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 X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8FDCC433E0 for ; Thu, 25 Feb 2021 11:28:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7740A64EF5 for ; Thu, 25 Feb 2021 11:28:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235330AbhBYL2f (ORCPT ); Thu, 25 Feb 2021 06:28:35 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:20990 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235260AbhBYL2V (ORCPT ); Thu, 25 Feb 2021 06:28:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614252414; 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=sWESMD0nckHAI0xFpXZL4oIkaF2/ZscfrAoYu7OfI+w=; b=LbssIS6RXN08uAPydQKG5f46Ql2Y18zrewLfWv0NgkBtqFS2GKKJzN+Yo1x0Hc9mMrHfDG jxLOnPvw1pDQDLeuOHs+UeX4Y8JFDAUCqzmpgmj+9q3q33B8KmO2Pjo29vL/BxpLtV4lFY MHmct2hw6ADJrgbjOKnI5WaaYcg++qY= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-340-58Va3ZONOQ-mTFeMjb7-5Q-1; Thu, 25 Feb 2021 06:26:52 -0500 X-MC-Unique: 58Va3ZONOQ-mTFeMjb7-5Q-1 Received: by mail-ej1-f72.google.com with SMTP id ml13so2300133ejb.2 for ; Thu, 25 Feb 2021 03:26:52 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=sWESMD0nckHAI0xFpXZL4oIkaF2/ZscfrAoYu7OfI+w=; b=VozsKQdvOpR6yjSyz/3oOQYmcnUmq6hOER5E6Qqdbj35zwc6vbDZfMpbBm89EuTp7F qjhE4tJi/o1+Sn/5HYUbSIgnkFd2CgF8c9jeo5OOnAAxK2jON3OK36vOpeyU5apHxXFI sZ56K9sbcLWLB8FUmnwbW9VCXqexe8I/XDDaDKyanUCq2Y6LhLmNsvOq7cuzxMCwNDqB 2XWAlR7H3uzrNCqytN+nCiL9zLqkgGU2AV9v0WeuWGIHjM7TQLJNU5zXlJvzSa+UQXQ3 DITKgQiklhCxtTbj0seblA6TcI6jdbQwVWlyDYSp6jgHX7zej1cIfkmVHgHZxBuy3G6G +lJQ== X-Gm-Message-State: AOAM531oraKWOU4CyKRCnLbaIkqtLbuSF4Ic4Wi/UbhQabkpIpDfQMR/ l7M18Kv99q20Y1byOjQ7IkZe96p9zbcZxhJbnzZ+uu6qYrM7yMKhIb64ObbRl26gWDJw3l9ZlrL 462ugleZt7aEg X-Received: by 2002:a17:906:2b0a:: with SMTP id a10mr2214737ejg.513.1614252411242; Thu, 25 Feb 2021 03:26:51 -0800 (PST) X-Google-Smtp-Source: ABdhPJz+FV6cFCWq34Zp4VXzSaCx9CjsJto7qwRC97dXBeI5c95SCD9qPGVFJCozP5ss3voP39HZCA== X-Received: by 2002:a17:906:2b0a:: with SMTP id a10mr2214723ejg.513.1614252411050; Thu, 25 Feb 2021 03:26:51 -0800 (PST) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id dm20sm3237866edb.59.2021.02.25.03.26.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 25 Feb 2021 03:26:50 -0800 (PST) Subject: Re: [RFC] KVM: x86: Support KVM VMs sharing SEV context To: Sean Christopherson Cc: Nathan Tempelman , thomas.lendacky@amd.com, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, srutherford@google.com, rientjes@google.com, brijesh.singh@amd.com, Ashish.Kalra@amd.com, Nathaniel McCallum , Marc Orr , "Hyunwook (Wooky) Baek" References: <20210224085915.28751-1-natet@google.com> <04b37d71-c887-660b-5046-17dec4bb4115@redhat.com> From: Paolo Bonzini Message-ID: Date: Thu, 25 Feb 2021 12:26:49 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 24/02/21 17:58, Sean Christopherson wrote: > That being said, is there a strong need to get this into 5.12? AIUI, this hasn't > had any meaningful testing, selftests/kvm-unit-tests or otherwise. Pushing out > to 5.13 might give us a good chance of getting some real testing before merging, > depending on the readiness of SEV testing support. Note that I don't mean including this in the merge window. However, I know that there are multiple people working on alternative SEV live migration support, and as long as we are sure that the API is simple and useful, it should be okay to merge this for rc2 or rc3. Paolo