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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 4308EC388F9 for ; Tue, 27 Oct 2020 21:24:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EFBA0218AC for ; Tue, 27 Oct 2020 21:24:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S373880AbgJ0VYO (ORCPT ); Tue, 27 Oct 2020 17:24:14 -0400 Received: from mga02.intel.com ([134.134.136.20]:56185 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S373803AbgJ0VXz (ORCPT ); Tue, 27 Oct 2020 17:23:55 -0400 IronPort-SDR: xym8sBF/GXmtfisPENrn1CK8QwrHfQwrZZt71N3mHutqWWU2++1lCpODNXHFSE+scDYCpgOcet dmdMhXiAtBYw== X-IronPort-AV: E=McAfee;i="6000,8403,9787"; a="155133712" X-IronPort-AV: E=Sophos;i="5.77,424,1596524400"; d="scan'208";a="155133712" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2020 14:23:51 -0700 IronPort-SDR: wuwGtIlXxI9tKeWTdszwyjGPEbWXNONNeIX6qxWIC5MhE4S5EPqNSGWBQ3lFeoeSMz2yVyny12 f5J1NyTWku9w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,424,1596524400"; d="scan'208";a="524886402" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.160]) by fmsmga006.fm.intel.com with ESMTP; 27 Oct 2020 14:23:51 -0700 From: Sean Christopherson To: Paolo Bonzini Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 09/11] KVM: VMX: Define Hyper-V paravirt TLB flush fields iff Hyper-V is enabled Date: Tue, 27 Oct 2020 14:23:44 -0700 Message-Id: <20201027212346.23409-10-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201027212346.23409-1-sean.j.christopherson@intel.com> References: <20201027212346.23409-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ifdef away the Hyper-V specific fields in structs kvm_vmx and vcpu_vmx as each field has only a single reference outside of the struct itself that isn't already wrapped in ifdeffery (and both are initialization). vcpu_vmx.ept_pointer in particular should be wrapped as it is valid if and only if Hyper-v is active, i.e. non-Hyper-V code cannot rely on it to actually track the current EPTP (without additional code changes). Signed-off-by: Sean Christopherson --- arch/x86/kvm/vmx/vmx.c | 5 ++++- arch/x86/kvm/vmx/vmx.h | 4 ++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index b684f45d6a78..5b7c5b2fd2c7 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -6955,8 +6955,9 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu) vmx->pi_desc.nv = POSTED_INTR_VECTOR; vmx->pi_desc.sn = 1; +#if IS_ENABLED(CONFIG_HYPERV) vmx->ept_pointer = INVALID_PAGE; - +#endif return 0; free_vmcs: @@ -6973,7 +6974,9 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu) static int vmx_vm_init(struct kvm *kvm) { +#if IS_ENABLED(CONFIG_HYPERV) spin_lock_init(&to_kvm_vmx(kvm)->ept_pointer_lock); +#endif if (!ple_gap) kvm->arch.pause_in_guest = true; diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index cecc2a641e19..2bd86d8b2f4b 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -276,7 +276,9 @@ struct vcpu_vmx { */ u64 msr_ia32_feature_control; u64 msr_ia32_feature_control_valid_bits; +#if IS_ENABLED(CONFIG_HYPERV) u64 ept_pointer; +#endif struct pt_desc pt_desc; @@ -295,8 +297,10 @@ struct kvm_vmx { bool ept_identity_pagetable_done; gpa_t ept_identity_map_addr; +#if IS_ENABLED(CONFIG_HYPERV) hpa_t hv_tlb_eptp; spinlock_t ept_pointer_lock; +#endif }; bool nested_vmx_allowed(struct kvm_vcpu *vcpu); -- 2.28.0