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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,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 15FDAC47404 for ; Fri, 11 Oct 2019 08:26:41 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C2CEC21A4A for ; Fri, 11 Oct 2019 08:26:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C2CEC21A4A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46qLdp5S0qzDqbx for ; Fri, 11 Oct 2019 19:26:38 +1100 (AEDT) Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46qLXY00f7zDqX1 for ; Fri, 11 Oct 2019 19:22:05 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 46qLXX4HkYz9sP6; Fri, 11 Oct 2019 19:22:04 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 4ab8a485f7bc69e04e3e8d75f62bdcac5f4ed02e In-Reply-To: <20191001132928.72555-1-ldufour@linux.ibm.com> To: Laurent Dufour , sfr@linux.ibm.com, benh@kernel.crashing.org, paulus@samba.org, aneesh.kumar@linux.ibm.com, npiggin@gmail.com, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org From: Michael Ellerman Subject: Re: [PATCH] powerpc/pseries: Remove confusing warning message. Message-Id: <46qLXX4HkYz9sP6@ozlabs.org> Date: Fri, 11 Oct 2019 19:22:04 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, 2019-10-01 at 13:29:28 UTC, Laurent Dufour wrote: > Since the commit 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate > Characteristics"), a warning message is displayed when booting a guest on > top of KVM: > > lpar: arch/powerpc/platforms/pseries/lpar.c pseries_lpar_read_hblkrm_characteristics Error calling get-system-parameter (0xfffffffd) > > This message is displayed because this hypervisor is not supporting the > H_BLOCK_REMOVE hcall and thus is not exposing the corresponding feature. > > Reading the TLB Block Invalidate Characteristics should not be done if the > feature is not exposed. > > Fixes: 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate Characteristics") > Reported-by: Stephen Rothwell > Signed-off-by: Laurent Dufour Reapplied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/4ab8a485f7bc69e04e3e8d75f62bdcac5f4ed02e cheers