From patchwork Tue Aug 1 00:21:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingwei Zhang X-Patchwork-Id: 13335620 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 935E1C04A94 for ; Tue, 1 Aug 2023 00:21:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231220AbjHAAVf (ORCPT ); Mon, 31 Jul 2023 20:21:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231197AbjHAAVd (ORCPT ); Mon, 31 Jul 2023 20:21:33 -0400 Received: from mail-pg1-x549.google.com (mail-pg1-x549.google.com [IPv6:2607:f8b0:4864:20::549]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2112D19A4 for ; Mon, 31 Jul 2023 17:21:32 -0700 (PDT) Received: by mail-pg1-x549.google.com with SMTP id 41be03b00d2f7-55be4f03661so5207964a12.1 for ; Mon, 31 Jul 2023 17:21:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1690849291; x=1691454091; 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=2V2qqbRtJdIF4yKoul1PG5FvBTRojVE4noGz8EUUEGo=; b=b4gXIVWX4cTKAZEBzuS9bcuTAIwnIpR66S3yHkHBzJg6Pqk6/twID1GBjAw9sqMNEe sr8t7BYV6mty7CFn9oOUry++ndP3gel1ZBA8n433pUcnMmtKavpQiAYhxdjtq1zNP+qW A8K77tu+LeGtGiHgEOpdG7tDsHmKWquXFI6tAAxOsBTLMioIR2PHsAOh+VW6BFFxkxcA 9CrK1F/fby5iCi3/bzHMc/edGX33OcDpyrk8Q2FoI/Y4wqcJJHZfuATFIWdUgbI2RS9R GNpOA/tcOK68CMq2+Z/xSUQ1C7Fa6o9a9EpLwQSaxRB1rwWII+JOkwVx5V2Wyx1Ewdl/ ZR7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690849291; x=1691454091; 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=2V2qqbRtJdIF4yKoul1PG5FvBTRojVE4noGz8EUUEGo=; b=TGJZKAMhwCKminEJkv/rUOGOQtCHPTbJoDX4StxQ78CjYa/D+hM6cMiBXC1AUb5kHC RYPyHJafZBtYN35cI/rIxTZMNpot6kiWCyAg/zwV6CaBSxRWsIoZjE2sCm10G1Tm4joi tkUdbC5prNhaODcjcMmGSvQSykxykTYcXUhan02vcDnLhW22/lm5z9OGdfk/dXIuQMaq Ns1ISKF8iNn7r+26VpPk7qF23OCuH/O7XWdEePVoX3ne6JaPhLMqxxoXl/nZhqpXjeYE kvAW8Bswuob3cBfhlX4z66+pfGlfvY7EuqH7QcEWLMLjdGBvVyfm6Lajhah5zpNcjUdN IPCg== X-Gm-Message-State: ABy/qLYLbOqTk85PO/C9INwlsYSdV46kl0UpY/6qtqZYYxx8lbxUacKN 1p8WS53vPFj0l2rIgJgwBpET1KeMChQu X-Google-Smtp-Source: APBJJlE2zNXDzrG9zPFf9F8B6Qrdnzu1M70NsJqVru5PDje4e8hKGj6bKUmauq0mTOtpQsX6jWWyA46aK0Ss X-Received: from mizhang-super.c.googlers.com ([34.105.13.176]) (user=mizhang job=sendgmr) by 2002:a63:7e54:0:b0:564:f85:c822 with SMTP id o20-20020a637e54000000b005640f85c822mr66706pgn.8.1690849291659; Mon, 31 Jul 2023 17:21:31 -0700 (PDT) Reply-To: Mingwei Zhang Date: Tue, 1 Aug 2023 00:21:21 +0000 In-Reply-To: <20230801002127.534020-1-mizhang@google.com> Mime-Version: 1.0 References: <20230801002127.534020-1-mizhang@google.com> X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230801002127.534020-2-mizhang@google.com> Subject: [PATCH v3 1/6] KVM: Documentation: Add the missing description for guest_mode in kvm_mmu_page_role 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 , Randy Dunlap Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add the missing description for guest_mode in kvm_mmu_page_role description. guest_mode tells KVM whether a shadow page is used for the L1 or an L2. Update the missing field in documentation. 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 8364afa228ec..561efa8ec7d7 100644 --- a/Documentation/virt/kvm/x86/mmu.rst +++ b/Documentation/virt/kvm/x86/mmu.rst @@ -202,6 +202,8 @@ Shadow pages contain the following information: Is 1 if the MMU instance cannot use A/D bits. EPT did not have A/D bits before Haswell; shadow EPT page tables also cannot use A/D bits if the L1 hypervisor does not enable them. + role.guest_mode: + Indicates the shadow page is created for a nested guest. role.passthrough: The page is not backed by a guest page table, but its first entry points to one. This is set if NPT uses 5-level page tables (host