From patchwork Wed Feb 26 20:22:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Cooper X-Patchwork-Id: 11407181 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 945E614B4 for ; Wed, 26 Feb 2020 20:23:51 +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 6DDA02072D for ; Wed, 26 Feb 2020 20:23:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=citrix.com header.i=@citrix.com header.b="N2p6fXnK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6DDA02072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=citrix.com Authentication-Results: mail.kernel.org; spf=none 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 1j73Cx-00042X-Pw; Wed, 26 Feb 2020 20:23:03 +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 1j73Cx-00042B-0z for xen-devel@lists.xenproject.org; Wed, 26 Feb 2020 20:23:03 +0000 X-Inumbo-ID: b6be91d4-58d5-11ea-94dc-12813bfff9fa Received: from esa3.hc3370-68.iphmx.com (unknown [216.71.145.155]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id b6be91d4-58d5-11ea-94dc-12813bfff9fa; Wed, 26 Feb 2020 20:22:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1582748551; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=gL2fuzebQK/5SMD2qlY+DazyVmnMtHRGX3F1hLOS3GY=; b=N2p6fXnKuJ4ectSC99criJsL5ktsAolLeAeeDGfaBBlciMuYIw42Si0F IUtY99MRYWNXjXF96TxeqrezWN6EsS1ECDu06NpcYio17sL6uPhqAC0SL RHFkrSLD1BmTmtbXgsIzhLLw0WQD1JnyylLe3pyEbMROFbdKBt97lX6rj Y=; Authentication-Results: esa3.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none; spf=None smtp.pra=andrew.cooper3@citrix.com; spf=Pass smtp.mailfrom=Andrew.Cooper3@citrix.com; spf=None smtp.helo=postmaster@mail.citrix.com Received-SPF: None (esa3.hc3370-68.iphmx.com: no sender authenticity information available from domain of andrew.cooper3@citrix.com) identity=pra; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="andrew.cooper3@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa3.hc3370-68.iphmx.com: domain of Andrew.Cooper3@citrix.com designates 162.221.158.21 as permitted sender) identity=mailfrom; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="Andrew.Cooper3@citrix.com"; x-conformance=sidf_compatible; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:209.167.231.154 ip4:178.63.86.133 ip4:195.66.111.40/30 ip4:85.115.9.32/28 ip4:199.102.83.4 ip4:192.28.146.160 ip4:192.28.146.107 ip4:216.52.6.88 ip4:216.52.6.188 ip4:162.221.158.21 ip4:162.221.156.83 ip4:168.245.78.127 ~all" Received-SPF: None (esa3.hc3370-68.iphmx.com: no sender authenticity information available from domain of postmaster@mail.citrix.com) identity=helo; client-ip=162.221.158.21; receiver=esa3.hc3370-68.iphmx.com; envelope-from="Andrew.Cooper3@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: 7hH9lOIIqN7dtDPVh38U6UFpT3sEHN1oqnSAnvC0nqx6xMj5flNIfhELmRZ3QRp2uEgZvpAIuq lKevgTQW6dmEBtwn2REHK75BihotGcgBFgYQtHcc/CefYN39cdOaLbU8fhuktaxmTsTQf6wgqp 2/PrVXNyWWdqXJwzqDAEfP5+NXgyOc2JrzJKIqZ2nYxDvsoRkFphEJP7QZU2WyEqHg2Y2KAlps WYFi7NN6d6x6H3ufNprtvpp2ivgeE2FP7vqSdbzvCORMr1QbDdZtitBoNoOlzYPSHWnkUQh5ma L6s= X-SBRS: 2.7 X-MesageID: 13047650 X-Ironport-Server: esa3.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.70,489,1574139600"; d="scan'208";a="13047650" From: Andrew Cooper To: Xen-devel Date: Wed, 26 Feb 2020 20:22:11 +0000 Message-ID: <20200226202221.6555-1-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Subject: [Xen-devel] [PATCH 00/10] x86: Default vs Max policies 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 , Wei Liu , Jan Beulich , =?utf-8?q?Roger_Pau_Monn=C3=A9?= Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" This series builds on several years worth of building blocks to finally create a real distinction between default and max policies. See the final patch for a concrete example. Everything but the final patch is ready to go in now. The final patch depends on the still-in-review migration series, to provide suitable backwards compatilbity for VMs coming from older versions of Xen. Andrew Cooper (10): x86/sysctl: Don't return cpu policy data for compiled-out support (2) tools/libxc: Simplify xc_get_static_cpu_featuremask() x86/gen-cpuid: Rework internal logic to ease future changes x86/gen-cpuid: Create max and default variations of INIT_*_FEATURES x86/msr: Compile out unused logic/objects x86/msr: Introduce and use default MSR policies x86/cpuid: Compile out unused logic/objects x86/cpuid: Introduce and use default CPUID policies x86/gen-cpuid: Distinguish default vs max in feature annotations x86/hvm: Do not enable MPX by default tools/libxc/include/xenctrl.h | 10 ++- tools/libxc/xc_cpuid_x86.c | 55 +++++-------- tools/misc/xen-cpuid.c | 35 ++++++--- xen/arch/x86/cpuid.c | 118 ++++++++++++++++++++++------ xen/arch/x86/msr.c | 62 +++++++++++---- xen/arch/x86/sysctl.c | 25 ++++-- xen/include/asm-x86/cpuid.h | 3 +- xen/include/asm-x86/msr.h | 4 +- xen/include/public/arch-x86/cpufeatureset.h | 4 +- xen/include/public/sysctl.h | 2 + xen/tools/gen-cpuid.py | 100 ++++++++++++----------- 11 files changed, 268 insertions(+), 150 deletions(-)