From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eKnYA-00021x-1k for qemu-devel@nongnu.org; Fri, 01 Dec 2017 10:49:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eKnXW-00012S-Gx for qemu-devel@nongnu.org; Fri, 01 Dec 2017 10:48:26 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:46352 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eKnXW-00011c-8m for qemu-devel@nongnu.org; Fri, 01 Dec 2017 10:47:46 -0500 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vB1BOGse006258 for ; Fri, 1 Dec 2017 06:24:20 -0500 Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ek3vsej8a-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 01 Dec 2017 06:24:20 -0500 Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 1 Dec 2017 11:24:18 -0000 From: Seeteena Thoufeek Date: Fri, 1 Dec 2017 16:54:09 +0530 Message-Id: <1512127449-11114-1-git-send-email-s1seetee@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v1] spapr.c: Update qemu's maxcpus for pseries machine. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: david@gibson.dropbear.id.au, agraf@suse.de, qemu-ppc@nongnu.org, qemu-devel@nongnu.org Cc: s1seetee@linux.vnet.ibm.com Need to adjust the max cpus supported number from error message since it was conflicting with KVM's. Steps to Reproduce: 1.boot up with "-smp 64,maxcpus=102464,cores=8,threads=1,sockets=8" qemu-kvm: Number of SMP CPUs requested (102464) exceeds max CPUs supported by machine 'pseries-rhel7.4.0alt' (1024) 2. On KVM machine it shows boot up with "-m 6G,maxmem=300G,slots=256 -smp 64,maxcpus=1024,cores=8,threads=1 ,sockets=128" Number of hotpluggable cpus requested (1024) exceeds the maximum cpus supported by KVM (240) It seemed that 1024 was useless since KVM only support 240 so far. Hence,we need to adjust it to an reasonable value 240. Signed-off-by: Seeteena Thoufeek --- hw/ppc/spapr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 9efddea..c753254 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3691,6 +3691,7 @@ static const TypeInfo spapr_machine_info = { if (latest) { \ mc->alias = "pseries"; \ mc->is_default = 1; \ + mc->max_cpus = 240; \ } \ } \ static void spapr_machine_##suffix##_instance_init(Object *obj) \ -- 1.8.3.1