From patchwork Wed Jun 1 09:51:24 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bharata B Rao X-Patchwork-Id: 9147059 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 517A960757 for ; Wed, 1 Jun 2016 10:11:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 440AA20093 for ; Wed, 1 Jun 2016 10:11:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 386AE2693F; Wed, 1 Jun 2016 10:11:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, MSGID_FROM_MTA_HEADER,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D874720093 for ; Wed, 1 Jun 2016 10:11:07 +0000 (UTC) Received: from localhost ([::1]:41487 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b837C-0001uD-UM for patchwork-qemu-devel@patchwork.kernel.org; Wed, 01 Jun 2016 06:11:06 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33781) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b82oo-0002e7-83 for qemu-devel@nongnu.org; Wed, 01 Jun 2016 05:52:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b82oi-0000TY-7D for qemu-devel@nongnu.org; Wed, 01 Jun 2016 05:52:05 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:60687) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b82oh-0000TD-V4 for qemu-devel@nongnu.org; Wed, 01 Jun 2016 05:52:00 -0400 Received: from pps.filterd (m0075771.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u519n7Pf044069 for ; Wed, 1 Jun 2016 05:51:59 -0400 Message-Id: <201606010951.u519n7Pf044069@mx0a-001b2d01.pphosted.com> Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [125.16.236.9]) by mx0a-001b2d01.pphosted.com with ESMTP id 239svy6qge-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 01 Jun 2016 05:51:58 -0400 Received: from localhost by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 1 Jun 2016 15:21:56 +0530 Received: from d28dlp01.in.ibm.com (9.184.220.126) by e28smtp09.in.ibm.com (192.168.1.139) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 1 Jun 2016 15:21:54 +0530 X-IBM-Helo: d28dlp01.in.ibm.com X-IBM-MailFrom: bharata@linux.vnet.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org;qemu-ppc@nongnu.org Received: from d28relay05.in.ibm.com (d28relay05.in.ibm.com [9.184.220.62]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 74B37E0060; Wed, 1 Jun 2016 15:25:12 +0530 (IST) Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay05.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u519pQvL12124594; Wed, 1 Jun 2016 15:21:26 +0530 Received: from d28av04.in.ibm.com (localhost [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u519phqh023435; Wed, 1 Jun 2016 15:21:45 +0530 Received: from bharata.in.ibm.com ([9.79.186.79]) by d28av04.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u519pVjO022977; Wed, 1 Jun 2016 15:21:36 +0530 From: Bharata B Rao To: qemu-devel@nongnu.org Date: Wed, 1 Jun 2016 15:21:24 +0530 X-Mailer: git-send-email 2.1.0 In-Reply-To: <1464774685-7885-1-git-send-email-bharata@linux.vnet.ibm.com> References: <1464774685-7885-1-git-send-email-bharata@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16060109-0060-0000-0000-0000009716B8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16060109-0061-0000-0000-00000D724DCD X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-06-01_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=38 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1606010116 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [RFC PATCH v0 1/2] kvm: API to obtain max supported mem slots X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, Bharata B Rao , qemu-ppc@nongnu.org, pbonzini@redhat.com, imammedo@redhat.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Introduce kvm_get_max_memslots() API that can be used to obtain the maximum number of memslots supported by KVM. Signed-off-by: Bharata B Rao --- include/sysemu/kvm.h | 1 + kvm-all.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index 65569ed..ad6f837 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -527,4 +527,5 @@ int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source); * Returns: 0 on success, or a negative errno on failure. */ int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target); +int kvm_get_max_memslots(void); #endif diff --git a/kvm-all.c b/kvm-all.c index d317dcb..fbd2d93 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -126,6 +126,13 @@ static const KVMCapabilityInfo kvm_required_capabilites[] = { KVM_CAP_LAST_INFO }; +int kvm_get_max_memslots(void) +{ + KVMState *s = KVM_STATE(current_machine->accelerator); + + return s->nr_slots; +} + static KVMSlot *kvm_get_free_slot(KVMMemoryListener *kml) { KVMState *s = kvm_state;