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=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 AD122C282E9 for ; Mon, 21 Jan 2019 08:14:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6FFAC2085A for ; Mon, 21 Jan 2019 08:14:13 +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="lcJa/9Go" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729341AbfAUIOL (ORCPT ); Mon, 21 Jan 2019 03:14:11 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:37000 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727980AbfAUIOK (ORCPT ); Mon, 21 Jan 2019 03:14:10 -0500 Received: by mail-wm1-f68.google.com with SMTP id g67so9768999wmd.2 for ; Mon, 21 Jan 2019 00:14:09 -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=lcJa/9GoZ/Y6WfC0bylBfI5oCVTUbuuQaazcglM7FxSXk53oJ3EwA7gQ6DK+WxiFMb Tlrgwvc736fHcfg+YAswmtczDWnSSBMIcGSSXYg6i0MRH/ZIX2y9cpGSxmZ+J63hsT4/ QTQXtg0gQ8OgWOCw2BrEXgDSkegRbpVoC0R+6nlx8MG5HL4zfx/R+JZ6gMYPKE+l1tLJ AXI8c4Qwl9aiXZE+hXoOGirioCNsW/YzcD/4+02Q9kHE3d1EMNxtT20zPoj7Mcuv0039 pK40Sk4UGAAo1eF1IXEqWJ3/lN+mYFSzRQBsmUcXjgxuNNvUwayW8QCEFaj6ijFFXHa+ HtKQ== 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=mzBWBrlJiMWZI69ljN+B9NllugdO+tmVuDf7lWCddzj4QVF3U75aecfJ6TtxbXZ3ST Z42v5FVp7lHclebi/gzwN8FqSc71NaknDT+OSdGaoFwO3dIUdYOCGPXieyRp4H+VpLn+ USBQ1QZIE+VK1pH73wDW/98omEagamFmY0MNR0E1yZ2Oq8rRtscwguKLd7yuEqhO6D4d kM9qUyORT7GKoXCBop3z4g5bUnBEoMIeAotBsn2cJoR7/1TDYmZvr2IFQPNRnkXvcuYB IFf+3NdTy6JMOaxLCW+k//MKi+5Gvo+sIHSdYSPdQprU0HkUmdwJF1NniKUBoZY0cJ3W t8+Q== X-Gm-Message-State: AJcUukdKdoyC3I2CXgwIsomYhfClYHYWv5o8zGkXLr6/Nu4oXKntLdyV frIhcNX1lW2aH2YyrIvNEiSNM9cg5Bc= X-Google-Smtp-Source: ALg8bN6p9RWZDpkENLmzoXwCtF9v6nAyN1W721G5G6yv2ozcu7srm3C8FwlQtG+MKjShLdYSf4N48A== X-Received: by 2002:a1c:9a4c:: with SMTP id c73mr23491864wme.35.1548027691743; Sun, 20 Jan 2019 15:41:31 -0800 (PST) Received: from localhost.localdomain ([156.212.82.83]) by smtp.gmail.com with ESMTPSA id e9sm76576753wro.16.2019.01.20.15.41.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 20 Jan 2019 15:41:31 -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: [RESEND PATCH V8 08/11] KVM: X86: Port ROE_MPROTECT_CHUNK to x86 Date: Mon, 21 Jan 2019 01:39:37 +0200 Message-Id: <20190120233940.15282-9-ahmedsoliman@mena.vt.edu> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190120233940.15282-1-ahmedsoliman@mena.vt.edu> References: <20190120233940.15282-1-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