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[23.128.96.18]) by mx.google.com with ESMTP id l11si7821641ejd.105.2020.09.21.02.04.59; Mon, 21 Sep 2020 02:05:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@ibm.com header.s=pp1 header.b=WHBBKE1G; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ibm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726476AbgIUJDa (ORCPT + 99 others); Mon, 21 Sep 2020 05:03:30 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:41018 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726428AbgIUJDa (ORCPT ); Mon, 21 Sep 2020 05:03:30 -0400 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08L9305J146229; Mon, 21 Sep 2020 05:03:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=leuZBYJN+/lc+Fxidrffl08f1oCjwqKg5qzlph2Ogn4=; b=WHBBKE1GUfZB1ECOVoQDcwNj9LmC1qqp47gJP8wq2B6HZr1wR96jYTTYMM2buaVgn3YE /7HD2WsZzVJZWOQdu5thPBBbJV3d3uLN44L2E3+mSv9qNAeygZzH6PfJqWXFXzTqQM5b 7qn2QsISdgnsQh1BUzOGE0PQZKcp58SU2a6N5ubIbK9+BFaTVXiXqdIBSNI5Gzim8Pa9 dudhf4LUJatvlJesIDd6d1xxanVwUiaD3N2hvVIKbUrEnQTCARZ4N6ateAUKq8AA07JJ uezPdaCGhwE/R0R4EYzHWNwlzK3vWm+HWYUtg6JGSg6G3rONZGt1qDC3vWngc8X6p8gf DA== 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 33ps1f08gr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 21 Sep 2020 05:03:04 -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 08L92ZQ9016538; Mon, 21 Sep 2020 09:02:35 GMT Received: from b06avi18878370.portsmouth.uk.ibm.com (b06avi18878370.portsmouth.uk.ibm.com [9.149.26.194]) by ppma03ams.nl.ibm.com with ESMTP id 33n9m89u7s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 21 Sep 2020 09:02:34 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 08L92VSj27132210 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 21 Sep 2020 09:02:31 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9A1E4A4062; Mon, 21 Sep 2020 09:02:32 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6E7BEA4054; Mon, 21 Sep 2020 09:02:29 +0000 (GMT) Received: from satheesh.ibmuc.com (unknown [9.102.17.247]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 21 Sep 2020 09:02:29 +0000 (GMT) From: sathnaga@linux.vnet.ibm.com To: linux-doc@vger.kernel.org Cc: Satheesh Rajendran , linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Paul Mackerras , Michael Ellerman , Jonathan Corbet , Randy Dunlap Subject: [PATCH V2] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param Date: Mon, 21 Sep 2020 14:32:20 +0530 Message-Id: <20200921090220.14981-1-sathnaga@linux.vnet.ibm.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-21_01:2020-09-21,2020-09-20 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1011 priorityscore=1501 malwarescore=0 mlxlogscore=979 mlxscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 impostorscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009210067 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Satheesh Rajendran Add document entry for kvm_cma_resv_ratio kernel param which is used to alter the KVM contiguous memory allocation percentage for hash pagetable allocation used by hash mode PowerPC KVM guests. Cc: linux-kernel@vger.kernel.org Cc: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Paul Mackerras Cc: Michael Ellerman Cc: Jonathan Corbet Reviewed-by: Randy Dunlap Signed-off-by: Satheesh Rajendran --- V2: Addressed review comments from Randy. V1: https://lkml.org/lkml/2020/9/16/72 --- Documentation/admin-guide/kernel-parameters.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a1068742a6df..932ed45740c9 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2258,6 +2258,14 @@ [KVM,ARM] Allow use of GICv4 for direct injection of LPIs. + kvm_cma_resv_ratio=n [PPC] + Reserves given percentage from system memory area for + contiguous memory allocation for KVM hash pagetable + allocation. + By default it reserves 5% of total system memory. + Format: + Default: 5 + kvm-intel.ept= [KVM,Intel] Disable extended page tables (virtualized MMU) support on capable Intel chips. Default is 1 (enabled) -- 2.26.2