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 CC239C54EBD for ; Fri, 13 Jan 2023 18:41:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229825AbjAMSlt (ORCPT ); Fri, 13 Jan 2023 13:41:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230025AbjAMSlp (ORCPT ); Fri, 13 Jan 2023 13:41:45 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CA593D1DF for ; Fri, 13 Jan 2023 10:41:42 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id v23so23253254pju.3 for ; Fri, 13 Jan 2023 10:41:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=godItNTiu1hFRNSRzyHDiQ09s/Iir0TYSKsoCsWjnBI=; b=ETvBwnoWQjAy4YvByjEGST2SfwtwOTHrXBkGCH7CY6CS5ocaYNVmsxWzl03UwSz2vl x3+YtwG7slgYRTPbz7quPAROdVldSPr1rg8X1IIdhN4n9G1uHeKtc47dPm+kAYJkPw3/ kfkgfQzlVLeF9ptQAC+MyzOyCvW28G+mN0j7yVqDXuMtSAYzpwMUfS+AeQO6WXsuJ3So cVwE1PVqO4EJIW81fT4RocCow5Iwk5FO85cu18YG/g0KwtMkMYxLQBqTzd5cG27Jnv3+ u0HagV3CDWxT8onavImXo6uH0GaE1U50G5ghTh6KRwvyRfoYIjhim2uPN4VsNuF/V4Wc oy+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=godItNTiu1hFRNSRzyHDiQ09s/Iir0TYSKsoCsWjnBI=; b=qGEmLYj66NqjG2VsNBihR11hYo+lBdZfGGiSklFeqBb0uM3xRSTk7ffSu3p7hg2jol SGhzcxTOSB+xXbpFHA0ed+tF15YTs1uA/GKX5xJH3Lv6CCDWG1bSE9hGXJgBEOp+G0tZ ObRo0yrrdBRxmmWTjywHDeU3fwFmjUsNUp7TgpxbGZoluz5/nJ3pOLpEU8ox1UYMI2Mp LeSE1AnIpQxldUQFSBAGKooVTORulRHM28YR+otpfL7SRRaweMqWD5swQoWJY5yITiOD SJ7E6i0JH9qHMFHvEb3eUnrz5eLL1QdMB9CaNXU7dvOk0D0InrnbshmAwwq5uZjJT2mn a74A== X-Gm-Message-State: AFqh2kqaieCy3EoIqb9f/dbTFk7lsxBL/daWxU/lfbeqRj2Cozn5tGz1 S0hoe+hHY2C/3G6r8ngea6tFFQ== X-Google-Smtp-Source: AMrXdXvRij7in5oNpdpmDfXW61gvt60eWr/Gx1OLt9EPk0FAutZuxDCB4HdkixgaoHQ2ouBVgm2OKQ== X-Received: by 2002:a17:90a:d148:b0:229:1e87:365f with SMTP id t8-20020a17090ad14800b002291e87365fmr495333pjw.2.1673635301522; Fri, 13 Jan 2023 10:41:41 -0800 (PST) Received: from google.com (7.104.168.34.bc.googleusercontent.com. [34.168.104.7]) by smtp.gmail.com with ESMTPSA id y23-20020a17090ad71700b0022910fa4d1csm2619706pju.46.2023.01.13.10.41.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Jan 2023 10:41:41 -0800 (PST) Date: Fri, 13 Jan 2023 18:41:37 +0000 From: Sean Christopherson To: Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Marc Orr , Ben Gardon , Venkatesh Srinivas Subject: Re: [PATCH 0/6] KVM: x86: x2APIC reserved bits/regs fixes Message-ID: References: <20230107011025.565472-1-seanjc@google.com> <674ac894-12a2-c15f-72c5-878558a8005d@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <674ac894-12a2-c15f-72c5-878558a8005d@redhat.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Jan 13, 2023, Paolo Bonzini wrote: > On 1/7/23 02:10, Sean Christopherson wrote: > > Fixes for edge cases where KVM mishandles reserved bits/regs checks when > > the vCPU is in x2APIC mode. > > > > The first two patches were previously posted[*], but both patches were > > broken (as posted against upstream), hence I took full credit for doing > > the work and changed Marc to a reporter. > > > > The VMX APICv fixes are for bugs found when writing tests. *sigh* > > I didn't Cc those to stable as the odds of breaking something when touching > > the MSR bitmaps seemed higher than someone caring about a 10 year old bug. > > > > AMD x2AVIC support may or may not suffer similar interception bugs, but I > > don't have hardware to test and this already snowballed further than > > expected... > > > > [*] https://lore.kernel.org/kvm/20220525173933.1611076-1-venkateshs@chromium.org > > Looks good; please feel free to start gathering this in your tree for 6.3. Thanks! > Next week I'll go through Ben's series as well as Aaron's "Clean up the > supported xfeatures" and others. > > Let me know if you would like me to queue anything of these instead, and > please remember to set up the tree in linux-next. :) Ya, next week is going to be dedicated to sorting out maintenance mechanics.