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 7723FC433EF for ; Wed, 23 Mar 2022 18:07:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231649AbiCWSJE (ORCPT ); Wed, 23 Mar 2022 14:09:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239992AbiCWSI6 (ORCPT ); Wed, 23 Mar 2022 14:08:58 -0400 Received: from mail-io1-xd32.google.com (mail-io1-xd32.google.com [IPv6:2607:f8b0:4864:20::d32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0179A888F3 for ; Wed, 23 Mar 2022 11:07:28 -0700 (PDT) Received: by mail-io1-xd32.google.com with SMTP id k25so2655792iok.8 for ; Wed, 23 Mar 2022 11:07:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=6WfovYqoRINN5ewrjsJajufKxICxtDG1bQZ2e+C3x4I=; b=rf7kB/bG1sUglJuj1VORlxGYQhCZJWSma6P2amN7uTyvwN/JL21bAPu/HZUv6wovhn BKvlE1MZyFyryX7jmENq+fsyOFj4RgT33mFCLpYNC0W/rIpneqBPnrwj1Erlm7s+AmwK YNxZ3EIbE3pym9sTiBPgz6BdlfFYk2djfXfwan8uOVDmEnd6CIA++bVuTu/6fMz4rORT ujF7rFuxnm09X621JqveGtSQrJ0nVCJRr9Uy9lu1nhZ5K1EzB/r6AP/NkcHCS2QHJwDn mA2drnJLrYyaoaueVKVkhFPMyVikyFKbafqmeClXyQauVtzBWsuogy7PJf7fEC/ZWJ9z pcgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=6WfovYqoRINN5ewrjsJajufKxICxtDG1bQZ2e+C3x4I=; b=c0uvTckbx1uM6f9MMxV5laRjtPnts3Up4XoQQHkenGjjgaFdpl89fO5W7E+ye58UZl iCwhXPsgGhxF2VqW7YR0CowRZYqfCv6NF2unEMuQVjkWyyzUbjPN6KZTQAUt7ny7HhEr 5dbk5PKVJwvtOqsTKOyqaA6IlizC15w+m3pfuC8r16mpRnkW4x6zTyM0W3FLoxKHf854 7Qip0ecSRXGaYy1S5P3FLs5YdXDXPlULk0D0mTR9fjUiw8U8TpG5dkLHCIWsNMatQGwZ wHKXXJYrwtq4gKSw4fjETxkSP5t0DG1qlO/9G5eyHoEt0/dZYWjh93Y7bBLewFLA6ACc Q3sw== X-Gm-Message-State: AOAM5321PcVGy+kubMgjYwOFhV29UleJce5lQ7FTmY31CVka0NzsjDlB QPIASo8rsMsW3nJ9pLMNhiRltA== X-Google-Smtp-Source: ABdhPJxZFCBQjB576z7b7Q4c3lB/HGhmIbF3QZ09QOOC0Hsgr46QcsYqtPPdcTToKolKlaRdGX2LlA== X-Received: by 2002:a02:aa85:0:b0:321:4b0d:6423 with SMTP id u5-20020a02aa85000000b003214b0d6423mr625961jai.219.1648058847205; Wed, 23 Mar 2022 11:07:27 -0700 (PDT) Received: from google.com (194.225.68.34.bc.googleusercontent.com. [34.68.225.194]) by smtp.gmail.com with ESMTPSA id t13-20020a056e02160d00b002c808d68c60sm376113ilu.15.2022.03.23.11.07.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Mar 2022 11:07:26 -0700 (PDT) Date: Wed, 23 Mar 2022 18:07:23 +0000 From: Oliver Upton To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, mlevitsk@redhat.com, jmattson@google.com Subject: Re: [PATCH 2/3] Documentation: KVM: add virtual CPU errata documentation Message-ID: References: <20220322110712.222449-1-pbonzini@redhat.com> <20220322110712.222449-3-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220322110712.222449-3-pbonzini@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Paolo, On Tue, Mar 22, 2022 at 12:07:11PM +0100, Paolo Bonzini wrote: > Add a file to document all the different ways in which the virtual CPU > emulation is imperfect. Include an example to show how to document > such errata. > > Signed-off-by: Paolo Bonzini +100, this is excellent! Reviewed-by: Oliver Upton > --- > Documentation/virt/kvm/x86/errata.rst | 39 +++++++++++++++++++++++++++ > Documentation/virt/kvm/x86/index.rst | 1 + > 2 files changed, 40 insertions(+) > create mode 100644 Documentation/virt/kvm/x86/errata.rst > > diff --git a/Documentation/virt/kvm/x86/errata.rst b/Documentation/virt/kvm/x86/errata.rst > new file mode 100644 > index 000000000000..df394d34a836 > --- /dev/null > +++ b/Documentation/virt/kvm/x86/errata.rst > @@ -0,0 +1,39 @@ > + > +======================================= > +Known limitations of CPU virtualization > +======================================= In an attempt for us KVM developers to save face, would it make sense to rip the table for KVM_CAP_DISABLE_QUIRKS2 out of api.rst and drop it here? That way, we can discuss all of the known errata in KVM *and* mention the chicken bits we provide to mitigate :) -- Thanks, Oliver