From patchwork Wed Nov 24 12:20:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lai Jiangshan X-Patchwork-Id: 12636945 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 B88DBC433EF for ; Wed, 24 Nov 2021 13:47:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354371AbhKXNu1 (ORCPT ); Wed, 24 Nov 2021 08:50:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354190AbhKXNs6 (ORCPT ); Wed, 24 Nov 2021 08:48:58 -0500 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31DF8C04CCA6; Wed, 24 Nov 2021 04:22:14 -0800 (PST) Received: by mail-pf1-x432.google.com with SMTP id o4so2412614pfp.13; Wed, 24 Nov 2021 04:22:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OXQJ/Hg7JktHdh34i19iwQxJ93YDj8UHhHLVZ7kWpcY=; b=XEi4y/CAQgVlQVCvCubc1j39iVAT/KctP+Zr+IKXxwujt30nlQVOPkresY6/jtkF2t f4AfqIJLxHQ0czBKFg7m9gAOPskFijLKFcO21vfPmhsCZ6pHbnrU5Sp9ug4RdqTIfgY3 iCpYXt8C6CpnC3gwuIFK4bG7D8bdayvB/Kg0dmfemjZpCg6zm3FrjpBhkvb47j73NDd0 QU6ZaHr+YraYS/I9lYWdV7RE4O2Z9cLJ+JUY1IUjf8zHEMWkoICsFbhI5GF6RmCNi98O pV7aI1BpjBB1SiBXG5MZvWngcbKliSX4E3tdGR/ZzIl5eHV6GNhU5aWVf+xXaC2KSEqX 1MLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OXQJ/Hg7JktHdh34i19iwQxJ93YDj8UHhHLVZ7kWpcY=; b=6/QnUzx0eJScdTl7fnOYOblLLGqJQtXWbrsxDZlxzfGynwCWw+gs40SN3KMjdha1Lj ZPM/sIau2OuuKnjx4DytAlpB8PmPIVhs/PBhLvGxgV1EFv5tACfc36yIpltbm/cMGZqm HGoKKzsKyZF9yjPX6nG89PP2VDgVHEysSTo0qfMvmGBAPhYQbmOmshxw9Yv1vP2WCDRw TQF9B8DuXrHaUWKUq8iGGq7vSdXx9xxZiybwkTHWZYyDNgAktFR/Vm1W0NWSpj0lr7Sr LjmDMGIxLPEU/JTNhDWLHEY8OW1aDEVrFXs5yKaPexNYmsqjik5d6RZ7JSYnUBmsVdl6 s3dw== X-Gm-Message-State: AOAM530jgPAoGTGkNIC4EhS55BBqavKImev6bK3y2AMZf8Ts/dfgBTT7 teuiYrfDQFSUcgNkeMLK9jvVip+gyjI= X-Google-Smtp-Source: ABdhPJxxXqJmN5iCp4ZmgmlA4C44r8063lAnHxAVKEynSAwi+2QYkAON4RiveU4qNwQM6ZOj2W+XjQ== X-Received: by 2002:a05:6a00:1584:b0:49f:e5dd:f904 with SMTP id u4-20020a056a00158400b0049fe5ddf904mr5654163pfk.55.1637756533595; Wed, 24 Nov 2021 04:22:13 -0800 (PST) Received: from localhost ([198.11.178.15]) by smtp.gmail.com with ESMTPSA id t13sm16416367pfl.98.2021.11.24.04.22.12 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Nov 2021 04:22:13 -0800 (PST) From: Lai Jiangshan To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, Lai Jiangshan , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Subject: [PATCH 12/12] KVM: X86: Walk shadow page starting with shadow_root_level Date: Wed, 24 Nov 2021 20:20:54 +0800 Message-Id: <20211124122055.64424-13-jiangshanlai@gmail.com> X-Mailer: git-send-email 2.19.1.6.gb485710b In-Reply-To: <20211124122055.64424-1-jiangshanlai@gmail.com> References: <20211124122055.64424-1-jiangshanlai@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Lai Jiangshan Walking from the root page of the shadow page table should start with the level of the shadow page table: shadow_root_level. Also change a small defect in audit_mappings(), it is believed that the current walking level is more valuable to print. Signed-off-by: Lai Jiangshan --- arch/x86/kvm/mmu/mmu_audit.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/mmu/mmu_audit.c b/arch/x86/kvm/mmu/mmu_audit.c index 9e7dcf999f08..6bbbf85b3e46 100644 --- a/arch/x86/kvm/mmu/mmu_audit.c +++ b/arch/x86/kvm/mmu/mmu_audit.c @@ -63,7 +63,7 @@ static void mmu_spte_walk(struct kvm_vcpu *vcpu, inspect_spte_fn fn) hpa_t root = vcpu->arch.mmu->root_hpa; sp = to_shadow_page(root); - __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->root_level); + __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->shadow_root_level); return; } @@ -119,8 +119,7 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level) hpa = pfn << PAGE_SHIFT; if ((*sptep & PT64_BASE_ADDR_MASK) != hpa) audit_printk(vcpu->kvm, "levels %d pfn %llx hpa %llx " - "ent %llxn", vcpu->arch.mmu->root_level, pfn, - hpa, *sptep); + "ent %llxn", level, pfn, hpa, *sptep); } static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)