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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HK_RANDOM_FROM,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 65B62C433DF for ; Thu, 9 Jul 2020 04:34:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D4E920674 for ; Thu, 9 Jul 2020 04:34:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726306AbgGIEeb (ORCPT ); Thu, 9 Jul 2020 00:34:31 -0400 Received: from mga14.intel.com ([192.55.52.115]:10037 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726064AbgGIEeb (ORCPT ); Thu, 9 Jul 2020 00:34:31 -0400 IronPort-SDR: Gj3ggboWHNZSWnv8pg+XXRCNCpFh4iQeOuD3sxXAzoiJonQoyML6bsyAN46uWl6QIVKD52MVIL ynmX0WHudFUw== X-IronPort-AV: E=McAfee;i="6000,8403,9676"; a="147011556" X-IronPort-AV: E=Sophos;i="5.75,330,1589266800"; d="scan'208";a="147011556" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2020 21:34:30 -0700 IronPort-SDR: ekUZALqdUvV1jJuznU5aco34cHuYOTYFD60rr7O6jG2ufY3GB3FktmuLqvaODwL00QGujbarF2 HYPmkHnL+xDg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,330,1589266800"; d="scan'208";a="297942856" Received: from lxy-dell.sh.intel.com ([10.239.159.21]) by orsmga002.jf.intel.com with ESMTP; 08 Jul 2020 21:34:27 -0700 From: Xiaoyao Li To: Paolo Bonzini , Sean Christopherson Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Xiaoyao Li Subject: [PATCH v4 0/5] Refactor handling flow of KVM_SET_CPUID* Date: Thu, 9 Jul 2020 12:34:21 +0800 Message-Id: <20200709043426.92712-1-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.18.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4 Patches of v3 has been queued into kvm/queue branch. This v4 contains the rest to refactor the flow of KVM_SET_CPUID* as: 1. cpuid check: check if userspace provides legal CPUID settings; 2. cpuid update: Update userspace provided CPUID settings. It currently only contains kvm_update_cpuid_runtime, which updates special CPUID bits based on the vcpu state, e.g., OSXSAVE, OSPKE. In the future, we can re-introduce kvm_update_cpuid() if KVM needs to force on/off some bits. 3. update vcpu states: Update vcpu states/settings based on the final updated CPUID settings. v4: - remove 4 queued patches - rebased to kvm/queue: c16ced9cc67a "x86/kvm/vmx: Use native read/write_cr2()" - fix one bug in v3 to call kvfree(cpuid_entries) in kvm_vcpu_ioctl_set_cpuid() - rename "update_vcpu_model" to "vcpu_after_set_cpuid" [Paolo] - Add a new patch to extrace kvm_update_cpuid_runtime() v3: https://lkml.kernel.org/r/20200708065054.19713-1-xiaoyao.li@intel.com - Add a note in KVM api doc to state the previous CPUID configuration is not reliable if current KVM_SET_CPUID* fails [Jim] - Adjust Patch 2 to reduce code churn [Sean] - Commit message refine to add more justification [Sean] - Add a new patch 7 v2: https://lkml.kernel.org/r/20200623115816.24132-1-xiaoyao.li@intel.com - rebase to kvm/queue: a037ff353ba6 ("Merge branch 'kvm-master' into HEAD") - change the name of kvm_update_state_based_on_cpuid() to kvm_update_vcpu_model() [Sean] - Add patch 5 to rename kvm_x86_ops.cpuid_date() to kvm_x86_ops.update_vcpu_model() v1: https://lkml.kernel.org/r/20200529085545.29242-1-xiaoyao.li@intel.com Xiaoyao Li (5): KVM: x86: Introduce kvm_check_cpuid() KVM: x86: Extract kvm_update_cpuid_runtime() from kvm_update_cpuid() KVM: x86: Rename kvm_update_cpuid() to kvm_vcpu_after_set_cpuid() KVM: x86: Rename cpuid_update() callback to vcpu_after_set_cpuid() KVM: x86: Move kvm_x86_ops.vcpu_after_set_cpuid() into kvm_vcpu_after_set_cpuid() arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/cpuid.c | 99 +++++++++++++++++++++------------ arch/x86/kvm/cpuid.h | 2 +- arch/x86/kvm/lapic.c | 2 +- arch/x86/kvm/svm/svm.c | 4 +- arch/x86/kvm/vmx/nested.c | 3 +- arch/x86/kvm/vmx/vmx.c | 4 +- arch/x86/kvm/x86.c | 10 ++-- 8 files changed, 76 insertions(+), 50 deletions(-) -- 2.18.4