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=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 140B6ECE58E for ; Fri, 11 Oct 2019 08:22:12 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D57CA21D7D for ; Fri, 11 Oct 2019 08:22:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D57CA21D7D 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=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 65EAC8E0005; Fri, 11 Oct 2019 04:22:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 60F828E0001; Fri, 11 Oct 2019 04:22:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 524A58E0005; Fri, 11 Oct 2019 04:22:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0118.hostedemail.com [216.40.44.118]) by kanga.kvack.org (Postfix) with ESMTP id 28CE68E0001 for ; Fri, 11 Oct 2019 04:22:11 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id B61F4180AD806 for ; Fri, 11 Oct 2019 08:22:10 +0000 (UTC) X-FDA: 76030811220.23.quilt94_12ed8ebb5b02c X-HE-Tag: quilt94_12ed8ebb5b02c X-Filterd-Recvd-Size: 1877 Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Fri, 11 Oct 2019 08:22:09 +0000 (UTC) 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 Cc: 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-Bogosity: Ham, tests=bogofilter, spamicity=0.000228, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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