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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,T_DKIMWL_WL_MED,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 64C76C07E85 for ; Fri, 7 Dec 2018 12:49:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 29AC3214DA for ; Fri, 7 Dec 2018 12:49:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=mena-vt-edu.20150623.gappssmtp.com header.i=@mena-vt-edu.20150623.gappssmtp.com header.b="ZtGj2HHQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29AC3214DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mena.vt.edu Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726205AbeLGMtc (ORCPT ); Fri, 7 Dec 2018 07:49:32 -0500 Received: from mail-wr1-f68.google.com ([209.85.221.68]:40712 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726265AbeLGMt2 (ORCPT ); Fri, 7 Dec 2018 07:49:28 -0500 Received: by mail-wr1-f68.google.com with SMTP id p4so3690692wrt.7 for ; Fri, 07 Dec 2018 04:49:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mena-vt-edu.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ibxTSM7aAfMxp0mh34e5XoCF9bu27Z34+6gCZTrPT34=; b=ZtGj2HHQ1QdQqkzxKnkhyG6zbN40ooJhtxiFxmtMZB2G6JXMbNVeLRlBclZc1ByuBt rJkGbokdWxQ0B4Z/lVF47mJXfpvZg6onuNs38evpR6F0plHgzidl0tnlt5rJTh3WpIX0 xXvr8J/Yp27UtUoFGtdUgpFJ6up0leTOytBXoBP3vyuv2whs8HO6r7g4e5dNAiOckiEq S4Jkfj+slyqpYESweAypsVAe8xa4+M+/i961soZgwCd01iqS8UtJC/jK7GFRWxJ15VKF iteVo2+659CaouRtxIESOgKb838vu10UoGWA0UJYtGjsBcL2ia6Cz6nFHafS5PeNz3tx ntcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ibxTSM7aAfMxp0mh34e5XoCF9bu27Z34+6gCZTrPT34=; b=WcGxLklkODEODaTpyaPrf/GH93gnbSXiB3NsmSsVuXLg/z4+RfaLMRDeOmVQEKphOt REeKh3XtlqZDcoswGPgi93AJJ4mePeGjpJ0f9pLmE5vonhijzu9RXXZPeX6r9fF9Bv52 tJVwEH4CeMe4UPN4c/wKLnmADLDCnq3vqhWn2hyUS8GktJTQ2OL1N8Fy6aEnpRQIfS+J Ur1+J4sVEk+FoLZu3BUECUqS5OulVGCFmkwpnvITksnR9dTAuVEhGyDkmfvDi66Dpl3R fAzs+nRT87rmcXfA2FfbI8N5Z7LrO2ldrfpocEAIK8HMO0HSaKF7UGhb8V7BQ5Y8YM/t 1+Nw== X-Gm-Message-State: AA+aEWair3PycGgHfU4VUe/SkjEFoNzhxzNCHbUtK6WyePtDbwQlghX5 pghFmjEBcL1JKqWFKxw+yUx/vw== X-Google-Smtp-Source: AFSGD/XycEJqUK3+cMbWlXGqoLuR+oFh9trApfppGt82EltYcdXfLPRSVVY6b30XONttXSMdK4nsLQ== X-Received: by 2002:adf:c846:: with SMTP id e6mr1624715wrh.243.1544186966936; Fri, 07 Dec 2018 04:49:26 -0800 (PST) Received: from localhost.localdomain ([156.213.98.90]) by smtp.gmail.com with ESMTPSA id i192sm4362949wmg.7.2018.12.07.04.49.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 07 Dec 2018 04:49:26 -0800 (PST) From: Ahmed Abd El Mawgood To: Paolo Bonzini , rkrcmar@redhat.com, Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , hpa@zytor.com, x86@kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, ahmedsoliman0x666@gmail.com, ovich00@gmail.com, kernel-hardening@lists.openwall.com, nigel.edwards@hpe.com, Boris Lukashev , Igor Stoppa Cc: Ahmed Abd El Mawgood Subject: [PATCH 08/10] KVM: X86: Port ROE_MPROTECT_CHUNK to x86 Date: Fri, 7 Dec 2018 14:48:01 +0200 Message-Id: <20181207124803.10828-9-ahmedsoliman@mena.vt.edu> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181207124803.10828-1-ahmedsoliman@mena.vt.edu> References: <20181207124803.10828-1-ahmedsoliman@mena.vt.edu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Apply d->memslot->partial_roe_bitmap to shadow page table entries too. Signed-off-by: Ahmed Abd El Mawgood --- arch/x86/kvm/roe.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/roe.c b/arch/x86/kvm/roe.c index f787106be8..700f69823b 100644 --- a/arch/x86/kvm/roe.c +++ b/arch/x86/kvm/roe.c @@ -25,11 +25,14 @@ static bool __rmap_write_protect_roe(struct kvm *kvm, struct rmap_iterator iter; bool prot; bool flush = false; + void *full_bmp = memslot->roe_bitmap; + void *part_bmp = memslot->partial_roe_bitmap; for_each_rmap_spte(rmap_head, &iter, sptep) { int idx = spte_to_gfn(sptep) - memslot->base_gfn; - prot = !test_bit(idx, memslot->roe_bitmap) && pt_protect; + prot = !(test_bit(idx, full_bmp) || test_bit(idx, part_bmp)); + prot = prot && pt_protect; flush |= spte_write_protect(sptep, prot); } return flush; -- 2.19.2