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Iglesias" , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "Alistair Francis" , Frederic Konrad , Sai Pavan Boddu , Luc Michel Subject: [PATCH v4 23/47] hw/intc/arm_gicv3: Introduce a 'first-cpu-index' property Date: Fri, 22 Aug 2025 17:15:48 +0200 Message-ID: <20250822151614.187856-24-luc.michel@amd.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250822151614.187856-1-luc.michel@amd.com> References: <20250822151614.187856-1-luc.michel@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PEPF00003440:EE_|DS0PR12MB6533:EE_ X-MS-Office365-Filtering-Correlation-Id: a52e0c50-a8ab-4c8b-2339-08dde18efa4e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|36860700013|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?AsZiniGJYqObnmvUM20f4xPZutZN6stkcV11tqvgmiGttcLj0wT1cNIJaQbU?= =?us-ascii?Q?XJYld7FZqeLYKZRk8k4ha4NfUzgyZhjgG81vJZ4uikYqK/U65yD2/lMTDgQq?= =?us-ascii?Q?YoegP0A8y5aISVbpdJ2YwGDqvkt3hKGIuh4kgd8rAWI14mWUYCn9V58GBskQ?= =?us-ascii?Q?XUuS8lFkcc3/LEWja2e4+iVlF9CgPBo6XbmClJs9zeafh2BLgsGRPO0Ww0sl?= =?us-ascii?Q?XpBlZc/B7oYaMcJqtW4sfQRVSy6HgX+EYUVDOQR1/JnWvW9MP355Bdk2/G4Z?= =?us-ascii?Q?IZ0lYUbY2xyEfZL91oA7TsLmqnF2F9EhPNyqUz/xbXngjXw3duiSP2AyVZ7G?= =?us-ascii?Q?gzB6VdM6JxRVVLZYmBu/6VcWz0m9Mdllpj/yHWaWEeg2yPMP4SgFRFAyjTEP?= =?us-ascii?Q?O6yVoKSm7i6RNlk9J1kuWxf4BmzLs7L6CZcsr+2km0jcWW9qyeYdS1sLnbYf?= =?us-ascii?Q?/DO40r+QMwpa6uIvfD6XzCqP6oBgsVuWenkJrCk6PTEWC6EvX/tzMMzSDnIM?= =?us-ascii?Q?tdlFfN0sDhn0jb2HVSzkj2MVMSvbFnMxmv1k7AVJO8SUweTLl1FDpE6u7dME?= =?us-ascii?Q?Ip5k0axZ6GkMJMcaCIkVTPe9utMuJfYUFbStGKPY7w+iaUdL5032W0xxwvBP?= =?us-ascii?Q?aF+6QjyNZHl0fYu40Pdx1+fDr7gJ9lB+Rqj3D+odOMeTyl6Julk+3XsFSPWW?= =?us-ascii?Q?2czd9kazUSgkQinAPO8wZIFw87+8+OzPhrQ9TvFd4VwDLECVzpme2JJA1Vx6?= =?us-ascii?Q?VU3sRJJIunGum2RNeQM1Z1tLaCBYZ1TCJk5e52Am2HbkcjO1J+58tBrUcPym?= =?us-ascii?Q?iZv+wMJrl/jeAMvt4mNrHwHuKiP2WBXhKm7zpnYVURxP0RGlHfy0xaAw+zfw?= =?us-ascii?Q?gtvEsGVRxr0qHCbtLBh1mSuUDV/us+tRWmW8IIYYyE9KW8k0aj3B2iqiAkpP?= =?us-ascii?Q?PNJG+mphRmW1dmtOdeIt9aJ8M6BgcLyTt0yKiEb7PGGDZqoSydlsDPO3Eqrr?= =?us-ascii?Q?hqDznzTDMkU1cedI78OQ0Lhc9M/c5NG6RFnH83twQdWEdewAbQzzMeK8SqGg?= =?us-ascii?Q?cY8pd0QBrHTGy9+T9RyScyOjhlgYX8lLH4j2fDzB2pQI14S1G+C+joAfrYtN?= =?us-ascii?Q?26rNSs1UkYHYbAqRDLg8OU1A6JAMmJr6WyQc7mmK0AJNnEcUaIaDi2h5uK1Q?= =?us-ascii?Q?I2GcINSzYEB2+83Xs9HH2IpqBARXyF4nQoZgo6Yfl924iH6/qMy3RQeij4RG?= =?us-ascii?Q?iQyQcFOxgGVS7vfxds/vh3nCPedEPivPekKd1UotKTqq+39xk6tvFa5C+gD8?= =?us-ascii?Q?+oFPadCxeaiAd21VJYVnrQQ6qyT3N0cxhShx+sG80R1/8YgsqviohLYWvnNd?= =?us-ascii?Q?1UR6iaji3IzebMBgREAiSkiQAO8gIluLumhmunURI0QW9zLFjXBaJr3kauCV?= =?us-ascii?Q?Q9ak4xDlC5MLC1codfz34flYh0ZHVRKUWqWs8EVPXswzdsTWBuNpKkg+mjZd?= =?us-ascii?Q?ZcSBCB8s9qkLwC2QqYjY2Oq8ozQlqPwEhiko?= X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(36860700013)(376014)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2025 15:17:15.6674 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a52e0c50-a8ab-4c8b-2339-08dde18efa4e X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS2PEPF00003440.