From patchwork Sun Jun 18 00:08:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingwei Zhang X-Patchwork-Id: 13283746 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 3802BEB64D9 for ; Sun, 18 Jun 2023 00:09:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231709AbjFRAJR (ORCPT ); Sat, 17 Jun 2023 20:09:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230213AbjFRAJO (ORCPT ); Sat, 17 Jun 2023 20:09:14 -0400 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0F65170B for ; Sat, 17 Jun 2023 17:09:13 -0700 (PDT) Received: by mail-pl1-x649.google.com with SMTP id d9443c01a7336-1b549e81cc1so1553895ad.2 for ; Sat, 17 Jun 2023 17:09:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687046953; x=1689638953; 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=VS80TIN3Apx7Lv9ngje3zYu1jx02+rpCr9yV1s94q+g=; b=qsV0MFwzdd4/C7i0HHJ9CBkbmMVR7hwOd2cmA+0KzTHzNh9ELEVms5TTB/4dzHUDyy gGGdEsHTFl85eB0vuIJz6s3e58HYKqZmv2eJfSw+XXEzHrnK15RPIln+eN/w3Mzlec61 nqju5F/mk+3B7UGborz8J3MyzvFeWabttyLOn3D+a0ziu6+Xt2aVdnvkedR5h4IlvrhX Y3FuKXEauGt+lxIdBa18cGzxxXjmubFYp/Y+G3XWoTZOCVdaFMpsjXlNOe1u6FIM6l0U DxJKRaifxq5yPP+xvMAo0t85Tci89KUCc436mq+go+r+m0TnblxwU7rIG/1LtDaTjYR9 hoBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687046953; x=1689638953; 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=VS80TIN3Apx7Lv9ngje3zYu1jx02+rpCr9yV1s94q+g=; b=YbicZgmLn3uItJoMnBsZhT0QOPJFQMkPQwZlCohNGBsymCHoz/XHX/8D8cGhc8lh8a qMFuER2GuxeZmX3drWeoSnw4bhN9HvBLsdnpfWFde5EwZRIGiUMDrsnT3y0RW7nsv1+l W7ewgGDbGr8GNx0rLaRyTuX67wIM34fLPyLdeCvXVIv22qEqX2GhgnWNyDG1Oua8XxI1 Nefrpvr6VuCb0wL4bV5Bb0HGctLfKRwOkG6VtiWFtHK5Tp6NnoRfhgZgjB4jMSG/UoOY b3lNegTwsKUaBhQCt8PB+c05SBmNi6+489ADQtIB6zWjSGq/IYjk2QwE2rDpDk7q7Wiy bPpA== X-Gm-Message-State: AC+VfDwYq6zlSECD21hY55oHvevhWVmuYFeGr6jB4Y6RN66elBGGPTQU UyO9UCUHMafuofBY3cKAjSZbiwxtNWS+ X-Google-Smtp-Source: ACHHUZ7FUaWe91QusDNXC7G8USu5P3g7Xm5fFQ3geWg+aIW+9MIzFHs89tza+DkgLMXcq6FDjqk2LCkqQA35 X-Received: from mizhang-super.c.googlers.com ([34.105.13.176]) (user=mizhang job=sendgmr) by 2002:a63:ed06:0:b0:546:a389:b815 with SMTP id d6-20020a63ed06000000b00546a389b815mr385438pgi.1.1687046953388; Sat, 17 Jun 2023 17:09:13 -0700 (PDT) Reply-To: Mingwei Zhang Date: Sun, 18 Jun 2023 00:08:51 +0000 In-Reply-To: <20230618000856.1714902-1-mizhang@google.com> Mime-Version: 1.0 References: <20230618000856.1714902-1-mizhang@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Message-ID: <20230618000856.1714902-2-mizhang@google.com> Subject: [PATCH 1/6] KVM: Documentation: Add the missing 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 , Jim Mattson , David Matlack , Ben Gardon Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add the missing 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