From patchwork Fri Sep 27 11:53:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kurz X-Patchwork-Id: 11164413 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 66F8413BD for ; Fri, 27 Sep 2019 11:53:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F50C20872 for ; Fri, 27 Sep 2019 11:53:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726295AbfI0Lxn (ORCPT ); Fri, 27 Sep 2019 07:53:43 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:51230 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726144AbfI0Lxn (ORCPT ); Fri, 27 Sep 2019 07:53:43 -0400 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x8RBkiTp120526 for ; Fri, 27 Sep 2019 07:53:40 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0b-001b2d01.pphosted.com with ESMTP id 2v9gv3jdch-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 27 Sep 2019 07:53:40 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 27 Sep 2019 12:53:38 +0100 Received: from b06cxnps3075.portsmouth.uk.ibm.com (9.149.109.195) by e06smtp01.uk.ibm.com (192.168.101.131) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 27 Sep 2019 12:53:34 +0100 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x8RBrXKQ24445092 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 27 Sep 2019 11:53:33 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F326AAE057; Fri, 27 Sep 2019 11:53:32 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 992F4AE055; Fri, 27 Sep 2019 11:53:32 +0000 (GMT) Received: from bahia.lan (unknown [9.145.172.9]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 27 Sep 2019 11:53:32 +0000 (GMT) Subject: [PATCH v2 0/6] KVM: PPC: Book3S: HV: XIVE: Allocate less VPs in OPAL From: Greg Kurz To: Paul Mackerras Cc: Michael Ellerman , Benjamin Herrenschmidt , =?utf-8?q?C=C3=A9dric?= Le Goater , David Gibson , Paolo Bonzini , Radim =?utf-8?b?S3LEjW3DocWZ?= , kvm-ppc@vger.kernel.org, kvm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, stable@vger.kernel.org Date: Fri, 27 Sep 2019 13:53:32 +0200 User-Agent: StGit/unknown-version MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19092711-4275-0000-0000-0000036BC507 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19092711-4276-0000-0000-0000387E46F9 Message-Id: <156958521220.1503771.2119482814236775333.stgit@bahia.lan> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-09-27_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1034 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=330 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1909270112 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This brings some fixes and allows to start more VMs with an in-kernel XIVE or XICS-on-XIVE device. Changes since v1 (https://patchwork.ozlabs.org/cover/1166099/): - drop a useless patch - add a patch to show VP ids in debugfs - update some changelogs - fix buggy check in patch 5 - Cc: stable --- Greg --- Greg Kurz (6): KVM: PPC: Book3S HV: XIVE: Set kvm->arch.xive when VPs are allocated KVM: PPC: Book3S HV: XIVE: Ensure VP isn't already in use KVM: PPC: Book3S HV: XIVE: Show VP id in debugfs KVM: PPC: Book3S HV: XIVE: Compute the VP id in a common helper KVM: PPC: Book3S HV: XIVE: Make VP block size configurable KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs Documentation/virt/kvm/devices/xics.txt | 14 +++ Documentation/virt/kvm/devices/xive.txt | 8 ++ arch/powerpc/include/uapi/asm/kvm.h | 3 + arch/powerpc/kvm/book3s_xive.c | 142 ++++++++++++++++++++++++------- arch/powerpc/kvm/book3s_xive.h | 17 ++++ arch/powerpc/kvm/book3s_xive_native.c | 40 +++------ 6 files changed, 167 insertions(+), 57 deletions(-)