From patchwork Sun Nov 17 23:20:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kurz X-Patchwork-Id: 1196467 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=kaod.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47GSld1tGrz9s4Y for ; Mon, 18 Nov 2019 10:21:49 +1100 (AEDT) Received: from localhost ([::1]:57006 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iWTrW-0006fq-QK for incoming@patchwork.ozlabs.org; Sun, 17 Nov 2019 18:21:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49775) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iWTqX-0006Qu-Jk for qemu-devel@nongnu.org; Sun, 17 Nov 2019 18:20:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iWTqW-0007Q6-Gg for qemu-devel@nongnu.org; Sun, 17 Nov 2019 18:20:45 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:24622) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iWTqW-0007Pi-8h for qemu-devel@nongnu.org; Sun, 17 Nov 2019 18:20:44 -0500 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xAHNCN5P145373 for ; Sun, 17 Nov 2019 18:20:42 -0500 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0a-001b2d01.pphosted.com with ESMTP id 2way8kdf1e-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sun, 17 Nov 2019 18:20:42 -0500 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Sun, 17 Nov 2019 23:20:37 -0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xAHNKaPu56426640 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 17 Nov 2019 23:20:36 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7FAADA4040; Sun, 17 Nov 2019 23:20:36 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 50E0CA404D; Sun, 17 Nov 2019 23:20:36 +0000 (GMT) Received: from bahia.lan (unknown [9.145.70.126]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Sun, 17 Nov 2019 23:20:36 +0000 (GMT) Subject: [PATCH for-5.0 1/4] xics: Link ICS_PROP_XICS property to ICSState::xics pointer From: Greg Kurz To: David Gibson Date: Mon, 18 Nov 2019 00:20:36 +0100 In-Reply-To: <157403283036.409804.13586263493813758117.stgit@bahia.lan> References: <157403283036.409804.13586263493813758117.stgit@bahia.lan> User-Agent: StGit/unknown-version MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19111723-0028-0000-0000-000003B970AB X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19111723-0029-0000-0000-0000247C86E6 Message-Id: <157403283596.409804.17347207690271971987.stgit@bahia.lan> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95, 18.0.572 definitions=2019-11-17_05:2019-11-15, 2019-11-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 clxscore=1034 lowpriorityscore=0 adultscore=0 bulkscore=0 impostorscore=0 mlxlogscore=519 phishscore=0 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1911170222 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, =?utf-8?q?C=C3=A9dric?= Le Goater , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The ICS object has both a pointer and an ICS_PROP_XICS property pointing to the XICS fabric. Confusing bugs could arise if these ever go out of sync. Change the property definition so that it explicitely sets the pointer. The property isn't optional : not being able to set the link is a bug and QEMU should rather abort than exit in this case. Signed-off-by: Greg Kurz Reviewed-by: Cédric Le Goater --- hw/intc/xics.c | 13 +++---------- hw/ppc/pnv_psi.c | 3 +-- hw/ppc/spapr_irq.c | 9 ++------- 3 files changed, 6 insertions(+), 19 deletions(-) diff --git a/hw/intc/xics.c b/hw/intc/xics.c index e7ac9ba618fa..f7a454808992 100644 --- a/hw/intc/xics.c +++ b/hw/intc/xics.c @@ -609,17 +609,8 @@ static void ics_reset_handler(void *dev) static void ics_realize(DeviceState *dev, Error **errp) { ICSState *ics = ICS(dev); - Error *local_err = NULL; - Object *obj; - obj = object_property_get_link(OBJECT(dev), ICS_PROP_XICS, &local_err); - if (!obj) { - error_propagate_prepend(errp, local_err, - "required link '" ICS_PROP_XICS - "' not found: "); - return; - } - ics->xics = XICS_FABRIC(obj); + assert(ics->xics); if (!ics->nr_irqs) { error_setg(errp, "Number of interrupts needs to be greater 0"); @@ -699,6 +690,8 @@ static const VMStateDescription vmstate_ics = { static Property ics_properties[] = { DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0), + DEFINE_PROP_LINK(ICS_PROP_XICS, ICSState, xics, TYPE_XICS_FABRIC, + XICSFabric *), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c index a360515a86f8..7e725aaf2bd5 100644 --- a/hw/ppc/pnv_psi.c +++ b/hw/ppc/pnv_psi.c @@ -497,8 +497,7 @@ static void pnv_psi_power8_realize(DeviceState *dev, Error **errp) } /* Create PSI interrupt control source */ - object_property_add_const_link(OBJECT(ics), ICS_PROP_XICS, obj, - &error_abort); + object_property_set_link(OBJECT(ics), obj, ICS_PROP_XICS, &error_abort); object_property_set_int(OBJECT(ics), PSI_NUM_INTERRUPTS, "nr-irqs", &err); if (err) { error_propagate(errp, err); diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c index 168044be853a..487c8ceb35a3 100644 --- a/hw/ppc/spapr_irq.c +++ b/hw/ppc/spapr_irq.c @@ -319,13 +319,8 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp) return; } - object_property_add_const_link(obj, ICS_PROP_XICS, OBJECT(spapr), - &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - + object_property_set_link(obj, OBJECT(spapr), ICS_PROP_XICS, + &error_abort); object_property_set_int(obj, smc->nr_xirqs, "nr-irqs", &local_err); if (local_err) { error_propagate(errp, local_err);