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 63A45C6FD1D for ; Mon, 27 Mar 2023 15:28:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232508AbjC0P2U (ORCPT ); Mon, 27 Mar 2023 11:28:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232398AbjC0P2S (ORCPT ); Mon, 27 Mar 2023 11:28:18 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB61210F5 for ; Mon, 27 Mar 2023 08:28:17 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-5425c04765dso91084597b3.0 for ; Mon, 27 Mar 2023 08:28:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1679930897; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=f8JBRCY78ZSzuGLljBnUO/BHHKr3CYdvg+wmNXBil8g=; b=dqcHIJaGv5oQNTDf+jYjjPGGrIVf7GBwZMp7QKzoL40Ol9sdvVPKCNKWbbq9GE7KJw fTe0CyY9fv3KCh7uuvmqRddtg/Qdj1MvgfH3ZyNEhKzEzNOSYGKNPt782BB/RfXJWV0h YJXLib9kYrO/dThgwZ0DbEiBsrdteZ4adqj21utoOgQJb7NLVZKoUJW0adZJi/N4hmia erYe9zOl2i+p43YBOvbYEVtB4ZqgZkM/KEWnBpoH4GL6Yht+9fXQr+hIalSF/naVn7/t 8Zo/gVSY6HGrlNNil6YicEPptQqFj0G/BaNEChxrR62BvW2eXaTWH4xtjoB4udj0inYZ TO0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679930897; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=f8JBRCY78ZSzuGLljBnUO/BHHKr3CYdvg+wmNXBil8g=; b=hG7G2O50uRetHfJPy1FRP+IyEKhPpzzGXEP1AYZPj2o34UwXOAR9q6o1KsgjHtKEaD BNsmZriDkSCrmrmroLhC6ylynk6nRolgseXb327mWbO9u8f3CuOiKEqfGUgLkAdQ3Nha x2PV2oDx2MrEUgOoj0GK7yNfOyK0xO7u7vtbgGm4+ss38gdQ57nXYW8Utr0Xl180mlgA 4mN/GMnKkyd8L5ZSldlCD51AneUBj7VMXj9eydlTEg2IwJJVzx75inATLjiYYi7Wt43K 8o+omQOQa0G6or82/Sz5+KleKIE34XHTIMIf6G809EUYcBgQv1lSbUAiIFA6QAtkd8Lt IrOw== X-Gm-Message-State: AAQBX9cyar6biJeOn/i0yGpYlO2tb8qO6SCYsV6W5AHf88MjIInrQ96K tcaf7/MVHAYykkOwCXz1ClfbSnAzN9E= X-Google-Smtp-Source: AKy350b83eGk6L6ND7l/neGCC3/wJiQDCcFmipF8r8V3OiF/SEkhLqe+P7zSzlOtyKX9choru9pVg685uOI= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a81:eb02:0:b0:545:883a:544d with SMTP id n2-20020a81eb02000000b00545883a544dmr5743906ywm.9.1679930897136; Mon, 27 Mar 2023 08:28:17 -0700 (PDT) Date: Mon, 27 Mar 2023 08:28:15 -0700 In-Reply-To: <151c3b04-31db-6a50-23af-c6886098c85c@redhat.com> Mime-Version: 1.0 References: <20230322011440.2195485-1-seanjc@google.com> <151c3b04-31db-6a50-23af-c6886098c85c@redhat.com> Message-ID: Subject: Re: [PATCH 0/6] KVM: x86: Unhost the *_CMD MSR mess From: Sean Christopherson To: Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Nathan Chancellor , Emanuele Giuseppe Esposito , Pawan Gupta , Jim Mattson Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, Mar 27, 2023, Paolo Bonzini wrote: > 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? No, I'll get that done today (I pinky swear this time).