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=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 6BF18C433B4 for ; Mon, 19 Apr 2021 16:03:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4DA9D61363 for ; Mon, 19 Apr 2021 16:03:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242498AbhDSQDa (ORCPT ); Mon, 19 Apr 2021 12:03:30 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:58177 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242230AbhDSQCj (ORCPT ); Mon, 19 Apr 2021 12:02:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618848129; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EuiAvZsmVdESUoa9mCX4ginzQK+v8wTa/gSBjx9xLv8=; b=IqvqU+W0X9tOQPkcryKWp7vZfc+QbqloPu2k3nzhWzisjYh0Mzyx5vQzwCfORhL8ScudFw 5hVDLoEW5boZmGgzEBA7oKepxCLf5HL33eiKCjUiFXQRn6wBPDhtdkqg5eRdOKxCCazXlX T6+HSTdswNGU5EYlUcDyQypfDybfapM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-384-Zw8Iq3qCM3OOuMgNY718Bg-1; Mon, 19 Apr 2021 12:02:06 -0400 X-MC-Unique: Zw8Iq3qCM3OOuMgNY718Bg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 62E4A107ACF5; Mon, 19 Apr 2021 16:02:05 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.193.113]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5E1DB60636; Mon, 19 Apr 2021 16:02:03 +0000 (UTC) From: Vitaly Kuznetsov To: kvm@vger.kernel.org, Paolo Bonzini Cc: Sean Christopherson , Wanpeng Li , Jim Mattson , Siddharth Chandrasekaran , linux-kernel@vger.kernel.org Subject: [PATCH 14/30] KVM: x86: hyper-v: Honor HV_ACCESS_FREQUENCY_MSRS privilege bit Date: Mon, 19 Apr 2021 18:01:11 +0200 Message-Id: <20210419160127.192712-15-vkuznets@redhat.com> In-Reply-To: <20210419160127.192712-1-vkuznets@redhat.com> References: <20210419160127.192712-1-vkuznets@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org HV_X64_MSR_TSC_FREQUENCY/HV_X64_MSR_APIC_FREQUENCY are only available to guest when HV_ACCESS_FREQUENCY_MSRS bit is exposed. Signed-off-by: Vitaly Kuznetsov --- arch/x86/kvm/hyperv.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index a41ad21768ed..8821981e17d3 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1244,6 +1244,10 @@ static bool hv_check_msr_access(struct kvm_vcpu_hv *hv_vcpu, u32 msr) return hv_vcpu->cpuid_cache.features_eax & HV_MSR_APIC_ACCESS_AVAILABLE; break; + case HV_X64_MSR_TSC_FREQUENCY: + case HV_X64_MSR_APIC_FREQUENCY: + return hv_vcpu->cpuid_cache.features_eax & + HV_ACCESS_FREQUENCY_MSRS; default: break; } -- 2.30.2