From patchwork Mon Jun 27 16:04:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Kuznetsov X-Patchwork-Id: 12896838 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB69FCCA473 for ; Mon, 27 Jun 2022 16:04:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238223AbiF0QE4 (ORCPT ); Mon, 27 Jun 2022 12:04:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238617AbiF0QEz (ORCPT ); Mon, 27 Jun 2022 12:04:55 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DED4FB7DB for ; Mon, 27 Jun 2022 09:04:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1656345894; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=d5C72+Bijlgvba1zoiiDuZNBQsmyvroXe6o7M5Vgx0A=; b=Jt6mMeUfiE6csJKZlcdjgUlNeASPtEjnM4w1gEej5naJd0FJueNgt2d8G6reAJOWgnkl3J W67mUJmczsXpSSM2hWDNDyvv6V5jbeBOo+x/y2Dglt7eMatGWNrOpyQVOzvYbiiuwpkG9w A8K2jfBDvkh0MKoIWTdbD4CG1taFCjU= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-185-WmgHHO6ENH6KPfS6NZGYjg-1; Mon, 27 Jun 2022 12:04:47 -0400 X-MC-Unique: WmgHHO6ENH6KPfS6NZGYjg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5356F38005CD; Mon, 27 Jun 2022 16:04:46 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.40.192.126]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0B52CC15D40; Mon, 27 Jun 2022 16:04:43 +0000 (UTC) From: Vitaly Kuznetsov To: kvm@vger.kernel.org, Paolo Bonzini , Sean Christopherson Cc: Anirudh Rayabharam , Wanpeng Li , Jim Mattson , Maxim Levitsky , linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 01/14] KVM: VMX: Check VM_ENTRY_IA32E_MODE in setup_vmcs_config() Date: Mon, 27 Jun 2022 18:04:27 +0200 Message-Id: <20220627160440.31857-2-vkuznets@redhat.com> In-Reply-To: <20220627160440.31857-1-vkuznets@redhat.com> References: <20220627160440.31857-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.8 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org VM_ENTRY_IA32E_MODE control is toggled dynamically by vmx_set_efer() and setup_vmcs_config() doesn't check its existence. On the contrary, nested_vmx_setup_ctls_msrs() doesn set it on x86_64. Add the missing check and filter the bit out in vmx_vmentry_ctrl(). No (real) functional change intended as all existing CPUs supporting long mode and VMX are supposed to have it. Signed-off-by: Vitaly Kuznetsov --- arch/x86/kvm/vmx/vmx.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index c30115b9cb33..7d5c837e5a7c 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -2610,6 +2610,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf, _pin_based_exec_control &= ~PIN_BASED_POSTED_INTR; min = VM_ENTRY_LOAD_DEBUG_CONTROLS; +#ifdef CONFIG_X86_64 + min |= VM_ENTRY_IA32E_MODE; +#endif opt = VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_IA32_EFER | @@ -4247,9 +4250,15 @@ static u32 vmx_vmentry_ctrl(void) if (vmx_pt_mode_is_system()) vmentry_ctrl &= ~(VM_ENTRY_PT_CONCEAL_PIP | VM_ENTRY_LOAD_IA32_RTIT_CTL); - /* Loading of EFER and PERF_GLOBAL_CTRL are toggled dynamically */ - return vmentry_ctrl & - ~(VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | VM_ENTRY_LOAD_IA32_EFER); + /* + * Loading of EFER, VM_ENTRY_IA32E_MODE, and PERF_GLOBAL_CTRL + * are toggled dynamically. + */ + vmentry_ctrl &= ~(VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | + VM_ENTRY_LOAD_IA32_EFER | + VM_ENTRY_IA32E_MODE); + + return vmentry_ctrl; } static u32 vmx_vmexit_ctrl(void)