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=-6.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT 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 EE1C0C072B1 for ; Thu, 30 May 2019 04:36:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C803E25813 for ; Thu, 30 May 2019 04:36:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559190988; bh=2W0LCAp+js594ct7JLGSdDfTbTh5tQVJFIJpPYJMW8k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=OpYUIxrqYItEjwzmdOt9ZDpvZ4PRpV+EVfq1zGqTj7JrbcTAMc3ClGx2ziuvIzG7F nDKJMeeKmLO5xETlwVlUe81+maUBfdFGN/MKDmy5MmW53OrSXIC/wY/vg1HEUNHhsK +C1umZh9YJD/53/54emkVkw2mr0W397hkfZqfYRc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388505AbfE3EgM (ORCPT ); Thu, 30 May 2019 00:36:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:57148 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729320AbfE3DNB (ORCPT ); Wed, 29 May 2019 23:13:01 -0400 Received: from localhost (ip67-88-213-2.z213-88-67.customer.algx.net [67.88.213.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F035823D83; Thu, 30 May 2019 03:13:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559185981; bh=2W0LCAp+js594ct7JLGSdDfTbTh5tQVJFIJpPYJMW8k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2l75gPO0s28p7c8MenKFYRzUz1x6rSXpyEmQmQXnwDRMmPsqzdZ56HOFHvNDKuU6M J6jzo3JLW8lXjOYDFMgPKynnrh30zW7jCwcs3jtQjm0rr70zrMJVWNVBildwe5uIfr +q298usc9M6jGiBxTojIdHV/r8oF2xhV5pocm+Hg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Pavel Machek , Sean Christopherson , Paolo Bonzini Subject: [PATCH 5.0 004/346] KVM: x86: fix return value for reserved EFER Date: Wed, 29 May 2019 20:01:17 -0700 Message-Id: <20190530030540.651104022@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030540.363386121@linuxfoundation.org> References: <20190530030540.363386121@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Paolo Bonzini commit 66f61c92889ff3ca365161fb29dd36d6354682ba upstream. Commit 11988499e62b ("KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes", 2019-04-02) introduced a "return false" in a function returning int, and anyway set_efer has a "nonzero on error" conventon so it should be returning 1. Reported-by: Pavel Machek Fixes: 11988499e62b ("KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes") Cc: Sean Christopherson Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1288,7 +1288,7 @@ static int set_efer(struct kvm_vcpu *vcp u64 efer = msr_info->data; if (efer & efer_reserved_bits) - return false; + return 1; if (!msr_info->host_initiated) { if (!__kvm_valid_efer(vcpu, efer))