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 BA292C76195 for ; Mon, 27 Mar 2023 15:20:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232310AbjC0PUu (ORCPT ); Mon, 27 Mar 2023 11:20:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231960AbjC0PUr (ORCPT ); Mon, 27 Mar 2023 11:20:47 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47CC11BFB for ; Mon, 27 Mar 2023 08:20:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1679930402; 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=kBXULJ0YJW6Vv+dTm+DQzBsn3dK4XBiUD4aYtQvteI8=; b=JS7TclyPtK5V7X2lhcZYeBTklmIjVdFWmVCAVLFR7cYPr7xARJ/P2FC5X2xB0DAR/iVB52 oE9TNgTyLRrnnbHTSFZzEY1A6BhDll5FbFm3D5zviGHFMIqqH7b48cFtL1HccJs3a6U9QY KqGHAzNN2mk+ofqbsPhN47vFgeuPBgg= Received: from mail-ed1-f72.google.com (mail-ed1-f72.google.com [209.85.208.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-493-_E1eDXOuOLam-Ow5sgIi1Q-1; Mon, 27 Mar 2023 11:19:58 -0400 X-MC-Unique: _E1eDXOuOLam-Ow5sgIi1Q-1 Received: by mail-ed1-f72.google.com with SMTP id k14-20020a508ace000000b005024a8cef5cso1771648edk.22 for ; Mon, 27 Mar 2023 08:19:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679930397; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=kBXULJ0YJW6Vv+dTm+DQzBsn3dK4XBiUD4aYtQvteI8=; b=K135YPKZ7QONW3rH7GE5RbMfzflfVCY/m9E1d1PPEGChG/0P3vQUqoyNUL+ha/Hdmk +Td89FeeXWq7BDuOjGG4mHu4vjgs6XUKDM9GRotcn0d0izFyWnUhC/J7E1s+i0bLxYqc d1v7NnmpBD8O347yDZJO1DXEeDuWTFhjRjzxAvnvY8CftDH0WxD4fMSeZQCF/XT7TX8k Ddet2nZyo5gWHOhD9BefS/xn24AzZJY1K77bZqxr25zZjSCRJn7cSzZYLnBHVNaRx7d0 o0+ylclqBVmtNte8TDx4soUwLn1aV3TsBx4mn4uvT9SzEQTIvie7EzQI75iciiGuRybK 70UQ== X-Gm-Message-State: AAQBX9fFSQiIBZA8fAi6Mms+0p2b2Cnmk9HialvYRQERe4422UNHf/Tb EKE9CjaAUG9fcjnqLqsrFC3Xy7ogY0P1FI2y90EhWeuEm/mjZHstDYfYMFmh9WtF/E7ZYMhixMq ZXnrP1aoy1Xs3M0abz3n4hiNS X-Received: by 2002:a17:906:f6cd:b0:92f:b8d0:746c with SMTP id jo13-20020a170906f6cd00b0092fb8d0746cmr12315934ejb.20.1679930397764; Mon, 27 Mar 2023 08:19:57 -0700 (PDT) X-Google-Smtp-Source: AKy350amEJt/4jKby5lbzCbh7fHRRBROfolwArbQtP8/z/b3EANonkAshH00FVXH2WUDdpY6F6QaDQ== X-Received: by 2002:a17:906:f6cd:b0:92f:b8d0:746c with SMTP id jo13-20020a170906f6cd00b0092fb8d0746cmr12315913ejb.20.1679930397502; Mon, 27 Mar 2023 08:19:57 -0700 (PDT) Received: from ?IPV6:2001:b07:6468:f312:9af8:e5f5:7516:fa89? ([2001:b07:6468:f312:9af8:e5f5:7516:fa89]) by smtp.googlemail.com with ESMTPSA id r12-20020a50c00c000000b00501d2f10d19sm10349379edb.20.2023.03.27.08.19.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Mar 2023 08:19:56 -0700 (PDT) Message-ID: <151c3b04-31db-6a50-23af-c6886098c85c@redhat.com> Date: Mon, 27 Mar 2023 17:19:55 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH 0/6] KVM: x86: Unhost the *_CMD MSR mess Content-Language: en-US To: Sean Christopherson Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Nathan Chancellor , Emanuele Giuseppe Esposito , Pawan Gupta , Jim Mattson References: <20230322011440.2195485-1-seanjc@google.com> From: Paolo Bonzini In-Reply-To: <20230322011440.2195485-1-seanjc@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/22/23 02:14, Sean Christopherson wrote: > Revert the FLUSH_L1D enabling, which has multiple fatal bugs, clean up > the existing PRED_CMD handling, and reintroduce FLUSH_L1D virtualization > without inheriting the mistakes made by PRED_CMD. > > The last patch hardens SVM against one of the bugs introduced in the > FLUSH_L1D enabling. > > I'll post KUT patches tomorrow. I have the tests written (and they found > bugs in my code, :shocked-pikachu:), just need to write the changelogs. > Wanted to get this out sooner than later as I'm guessing I'm not the only > one whose VMs won't boot on Intel CPUs... Hi Sean, did you post them? Paolo