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 F0E45C76196 for ; Fri, 7 Apr 2023 21:05:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230091AbjDGVFg (ORCPT ); Fri, 7 Apr 2023 17:05:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229614AbjDGVFf (ORCPT ); Fri, 7 Apr 2023 17:05:35 -0400 Received: from bird.elm.relay.mailchannels.net (bird.elm.relay.mailchannels.net [23.83.212.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 648451A8 for ; Fri, 7 Apr 2023 14:05:34 -0700 (PDT) X-Sender-Id: dreamhost|x-authsender|dragan@stancevic.com Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id BDA853E0DD7; Fri, 7 Apr 2023 21:05:33 +0000 (UTC) Received: from pdx1-sub0-mail-a294.dreamhost.com (unknown [127.0.0.6]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 3A64C3E0D55; Fri, 7 Apr 2023 21:05:33 +0000 (UTC) ARC-Seal: i=1; s=arc-2022; d=mailchannels.net; t=1680901533; a=rsa-sha256; cv=none; b=Qu/itOePCsskU3vANFpP/4p521obpDk6yD19a6SFemDjn2xDf3PFt65U9f/WAU6hXHJjP5 zGxkBpYPBFuMCtZh+0A08QmEbncKDRPKrIZAlGHj2iUZigks0nvypkIw1a/o30iVZxOliq x78oLC+1RrOMcXKsiLLmxgeiFOESq5E7m1HDu6tUiW9teD/5u18mTi6idJRI/amXULnKBN vI0U5ztGje8/VrKjr5sF3SbPjHarTkDATUCD1tYgdqOUlE7uUt6D8eWmuG4LxYH076RWQA u0UTGorZ20OSzM3NJoSPWN/F65IM+EE3G2FL9VrKdK0wbVeu4ybAQg5/Vp3Xtw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=mailchannels.net; s=arc-2022; t=1680901533; 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:dkim-signature; bh=kLIJVh6wZLoGZw5fjUt2cLYd3LiMD8Ukj+V8GN1qqDw=; b=wHio3Dcz1x2wFzyGP3fl8LFvNdLic5oEra+5A/kyJdI8vomv01oIlqMq0ELluO0odVFFi7 30POCwV/+S2svcerKtx3Wu6e2BvZ/AIM+8SBvc2NTC6wwFepZzS5nz+aQEp49wxrBEx5HE tk6LKDqiQZLH+bjsgQFLvYkCyBczErKcyBc4sG5O08sL2RbL3fwlMYSga7r7FFEvYYAEOr qURcvCcm0lMGwjFglW9bofL163dAkioO6zKxUy50pPdpjjmUlTQJUXYPQmlHIzijPmszmE BLjQngC8HpmXcg6p09aXpKy4nZMrF5kCmsSXHwaT+0lBa8bIz3sXGQqvB9B2VQ== ARC-Authentication-Results: i=1; rspamd-5468d68f6d-w9llh; auth=pass smtp.auth=dreamhost smtp.mailfrom=dragan@stancevic.com X-Sender-Id: dreamhost|x-authsender|dragan@stancevic.com X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|dragan@stancevic.com X-MailChannels-Auth-Id: dreamhost X-Blushing-Shrill: 295646891d38cf94_1680901533540_2485106083 X-MC-Loop-Signature: 1680901533540:1185009869 X-MC-Ingress-Time: 1680901533540 Received: from pdx1-sub0-mail-a294.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384) by 100.107.49.248 (trex/6.7.2); Fri, 07 Apr 2023 21:05:33 +0000 Received: from [192.168.1.31] (99-160-136-52.lightspeed.nsvltn.sbcglobal.net [99.160.136.52]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dragan@stancevic.com) by pdx1-sub0-mail-a294.dreamhost.com (Postfix) with ESMTPSA id 4PtW9S4XX8z1p; Fri, 7 Apr 2023 14:05:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stancevic.com; s=dreamhost; t=1680901533; bh=kLIJVh6wZLoGZw5fjUt2cLYd3LiMD8Ukj+V8GN1qqDw=; h=Date:From:Subject:To:Cc:Content-Type:Content-Transfer-Encoding; b=DHxS1AfWkJQkwbsb/LA19+voTqVgUO7werTheAxLVFukpaa2dWicDpU4Rmg6krKLt mS78yopjTFpzQ9x3x9pgahOlqWA3k5MzMKoElOPn++0odQiynPzEcxoT+B7jOR4cHf 3GSNcoOFbQ9+bsxyqDw4KmCcxlGJ2Qnziscdv1fPYsu5etTfM0DSNJoZs72ADFt4/p tfStFtH5YLqqGe+g+tFsZIBFoGQ6q7F3QncBoEy0e80SciHTJjFug6g7vLhauLXik4 aKr/NOEpgsaw3ZI5lKmKcpUdsxJrsis/TRZCOhNrvmn9jRT1achGZE8jTF76p0MqK2 9znY324r1HUnQ== Message-ID: <5d1156eb-02ae-a6cc-54bb-db3df3ca0597@stancevic.com> Date: Fri, 7 Apr 2023 16:05:31 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Content-Language: en-US From: Dragan Stancevic Subject: =?UTF-8?Q?=5bLSF/MM/BPF_TOPIC=5d_BoF_VM_live_migration_over_CXL_mem?= =?UTF-8?B?b3J54oCL?= To: lsf-pc@lists.linux-foundation.org Cc: nil-migration@lists.linux.dev, linux-cxl@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Hi folks- if it's not too late for the schedule... I am starting to tackle VM live migration and hypervisor clustering over switched CXL memory[1][2], intended for cloud virtualization types of loads. I'd be interested in doing a small BoF session with some slides and get into a discussion/brainstorming with other people that deal with VM/LM cloud loads. Among other things to discuss would be page migrations over switched CXL memory, shared in-memory ABI to allow VM hand-off between hypervisors, etc... A few of us discussed some of this under the ZONE_XMEM thread, but I figured it might be better to start a separate thread. If there is interested, thank you. [1]. High-level overview available at http://nil-migration.org/ [2]. Based on CXL spec 3.0 -- Peace can only come as a natural consequence of universal enlightenment -Dr. Nikola Tesla