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=-6.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 9EE5FC4363C for ; Mon, 21 Sep 2020 18:02:40 +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 501202193E for ; Mon, 21 Sep 2020 18:02:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=xen.org header.i=@xen.org header.b="z68qRXfh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 501202193E 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 4.92) (envelope-from ) id 1kKQ8t-0003Kb-V0; Mon, 21 Sep 2020 18:02:23 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kKQ8t-0003KW-Ci for xen-devel@lists.xenproject.org; Mon, 21 Sep 2020 18:02:23 +0000 X-Inumbo-ID: 00296839-12c4-4966-8949-9937319c3bbe Received: from mail.xenproject.org (unknown [104.130.215.37]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 00296839-12c4-4966-8949-9937319c3bbe; Mon, 21 Sep 2020 18:02:22 +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; bh=f5TMY0QCCvNTqQSbI1NPeWJ+mH2I08wSho59zqqVYCQ=; b=z68qRXfh7xXZaD2dHFl2H1t3rO rKvsykZL3dRZuAiLVhRk8SGDNCzMAw08JWeteoZcP3bhNV/j8MK+BBks9kP2V+v0IjgYRhFvyiWM2 RXPm/cecQeVd3YXjWkD3CXvrLrtTzM8l6ikbkxUqoYm23IE1LxHfoMo4sfx7n49WgND0=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kKQ8r-00086x-2G; Mon, 21 Sep 2020 18:02:21 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kKQ8q-0003uk-Kn; Mon, 21 Sep 2020 18:02:20 +0000 From: Julien Grall To: xen-devel@lists.xenproject.org Cc: julien@xen.org, Julien Grall , Andrew Cooper , George Dunlap , Ian Jackson , Jan Beulich , Stefano Stabellini , Wei Liu , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Volodymyr Babchuk Subject: [PATCH v4 0/4] xen/arm: Properly disable M2P on Arm Date: Mon, 21 Sep 2020 19:02:10 +0100 Message-Id: <20200921180214.4842-1-julien@xen.org> X-Mailer: git-send-email 2.17.1 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall Hi all, Arm never supported a M2P yet there are some helpers implemented to deal with the common code. However, the implementation of mfn_to_gmfn is completely bogus. This series aims to properly disable the M2P on Arm. See patch #2 for the rationale regarding the lack of M2P on Arm. I have dropped the typesafe patches from this series to focus on just the M2P. Cheers, Julien Grall (4): xen: XENMEM_exchange should only be used/compiled for arch supporting PV guest xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call xen: Remove mfn_to_gmfn macro xen/mm: Provide dummy M2P-related helpers when !CONFIG_HAVE_M2P xen/arch/x86/Kconfig | 1 + xen/common/Kconfig | 3 +++ xen/common/domctl.c | 9 +++++++-- xen/common/memory.c | 7 +++++++ xen/include/asm-arm/domain.h | 5 +++++ xen/include/asm-arm/mm.h | 13 ------------- xen/include/asm-x86/mm.h | 5 ----- xen/include/public/domctl.h | 6 ++++++ xen/include/xen/domain.h | 12 ++++++++++++ xen/include/xen/mm.h | 13 +++++++++++++ 10 files changed, 54 insertions(+), 20 deletions(-) -- 2.17.1