From patchwork Mon Jun 26 18:20:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingwei Zhang X-Patchwork-Id: 113093 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp7692114vqr; Mon, 26 Jun 2023 12:02:36 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7TvwuItDppAt62My7/53lP6PtpjYVJxtl+b+UGRHo2OTGI46W+ly700ts6q1rh1/4HaU86 X-Received: by 2002:a19:2d19:0:b0:4f8:6dbf:401d with SMTP id k25-20020a192d19000000b004f86dbf401dmr13625442lfj.57.1687806156513; Mon, 26 Jun 2023 12:02:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687806156; cv=none; d=google.com; s=arc-20160816; b=KcTfcfMiTZNEq6VH94EvzWJju5gq7+uJ1tCouBGu29in3e5QG+5EJhgN1DamjdpUU4 TZzxPgaG8keYHWkScivNYvanBbY/XfR6glihxbAV+9AAULTykIXkvQMSnnBm8hSFSyHw qKXSluMZ7pUtXvRv47Els6OoALgTaPaTd1zTMxdbJSA+QTjFdjRbVM11zm9ET2cQvS7R TALWcfaqfM9Zc5Dgy4RxJOh+i0YJHzR+fkcq/zop01WJTRtGKjas9m4EF1UnwOE/jU7P V3AbgsKf0ozvywlGwsz9fi5Y/W2jxBztXUqIyyuhO3pI5i0/m9cD3u875NxYlduoAXGF gH7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:reply-to:dkim-signature; bh=ImRtxMlYFksXesGcg5ZEwinCVjK+1eznyzb1zuEq5IA=; fh=4e3puReJ7DjwMG6rJqHJp2nX/a/7QqKKhs1FjQcufg4=; b=uEL9hu/MctjHxSPmxUCKX8VtxD0d6PT0BVOQ86X3XbzdyCuv91wNceBid65vRXjtON Bic5QYo261sEbs7/T143Og5ugiG+3s0+f9A5QtTRi8Cx1gnLDLY8HNpA4FJ4i2Da0X6y wy6TaUgH69nmaqB9sAUd8hBSffHhTQseWvZUmdhptYhTVDhH1AT6WnI6aulF933HyPqH MDpiZqdhDe4a7h5tTqXWXAcnQE4o3qGpbJCtLQUPZgamU8DaCV0CeyFRj2YVdqWnwDU2 VbwzsWdP+jwe0m+PsypjXuBAjN7JSg2pV8r6n1w4SeYSZMjfuuOJ0/vHUtlGfA2vC4rE hOKg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20221208 header.b=Tdy68PWD; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id v21-20020aa7d815000000b0051be20673a0si3156273edq.211.2023.06.26.12.01.47; Mon, 26 Jun 2023 12:02:36 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20221208 header.b=Tdy68PWD; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231799AbjFZSUr (ORCPT + 99 others); Mon, 26 Jun 2023 14:20:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35062 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231720AbjFZSUi (ORCPT ); Mon, 26 Jun 2023 14:20:38 -0400 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 999EC10F5 for ; Mon, 26 Jun 2023 11:20:31 -0700 (PDT) Received: by mail-pf1-x44a.google.com with SMTP id d2e1a72fcca58-65026629c1eso1577640b3a.0 for ; Mon, 26 Jun 2023 11:20:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687803631; x=1690395631; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=ImRtxMlYFksXesGcg5ZEwinCVjK+1eznyzb1zuEq5IA=; b=Tdy68PWDHkjiU3GFNBhBXBkqsqiqqWAGIXJ/q4OjjptAOSfM5EY42+vLqgA8D8nXAS clXF5BXCK0DJ71Va0Wz2nmU5U75ABUVVNq5Soj0T8VDpURZ3pOkkmiT0d6CAOe1ulwju zjeQJ1DH2VB+yypRy/vE4EAQw+QA0GV5wZ7PWldp9hocIQmtrsxFMYgGiycX6CpHqZ+C 255CmNUW5d30tex1Crn09VGfnKT0f9g0h5xWaV48MbkB4xvLFFnOQMwOlGyQja8q+FmG 9OnaPlIw+hwtf7bPt6nXd4VP1MQrnjlW8kFoiViD+b4ievS/+PZxZqEjIARqxF5GbQdU vW4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687803631; x=1690395631; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ImRtxMlYFksXesGcg5ZEwinCVjK+1eznyzb1zuEq5IA=; b=XbP76xRJk+LFdjMwm8bXbK1W8c+J89xlWT8zrhBRz4IomRNTwreb3hHtc33ThZhvnN vSyEkNKUnBPzmivVCEIhuu8rYQfBjz+bPBjTIttdLNeTcNjpKuD/OHCQFGHW+nmTk0pp M3bZ9T4C7t+AnOcYhepUc74lqX0+ag77ZYk8HDZCqr76LSsxXGSdnH4f/Suv2ppw6sAw i+YSKidC/81OIpOGUdNLMeHxJDWmhAGUWscvpXdP4Bqte71KM805BZ0Mx1RU+1k5pzCC Cfph8N/rqJAr1e7GH+ru2mXf7b0o4VatfjHFXJjZzLcJTXlxvgpvpjEI1GLXryFHU9nq WBXA== X-Gm-Message-State: AC+VfDz4DwpA3+8s8IE29fBQbWW0GFeYs4H0frgcOZEx5RORgoZbkyoI 3f+cuhPypZTaYjyH+GfQJlIdOPmN+wSv X-Received: from mizhang-super.c.googlers.com ([34.105.13.176]) (user=mizhang job=sendgmr) by 2002:a05:6a00:2d0f:b0:675:b734:d30f with SMTP id fa15-20020a056a002d0f00b00675b734d30fmr1001451pfb.4.1687803631156; Mon, 26 Jun 2023 11:20:31 -0700 (PDT) Reply-To: Mingwei Zhang Date: Mon, 26 Jun 2023 18:20:16 +0000 In-Reply-To: <20230626182016.4127366-1-mizhang@google.com> Mime-Version: 1.0 References: <20230626182016.4127366-1-mizhang@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Message-ID: <20230626182016.4127366-7-mizhang@google.com> Subject: [PATCH v2 6/6] KVM: Documentation: Add the missing description for tdp_mmu_page into kvm_mmu_page From: Mingwei Zhang To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Mingwei Zhang , Kai Huang , Jim Mattson , David Matlack , Ben Gardon , Xu Yilun , Zhi Wang X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769793028260530916?= X-GMAIL-MSGID: =?utf-8?q?1769793028260530916?= Add the description for tdp_mmu_page into kvm_mmu_page description. tdp_mmu_page is a field to differentiate shadow pages from TDP MMU and non-TDP MMU. When TDP MMU is enabled, sp->tdp_mmu_page=1 indicates a shadow page for L1, while sp->tdp_mmu_page=0 indicates a shadow page for an L2. When TDP MMU is disabled, sp->tdp_mmu_page is always 0. So update the doc to reflect the information. Signed-off-by: Mingwei Zhang Reviewed-by: Kai Huang --- Documentation/virt/kvm/x86/mmu.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index cc4bd190c93d..678dc0260a54 100644 --- a/Documentation/virt/kvm/x86/mmu.rst +++ b/Documentation/virt/kvm/x86/mmu.rst @@ -278,6 +278,8 @@ Shadow pages contain the following information: since the last time the page table was actually used; if emulation is triggered too frequently on this page, KVM will unmap the page to avoid emulation in the future. + tdp_mmu_page: + Is 1 if the shadow page is a TDP MMU page. Reverse map ===========