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=-6.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 81932C352BE for ; Fri, 17 Apr 2020 09:52:56 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5097721D94 for ; Fri, 17 Apr 2020 09:52:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=xen.org header.i=@xen.org header.b="D3+GJWuL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5097721D94 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jPNft-0000UJ-3c; Fri, 17 Apr 2020 09:52:41 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jPNfs-0000Tf-1F for xen-devel@lists.xenproject.org; Fri, 17 Apr 2020 09:52:40 +0000 X-Inumbo-ID: 24f1209e-8091-11ea-8c9b-12813bfff9fa Received: from mail.xenproject.org (unknown [104.130.215.37]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 24f1209e-8091-11ea-8c9b-12813bfff9fa; Fri, 17 Apr 2020 09:52:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Dfu+OgKnJzFWoXe/gPFe0obtWomHwJiB46S0uhovLc0=; b=D3+GJWuLGIwR19dKVk0QfvNpEP cq5z41eQ+J/4T7c2UgY0l1mUsBfDgyPYxRoCHvFEVty/RdmTdnBAeHoDv2QLHpo989tqmXDP8/zq8 aqAaX/Nm3UKdNTMnSmr4X/cLjNmWJY6ox7HCtSFN9clvlm85ITsPGB8cccDyzXW+xf+w=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jPNfe-0002g8-Aj; Fri, 17 Apr 2020 09:52:26 +0000 Received: from 54-240-197-227.amazon.com ([54.240.197.227] helo=u1bbd043a57dd5a.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1jPNfe-000304-15; Fri, 17 Apr 2020 09:52:26 +0000 From: Hongyan Xia To: xen-devel@lists.xenproject.org Subject: [PATCH 6/6] x86/pv: map and unmap page table in dom0_construct_pv Date: Fri, 17 Apr 2020 10:52:08 +0100 Message-Id: <18fda6bdeb4f20bf2272503e45c7c420e51673ac.1587116799.git.hongyxia@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , julien@xen.org, Wei Liu , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Wei Liu Signed-off-by: Wei Liu Signed-off-by: Hongyan Xia --- xen/arch/x86/pv/dom0_build.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c index 28a939b68a..a03f0501ab 100644 --- a/xen/arch/x86/pv/dom0_build.c +++ b/xen/arch/x86/pv/dom0_build.c @@ -677,6 +677,8 @@ int __init dom0_construct_pv(struct domain *d, if ( is_pv_32bit_domain(d) ) { + l2_pgentry_t *l2t; + /* Ensure the first four L3 entries are all populated. */ for ( i = 0, l3tab = l3start; i < 4; ++i, ++l3tab ) { @@ -691,7 +693,9 @@ int __init dom0_construct_pv(struct domain *d, l3e_get_page(*l3tab)->u.inuse.type_info |= PGT_pae_xen_l2; } - init_xen_pae_l2_slots(l3e_to_l2e(l3start[3]), d); + l2t = map_l2t_from_l3e(l3start[3]); + init_xen_pae_l2_slots(l2t, d); + unmap_domain_page(l2t); } /* Pages that are part of page tables must be read only. */ -- 2.24.1.AMZN