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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 A8A04C433E1 for ; Fri, 21 Aug 2020 18:59:27 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 4C19F20714 for ; Fri, 21 Aug 2020 18:59:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=anastas.io header.i=@anastas.io header.b="UryH8jvs" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4C19F20714 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=anastas.io Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BY9mY25RczDrKh for ; Sat, 22 Aug 2020 04:59:25 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=anastas.io (client-ip=104.248.188.109; helo=alpha.anastas.io; envelope-from=shawn@anastas.io; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=anastas.io Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=anastas.io header.i=@anastas.io header.a=rsa-sha256 header.s=mail header.b=UryH8jvs; dkim-atps=neutral Received: from alpha.anastas.io (alpha.anastas.io [104.248.188.109]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BY9hj0ckKzDrH6 for ; Sat, 22 Aug 2020 04:56:04 +1000 (AEST) Received: from authenticated-user (alpha.anastas.io [104.248.188.109]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by alpha.anastas.io (Postfix) with ESMTPSA id B3E167EC09; Fri, 21 Aug 2020 13:56:02 -0500 (CDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=anastas.io; s=mail; t=1598036163; bh=xA0mm6NPFMrcszqwEO3AkZw2UQRCjKyu8EhvnHTSX6g=; h=From:To:Cc:Subject:Date:From; b=UryH8jvsi750sSqvu5+xvxVnt969zQzXFFLTpyLWC9dnhWfk3SUz9wBhG5Y/b2fZP CcjNqAlJbZpC1cKdggwtVHtBf/pwm+BHY3UmrgITG1aOfCTuOhUNm0zuLhWlxv0QaC RJPe7RpWnllVRZsFUfGlc8lofy5++18C92GybFPQxTHtXxIDus5fNCBFyy/7O9cjDE TRqOmlI1MNpzC3YWE5JQHlMrVAh8PL1byvmpWFYF1Dusx/uDI/em7ZuyfROZtsSok5 VX69+/67s+KHTJsPFwUh5jTI2pjna6cl6FwurB0ig2lKdO/WLEFSSBaxRTwBxIGHew 6sIGKa7bblxcA== From: Shawn Anastasio To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 0/3] Reintroduce PROT_SAO Date: Fri, 21 Aug 2020 13:55:55 -0500 Message-Id: <20200821185558.35561-1-shawn@anastas.io> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Changes in v2: - Update prot_sao selftest to skip ISA 3.1 This set re-introduces the PROT_SAO prot flag removed in Commit 5c9fa16e8abd ("powerpc/64s: Remove PROT_SAO support"). To address concerns regarding live migration of guests using SAO to P10 hosts without SAO support, the flag is disabled by default in LPARs. A new config option, PPC_PROT_SAO_LPAR was added to allow users to explicitly enable it if they will not be running in an environment where this is a conern. Shawn Anastasio (3): Revert "powerpc/64s: Remove PROT_SAO support" powerpc/64s: Disallow PROT_SAO in LPARs by default selftests/powerpc: Update PROT_SAO test to skip ISA 3.1 arch/powerpc/Kconfig | 12 ++++++ arch/powerpc/include/asm/book3s/64/pgtable.h | 8 ++-- arch/powerpc/include/asm/cputable.h | 10 ++--- arch/powerpc/include/asm/mman.h | 31 +++++++++++-- arch/powerpc/include/asm/nohash/64/pgtable.h | 2 + arch/powerpc/include/uapi/asm/mman.h | 2 +- arch/powerpc/kernel/dt_cpu_ftrs.c | 2 +- arch/powerpc/mm/book3s64/hash_utils.c | 2 + include/linux/mm.h | 2 + include/trace/events/mmflags.h | 2 + mm/ksm.c | 4 ++ tools/testing/selftests/powerpc/mm/.gitignore | 1 + tools/testing/selftests/powerpc/mm/Makefile | 4 +- tools/testing/selftests/powerpc/mm/prot_sao.c | 43 +++++++++++++++++++ 14 files changed, 108 insertions(+), 17 deletions(-) create mode 100644 tools/testing/selftests/powerpc/mm/prot_sao.c -- 2.28.0