYW50IHJlZmVyZW5j ZXMgYXMgRE1BIGFkZHJlc3NlcyB0byBiZSB1c2VkIGJ5Cj4+Pj4gZnJvbnRlbmRzIChlLmcuIHZp cnRpbykgaW4gWGVuIGd1ZXN0cy4KPj4+Pgo+Pj4+IEluIG9yZGVyIHRvIHN1cHBvcnQgdmlydGlv IGluIFhlbiBndWVzdHMgYWRkIGEgY29uZmlnIG9wdGlvbiAKPj4+PiBYRU5fVklSVElPCj4+Pj4g ZW5hYmxpbmcgdGhlIHVzZXIgdG8gc3BlY2lmeSB3aGV0aGVyIGluIGFsbCBYZW4gZ3Vlc3RzIHZp cnRpbyBzaG91bGQKPj4+PiBiZSBhYmxlIHRvIGFjY2VzcyBtZW1vcnkgdmlhIFhlbiBncmFudCBt YXBwaW5ncyBvbmx5IG9uIHRoZSBob3N0IHNpZGUuCj4+Pj4KPj4+PiBBcyB0aGlzIGFsc28gcmVx dWlyZXMgcHJvdmlkaW5nIAo+Pj4+IGFyY2hfaGFzX3Jlc3RyaWN0ZWRfdmlydGlvX21lbW9yeV9h Y2Nlc3MKPj4+PiBpbXBsZW1lbnRhdGlvbiwgc3dpdGNoIGZyb20gYSBwdXJlIHN0dWIgdG8gYSBy ZWFsIGZ1bmN0aW9uIG9uIEFybQo+Pj4+IGFuZCBjb21iaW5lIHdpdGggZXhpc3RpbmcgaW1wbGVt ZW50YXRpb24gZm9yIHRoZSBTRVYgZ3Vlc3RzIG9uIHg4Ni4KPj4+Pgo+Pj4+IEFkZCB0aGUgbmVl ZGVkIGZ1bmN0aW9uYWxpdHkgYnkgcHJvdmlkaW5nIGEgc3BlY2lhbCBzZXQgb2YgRE1BIG9wcwo+ Pj4+IGhhbmRsaW5nIHRoZSBuZWVkZWQgZ3JhbnQgb3BlcmF0aW9ucyBmb3IgdGhlIEkvTyBwYWdl cy4KPj4+Pgo+Pj4+IFNpZ25lZC1vZmYtYnk6IEp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNv bT4KPj4+PiBTaWduZWQtb2ZmLWJ5OiBPbGVrc2FuZHIgVHlzaGNoZW5rbyA8b2xla3NhbmRyX3R5 c2hjaGVua29AZXBhbS5jb20+Cj4+PiBUaGVyZSBhcmUgYSBjb3VwbGUgb2YgbWlub3IgdGhpbmdz IHRoYXQgY2hlY2twYXRjaC5wbCByZXBvcnRzLAo+Pgo+PiBUaGFuayB5b3UgZm9yIHBvaW50aW5n IHRoaXMgb3V0LCBteSBmYXVsdC4KPj4KPj4KPj4+IMKgIGJ1dCBhc2lkZQo+Pj4gZnJvbSB0aG9z ZSB0aGUgcGF0Y2ggbG9va3MgZmluZSB0byBtZS4KPj4KPj4gZ29vZAo+Pgo+Pgo+PiBUaGUgYXR0 YWNoZWQgZGlmZiB0byBiZSBzcXVhc2hlZCBmb3IgdGhlIG5ldyB2ZXJzaW9uLiBPbmUgdGhpbmcg cmVtYWluczoKPj4KPj4gY2hlY2twYXRjaC5wbCBzYXlzIHJlZ2FyZGluZyBkcml2ZXJzL3hlbi9n cmFudC1kbWEtb3BzLmM6Cj4+Cj4+IFdBUk5JTkc6IGFkZGVkLCBtb3ZlZCBvciBkZWxldGVkIGZp bGUocyksIGRvZXMgTUFJTlRBSU5FUlMgbmVlZCAKPj4gdXBkYXRpbmc/Cj4+ICMxNTE6Cj4+IG5l dyBmaWxlIG1vZGUgMTAwNjQ0Cj4+Cj4+Cj4+IFdoaWNoLCBJIGFzc3VtZSwgdGhpcyBpcyBub3Qg YW4gaXNzdWUgYXMgbmV3IGZpbGUgZmFsbHMgdW5kZXIgWEVOIAo+PiBIWVBFUlZJU09SIElOVEVS RkFDRSBtYWludGFpbmVyc2hpcD8KPgo+IFllcy4KCgpvaywgdGhhbmsgeW91IGZvciB0aGUgY29u ZmlybWF0aW9uLgoKCj4KPgo+IEp1ZXJnZW4KCi0tIApSZWdhcmRzLAoKT2xla3NhbmRyIFR5c2hj aGVua28KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwps aW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJh ZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51 eC1hcm0ta2VybmVsCg==