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6533 Received-SPF: permerror client-ip=2a01:111:f403:2009::620; envelope-from=Luc.Michel@amd.com; helo=NAM10-BN7-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1755875959059124100 Content-Type: text/plain; charset="utf-8" From: Francisco Iglesias Introduce a 'first-cpu-index' property for specifying the first QEMU CPU connected to the GICv3. This makes it possible to have multiple instances of the GICv3 connected to different CPU clusters. For KVM, mark this property has unsupported. It probably does not make much sense as it is intented to be used to model non-SMP systems. Signed-off-by: Luc Michel Signed-off-by: Francisco Iglesias Reviewed-by: Peter Maydell Reviewed-by: Sai Pavan Boddu cpu =3D g_new0(GICv3CPUState, s->num_cpu); =20 for (i =3D 0; i < s->num_cpu; i++) { - CPUState *cpu =3D qemu_get_cpu(i); + CPUState *cpu =3D qemu_get_cpu(s->first_cpu_idx + i); uint64_t cpu_affid; =20 s->cpu[i].cpu =3D cpu; s->cpu[i].gic =3D s; /* Store GICv3CPUState in CPUARMState gicv3state pointer */ @@ -620,10 +620,11 @@ static const Property arm_gicv3_common_properties[] = =3D { DEFINE_PROP_BOOL("force-8-bit-prio", GICv3State, force_8bit_prio, 0), DEFINE_PROP_ARRAY("redist-region-count", GICv3State, nb_redist_regions, redist_region_count, qdev_prop_uint32, uint32_t), DEFINE_PROP_LINK("sysmem", GICv3State, dma, TYPE_MEMORY_REGION, MemoryRegion *), + DEFINE_PROP_UINT32("first-cpu-index", GICv3State, first_cpu_idx, 0), }; =20 static void arm_gicv3_common_class_init(ObjectClass *klass, const void *da= ta) { DeviceClass *dc =3D DEVICE_CLASS(klass); diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c index 4b4cf091570..1af7690b958 100644 --- a/hw/intc/arm_gicv3_cpuif.c +++ b/hw/intc/arm_gicv3_cpuif.c @@ -3022,11 +3022,11 @@ void gicv3_init_cpuif(GICv3State *s) * registers with the CPU */ int i; =20 for (i =3D 0; i < s->num_cpu; i++) { - ARMCPU *cpu =3D ARM_CPU(qemu_get_cpu(i)); + ARMCPU *cpu =3D ARM_CPU(qemu_get_cpu(s->first_cpu_idx + i)); GICv3CPUState *cs =3D &s->cpu[i]; =20 /* * If the CPU doesn't define a GICv3 configuration, probably becau= se * in real hardware it doesn't have one, then we use default values diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c index 6166283cd1a..e6a09c9b7d0 100644 --- a/hw/intc/arm_gicv3_kvm.c +++ b/hw/intc/arm_gicv3_kvm.c @@ -807,10 +807,16 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, E= rror **errp) if (s->nmi_support) { error_setg(errp, "NMI is not supported with the in-kernel GIC"); return; } =20 + if (s->first_cpu_idx !=3D 0) { + error_setg(errp, "Non-zero first-cpu-idx is unsupported with the " + "in-kernel GIC"); + return; + } + gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL); =20 for (i =3D 0; i < s->num_cpu; i++) { ARMCPU *cpu =3D ARM_CPU(qemu_get_cpu(i)); =20 --=20 2.50.1