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=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 8F36DC433E0 for ; Thu, 30 Jul 2020 16:49:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7261A207F5 for ; Thu, 30 Jul 2020 16:49:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728437AbgG3QtA (ORCPT ); Thu, 30 Jul 2020 12:49:00 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:57120 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726353AbgG3Qs7 (ORCPT ); Thu, 30 Jul 2020 12:48:59 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 06UGY6gv028196; Thu, 30 Jul 2020 12:48:51 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 32krumt8gg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Jul 2020 12:48:51 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 06UGjpvJ002120; Thu, 30 Jul 2020 16:48:49 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma03ams.nl.ibm.com with ESMTP id 32gcpx6cqt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Jul 2020 16:48:48 +0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 06UGmkAQ27918748 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 30 Jul 2020 16:48:46 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B307FA404D; Thu, 30 Jul 2020 16:48:46 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 59677A4040; Thu, 30 Jul 2020 16:48:45 +0000 (GMT) Received: from oc0525413822.ibm.com (unknown [9.211.129.132]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Thu, 30 Jul 2020 16:48:45 +0000 (GMT) Date: Thu, 30 Jul 2020 09:48:42 -0700 From: Ram Pai To: Julia Lawall Cc: sukadev@linux.ibm.com, corbet@lwn.net, linuxppc-dev@lists.ozlabs.org, linux-doc@vger.kernel.org Message-ID: <20200730164842.GA5882@oc0525413822.ibm.com> Reply-To: Ram Pai References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 Subject: Re: Documentation/powerpc: Ultravisor API X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-30_12:2020-07-30,2020-07-30 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 lowpriorityscore=0 mlxlogscore=803 impostorscore=0 malwarescore=0 mlxscore=0 suspectscore=0 adultscore=0 priorityscore=1501 bulkscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007300113 Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Thu, Jul 30, 2020 at 12:35:38PM +0200, Julia Lawall wrote: > The file Documentation/powerpc/ultravisor.rst contains: > > Only valid value(s) in ``flags`` are: > > * H_PAGE_IN_SHARED which indicates that the page is to be shared > with the Ultravisor. > > * H_PAGE_IN_NONSHARED indicates that the UV is not anymore > interested in the page. Applicable if the page is a shared page. > > The flag H_PAGE_IN_SHARED exists in the Linux kernel > (arch/powerpc/include/asm/hvcall.h), but the flag H_PAGE_IN_NONSHARED does > not. Should the documentation be changed in some way? Currently the code assumes H_PAGE_IN_NONSHARED as !H_PAGE_IN_SHARED. We need to patch the kernel to explicitly define the flag. I will submit a patch towards this. Thanks, RP