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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEB66C433EF for ; Thu, 11 Nov 2021 08:14:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C831F610C8 for ; Thu, 11 Nov 2021 08:14:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232280AbhKKIRI convert rfc822-to-8bit (ORCPT ); Thu, 11 Nov 2021 03:17:08 -0500 Received: from mga12.intel.com ([192.55.52.136]:48266 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231675AbhKKIRG (ORCPT ); Thu, 11 Nov 2021 03:17:06 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10164"; a="212903990" X-IronPort-AV: E=Sophos;i="5.87,225,1631602800"; d="scan'208";a="212903990" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Nov 2021 00:14:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,225,1631602800"; d="scan'208";a="583171608" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by FMSMGA003.fm.intel.com with ESMTP; 11 Nov 2021 00:14:15 -0800 Received: from fmsmsx611.amr.corp.intel.com (10.18.126.91) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12; Thu, 11 Nov 2021 00:14:15 -0800 Received: from shsmsx601.ccr.corp.intel.com (10.109.6.141) by fmsmsx611.amr.corp.intel.com (10.18.126.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12; Thu, 11 Nov 2021 00:14:13 -0800 Received: from shsmsx601.ccr.corp.intel.com ([10.109.6.141]) by SHSMSX601.ccr.corp.intel.com ([10.109.6.141]) with mapi id 15.01.2242.012; Thu, 11 Nov 2021 16:14:11 +0800 From: "Wang, Wei W" To: Stefano Garzarella CC: "davem@davemloft.net" , "kuba@kernel.org" , Stefan Hajnoczi , "mst@redhat.com" , Paolo Bonzini , "kys@microsoft.com" , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "Yamahata, Isaku" , "Nakajima, Jun" , "Kleen, Andi" , Andra Paraschiv , "Sergio Lopez Pascual" Subject: RE: [RFC] hypercall-vsock: add a new vsock transport Thread-Topic: [RFC] hypercall-vsock: add a new vsock transport Thread-Index: AdfR7PQwhDKKIu84SJaS6/iA/MsV5gD9INQAADxfhIA= Date: Thu, 11 Nov 2021 08:14:11 +0000 Message-ID: <9901a74b149d4245b0e6c998b5cde7af@intel.com> References: <71d7b0463629471e9d4887d7fcef1d8d@intel.com> <20211110111718.5cvt6vgory3fzqld@steredhat> In-Reply-To: <20211110111718.5cvt6vgory3fzqld@steredhat> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.6.200.16 x-originating-ip: [10.239.127.36] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday, November 10, 2021 7:17 PM, Stefano Garzarella wrote: > Adding Andra and Sergio, because IIRC Firecracker and libkrun emulates > virtio-vsock with virtio-mmio so the implementation should be simple and also > not directly tied to a specific VMM. > OK. This would be OK for KVM based guests. For Hyperv and VMWare based guests, they don't have virtio-mmio support. If the MigTD (a special guest) we provide is based on virtio-mmio, it would not be usable to them. Thanks, Wei