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=-16.1 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 1B66DC433B4 for ; Fri, 21 May 2021 09:54:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01D436135C for ; Fri, 21 May 2021 09:54:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236554AbhEUJzc (ORCPT ); Fri, 21 May 2021 05:55:32 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:58812 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235807AbhEUJyM (ORCPT ); Fri, 21 May 2021 05:54:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621590767; 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=m8EWwZqFoaBcdfJhsEam+65aHB3SYeclKlGOWW0aLIg=; b=JsyApk2ildWdkrbqyS1egQZdpwEZK2va2AeM6JTp0wTMtmmpMSPVW5uygthEV2QSx4TYwt +mGszGRCWkh6QMaLdt8uLzWyQy8A5rAgs4RlfQPvRXbVacMP0wOyGInRi+81EdHgX34wFi qD8PjqVPH/V4ldR9x5yhIsp7210VrQ0= 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-357-xb0gLtfhPgWTecK-0x9yJg-1; Fri, 21 May 2021 05:52:43 -0400 X-MC-Unique: xb0gLtfhPgWTecK-0x9yJg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 73317101F7AD; Fri, 21 May 2021 09:52:42 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.195.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id 24E24687F7; Fri, 21 May 2021 09:52:35 +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 v2 12/30] KVM: x86: hyper-v: Honor HV_MSR_SYNTIMER_AVAILABLE privilege bit Date: Fri, 21 May 2021 11:51:46 +0200 Message-Id: <20210521095204.2161214-13-vkuznets@redhat.com> In-Reply-To: <20210521095204.2161214-1-vkuznets@redhat.com> References: <20210521095204.2161214-1-vkuznets@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Synthetic timers MSRs (HV_X64_MSR_STIMER[0-3]_CONFIG, HV_X64_MSR_STIMER[0-3]_COUNT) are only available to guest when HV_MSR_SYNTIMER_AVAILABLE bit is exposed. Signed-off-by: Vitaly Kuznetsov --- arch/x86/kvm/hyperv.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 17bdf8e8196e..2582c23126fa 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1227,6 +1227,16 @@ static bool hv_check_msr_access(struct kvm_vcpu_hv *hv_vcpu, u32 msr) case HV_X64_MSR_SINT0 ... HV_X64_MSR_SINT15: return hv_vcpu->cpuid_cache.features_eax & HV_MSR_SYNIC_AVAILABLE; + case HV_X64_MSR_STIMER0_CONFIG: + case HV_X64_MSR_STIMER1_CONFIG: + case HV_X64_MSR_STIMER2_CONFIG: + case HV_X64_MSR_STIMER3_CONFIG: + case HV_X64_MSR_STIMER0_COUNT: + case HV_X64_MSR_STIMER1_COUNT: + case HV_X64_MSR_STIMER2_COUNT: + case HV_X64_MSR_STIMER3_COUNT: + return hv_vcpu->cpuid_cache.features_eax & + HV_MSR_SYNTIMER_AVAILABLE; default: break; } -- 2.31.1