From patchwork Wed Apr 15 18:37:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongyan Xia X-Patchwork-Id: 11491811 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 89662912 for ; Wed, 15 Apr 2020 18:39:49 +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 6586520656 for ; Wed, 15 Apr 2020 18:39:49 +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="676GNLxC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6586520656 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 1jOmvF-0000F7-1W; Wed, 15 Apr 2020 18:38:05 +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 1jOmvE-0000F2-3o for xen-devel@lists.xenproject.org; Wed, 15 Apr 2020 18:38:04 +0000 X-Inumbo-ID: 3d46427c-7f48-11ea-8abf-12813bfff9fa Received: from mail.xenproject.org (unknown [104.130.215.37]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 3d46427c-7f48-11ea-8abf-12813bfff9fa; Wed, 15 Apr 2020 18:38:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=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:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=w0De8RWsimvi343iFj1mIkaonWnYYRQGzcjR5lnEr8U=; b=676GNLxCC4w4dAJ1sz8YHb3rEr p4MZuXT/tzfTWyi+QwsJxcHA1SHTJa7E7s3RYBzom1WjI75uywIPkogA/rp5RSlgMJNYCxbh+0OWq pKhozrI6Pgb08hY1YyXjVBaigSmLVhmYpazQQzxF7ePJklabIEbdKl9oOZEhXAPhSEB8=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jOmvC-00020U-LN; Wed, 15 Apr 2020 18:38:02 +0000 Received: from 54-240-197-234.amazon.com ([54.240.197.234] 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 1jOmvC-0005Md-AW; Wed, 15 Apr 2020 18:38:02 +0000 From: Hongyan Xia To: xen-devel@lists.xenproject.org Subject: [PATCH v4 0/4] use new API for Xen page tables Date: Wed, 15 Apr 2020 19:37:48 +0100 Message-Id: X-Mailer: git-send-email 2.17.1 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_Pau_?= =?utf-8?q?Monn=C3=A9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Hongyan Xia This small series is basically just rewriting functions using the new API to map and unmap PTEs. Each patch is independent. Apart from mapping and unmapping page tables, no other functional change intended. --- Changed in v4: - use _ suffix instead of prefix in macros. - use normal unmap_domain_page() for variable right before end-of-scope. Changed in v3: - address all comments in v2. - drop patch 4, since other clean-ups will make it unnecessary. Changed in v2: - I kept UNMAP_DOMAIN_PAGE() for now in v2, but I if people say in some cases it is an overkill and unmap_domain_page() should be used, I am okay with that and can make the change. - code cleanup and style fixes. - unmap as early as possible. Wei Liu (4): x86/shim: map and unmap page tables in replace_va_mapping x86_64/mm: map and unmap page tables in m2p_mapped x86_64/mm: map and unmap page tables in share_hotadd_m2p_table x86_64/mm: map and unmap page tables in destroy_m2p_mapping xen/arch/x86/pv/shim.c | 9 ++++---- xen/arch/x86/x86_64/mm.c | 44 +++++++++++++++++++++----------------- xen/include/asm-x86/page.h | 19 ++++++++++++++++ 3 files changed, 48 insertions(+), 24 deletions(-)