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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 84E17C432BE for ; Thu, 5 Aug 2021 22:35:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3CAA361131 for ; Thu, 5 Aug 2021 22:35:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241454AbhHEWfh (ORCPT ); Thu, 5 Aug 2021 18:35:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241118AbhHEWfg (ORCPT ); Thu, 5 Aug 2021 18:35:36 -0400 Received: from mail-ot1-x330.google.com (mail-ot1-x330.google.com [IPv6:2607:f8b0:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFB2EC06179B for ; Thu, 5 Aug 2021 15:35:20 -0700 (PDT) Received: by mail-ot1-x330.google.com with SMTP id o2-20020a9d22020000b0290462f0ab0800so6779382ota.11 for ; Thu, 05 Aug 2021 15:35:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KVTnHbOM2DIScdbOMEPWTzanu221l3U7VK0cHnd3T5E=; b=jSeCtqHhi/x79MnldARKBL7d9Q5jQRTtyGjjvO7BlYCrgANaxgE/iHQrfOzrtugUN6 HzjuE/bbR6a5M3ZVLtyoDbDvjPoFZSCPw/s6Ae3pUgYA/wdS4WVLYf/xmsswwI0ByBAX f6XnZy05IkxYlIbdTviVjXeZHWYWN5xr1yto4Hmp+knx9DUH67jN5ur+HjlAXU9MBfkz LVo2vdBlDjeV5WnLyemK2vl9IWA6UoF35BJUo1cdrMq5Z5UbYdn0qYzh4LycMTXEGI0D VMasLhu35ZfoiBiSdk6A7Ylx5RlBtvIFOajLumF4zXSbUz55tCpzEBUOjg4wzzGctQcd 2xRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KVTnHbOM2DIScdbOMEPWTzanu221l3U7VK0cHnd3T5E=; b=nGpkATf6tJF4hkR6m3TLKCTi6WcftuKJY181hftuxCfwB/LMgVll0JrYTS/pJQQTWT a54JIsrJXH8+v0YnarkjkGnV0bkrKzygtUh1UvGBtN6aC5Nj5XeutkTJ3LiwW07faXco 7DQe0KyqtdRvtonNVqfAtvrX5s91uI3roLznEUh4mGNNeFjwRJU/cAvAEoWNNohjItwR qtCyGQeeYqv9TcvOuJuz3P6npR0m041A6PScBMiWLBQSJ414jgPlswl2DI+CCWEGkS4n Jm7CMYhFcbHr8P9dZdW1n5bDqWUZrVHD3LplVegFU8effY99wjTywaObENxUlc6cUWJ+ lB6A== X-Gm-Message-State: AOAM532vxERxLN3YzVtw/SBG8nwTgdiDXI2eO+PowqwmJF0BcfhJ/+FU 2LpyWCEkWYw6R7J1xvOISgvrSazEKH263x53415G1g== X-Google-Smtp-Source: ABdhPJwxSWHS+jWe2WlBMi7czuy+aHK6+kskkhu0+UuEKMMQRlav68RJx+SLTsRlLAw+CToodEymMqDOm4/rlrSOz2k= X-Received: by 2002:a9d:76d0:: with SMTP id p16mr5424740otl.241.1628202919840; Thu, 05 Aug 2021 15:35:19 -0700 (PDT) MIME-Version: 1.0 References: <20210805205504.2647362-1-wei.huang2@amd.com> <20210805205504.2647362-2-wei.huang2@amd.com> In-Reply-To: <20210805205504.2647362-2-wei.huang2@amd.com> From: Jim Mattson Date: Thu, 5 Aug 2021 15:35:08 -0700 Message-ID: Subject: Re: [PATCH v1 1/3] KVM: x86: Convert TDP level calculation to vendor's specific code To: Wei Huang Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, vkuznets@redhat.com, seanjc@google.com, wanpengli@tencent.com, joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, Aug 5, 2021 at 1:55 PM Wei Huang wrote: > > This design assumes that all x86 CPUs have the flexibility of changing the nested page table level different from host CPU. I can't even parse this sentence. What are you trying to say here?