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=unavailable 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 4FFABC433ED for ; Fri, 21 May 2021 09:55:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 36A986135C for ; Fri, 21 May 2021 09:55:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237930AbhEUJ5T (ORCPT ); Fri, 21 May 2021 05:57:19 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:33886 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237263AbhEUJyu (ORCPT ); Fri, 21 May 2021 05:54:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621590807; 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=/Q5Tae9tMPkIXAiCoXoro47U0oXxU6+R4OUPS9XUKeA=; b=NUVCBJ9r8jY5AzDxTHdgW5WkJnwUZpOHSyGszUyE0IzsqqCSJjzRLjRY/8T/NbXzblFhWw iFG46hj6kmfrZEkdVvBwO+Q1mjyn+glDwDRt38GjvAinBVpun7Uhgy/qlfBQIZjbiUHKSe INlm5em8AOIzTiMmePmpS+N5zBBukpQ= 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-505-C0AjuppRO-W-g8eaqEj8Iw-1; Fri, 21 May 2021 05:53:24 -0400 X-MC-Unique: C0AjuppRO-W-g8eaqEj8Iw-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 ED0B5343A5; Fri, 21 May 2021 09:53:22 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.195.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id EB2B56A047; Fri, 21 May 2021 09:53:20 +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 23/30] KVM: x86: hyper-v: Honor HV_SIGNAL_EVENTS privilege bit Date: Fri, 21 May 2021 11:51:57 +0200 Message-Id: <20210521095204.2161214-24-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: linux-kernel@vger.kernel.org Hyper-V partition must possess 'HV_SIGNAL_EVENTS' privilege to issue HVCALL_SIGNAL_EVENT hypercalls. Signed-off-by: Vitaly Kuznetsov --- arch/x86/kvm/hyperv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index ff86c00d1396..523f63287636 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -2033,6 +2033,8 @@ static bool hv_check_hypercall_access(struct kvm_vcpu_hv *hv_vcpu, u16 code) hv_vcpu->cpuid_cache.enlightenments_ebx != U32_MAX; case HVCALL_POST_MESSAGE: return hv_vcpu->cpuid_cache.features_ebx & HV_POST_MESSAGES; + case HVCALL_SIGNAL_EVENT: + return hv_vcpu->cpuid_cache.features_ebx & HV_SIGNAL_EVENTS; default: break; } -- 2.31.1