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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E365C4332F for ; Thu, 14 Apr 2022 14:11:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346793AbiDNOLW (ORCPT ); Thu, 14 Apr 2022 10:11:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244913AbiDNN2R (ORCPT ); Thu, 14 Apr 2022 09:28:17 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0BC7DA888D for ; Thu, 14 Apr 2022 06:21:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649942478; 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=xdKsxLQ5UO1JQNnacve3qftEaVyF2Om7H+/cS9EK+qY=; b=LN7BMDokm4XWzzV7gUPOQ5EUcn6+7sX1BvisByUUnALdaSPUIGhHv3k6pAw18bWuMhIolC rOaDtBNBMUtD+WFMf1xcQhXKdXDXOlNmhjByaFRYA5R0MynbXJuFR4La84ALcO2FQMd7/y ozo6hQOlDIa3w4qLLOXKAb2O+zfEvHA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-588-tXAivXl3NK-sf2bT_vDU6w-1; Thu, 14 Apr 2022 09:21:15 -0400 X-MC-Unique: tXAivXl3NK-sf2bT_vDU6w-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8EAE48339A5; Thu, 14 Apr 2022 13:21:01 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.40.195.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id CF8297C28; Thu, 14 Apr 2022 13:20:59 +0000 (UTC) From: Vitaly Kuznetsov To: kvm@vger.kernel.org, Paolo Bonzini Cc: Sean Christopherson , Wanpeng Li , Jim Mattson , Michael Kelley , Siddharth Chandrasekaran , linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 22/34] KVM: x86: Expose Hyper-V L2 TLB flush feature Date: Thu, 14 Apr 2022 15:20:01 +0200 Message-Id: <20220414132013.1588929-23-vkuznets@redhat.com> In-Reply-To: <20220414132013.1588929-1-vkuznets@redhat.com> References: <20220414132013.1588929-1-vkuznets@redhat.com> MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With both nSVM and nVMX implementations in place, KVM can now expose Hyper-V L2 TLB flush feature to userspace. Signed-off-by: Vitaly Kuznetsov --- arch/x86/kvm/hyperv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 68a0df4e3f66..1d6927538bc7 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -2826,6 +2826,7 @@ int kvm_get_hv_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid, case HYPERV_CPUID_NESTED_FEATURES: ent->eax = evmcs_ver; + ent->eax |= HV_X64_NESTED_DIRECT_FLUSH; ent->eax |= HV_X64_NESTED_MSR_BITMAP; break; -- 2.35.1