From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3t4Tbk16RfzDvR3 for ; Fri, 28 Oct 2016 01:21:53 +1100 (AEDT) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u9REITEG093073 for ; Thu, 27 Oct 2016 10:21:52 -0400 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0a-001b2d01.pphosted.com with ESMTP id 26bgvxhw89-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 27 Oct 2016 10:21:51 -0400 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 27 Oct 2016 08:21:51 -0600 Subject: Re: [PATCH v6 2/3] powerpc/pseries: Implement indexed-count hotplug memory add To: Nathan Fontenot , linuxppc-dev@lists.ozlabs.org References: <20161018171803.37287.54834.stgit@ltcalpine2-lp14.aus.stglabs.ibm.com> <20161018172032.37287.13316.stgit@ltcalpine2-lp14.aus.stglabs.ibm.com> Cc: sahilmehta17@gmail.com From: John Allen Date: Thu, 27 Oct 2016 09:21:48 -0500 MIME-Version: 1.0 In-Reply-To: <20161018172032.37287.13316.stgit@ltcalpine2-lp14.aus.stglabs.ibm.com> Content-Type: text/plain; charset=utf-8 Message-Id: <91e1dc80-3abc-a121-dbc7-f7e153fffe56@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 10/18/2016 12:20 PM, Nathan Fontenot wrote: > From: Sahil Mehta > > Indexed-count add for memory hotplug guarantees that a contiguous block > of lmbs beginning at a specified will be assigned (NOT > that lmbs will be added). Because of Qemu's per-DIMM memory > management, the addition of a contiguous block of memory currently > requires a series of individual calls. Indexed-count add reduces > this series into a single call. > > Signed-off-by: Sahil Mehta > Signed-off-by: Nathan Fontenot > --- Reviewed-by: John Allen