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Tsirkin" , Ani Sinha , Igor Mammedov , Cameron Esfahani , Phil Dennis-Jordan , Peter Maydell , Alexander Graf , Shannon Zhao , Roman Bolshakov , Mohamed Mediouni Subject: [PATCH v2 8/9] hw/arm: virt: add GICv2m for the case when ITS is not available Date: Fri, 25 Jul 2025 10:55:44 +0200 Message-Id: <20250725085545.93619-9-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250725085545.93619-1-mohamed@unpredictable.fr> References: <20250725085545.93619-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: 2WqEGet0XPtr9VVUcw4nLjkcm-SXiYzg X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzI1MDA3NSBTYWx0ZWRfX939l4zMJqQUk MkvyEBwPZUA4CY6y517MiMDmTcbV54EX+lrT7hY15CkZQjBxE9bw356w0YZPsbk+wnTL20WC0pn zO/SJp1BtVkjq7m+loHwH7MwvyQBt0U60Gyk4M0VzlE/uMJrM0Y/JDZbtoOczXKdV9hU5qe/AF1 CsMFr5xjzlJAAkhhVbmpDL6CQXeGnEv1k+TLv3D7zE9rj8oTloNGIZ/8BOwANmx1jb5g3sIV12B UuyR30F+8WaVd+Xx9oH0nwPi0KhGcmKh3LjR+qX+yIlMUUSmDJiX+tdMRuHyCW8Jr4yS+2Hos= X-Proofpoint-GUID: 2WqEGet0XPtr9VVUcw4nLjkcm-SXiYzg X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-25_02,2025-07-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 clxscore=1030 malwarescore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2507250075 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=57.103.74.93; envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.icloud.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 @unpredictable.fr) X-ZM-MESSAGEID: 1753433819534116600 Content-Type: text/plain; charset="utf-8" On Hypervisor.framework for macOS and WHPX for Windows, the provided enviro= nment is a GICv3 without ITS. As such, support a GICv3 w/ GICv2m for that scenario. Signed-off-by: Mohamed Mediouni --- hw/arm/virt-acpi-build.c | 4 +++- hw/arm/virt.c | 8 ++++++++ include/hw/arm/virt.h | 2 ++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index b01fc4f8ef..969fa3f686 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -848,7 +848,9 @@ build_madt(GArray *table_data, BIOSLinker *linker, Virt= MachineState *vms) build_append_int_noprefix(table_data, memmap[VIRT_GIC_ITS].bas= e, 8); build_append_int_noprefix(table_data, 0, 4); /* Reserved */ } - } else { + } + + if (!vms->its && !vms->no_gicv3_with_gicv2m) { const uint16_t spi_base =3D vms->irqmap[VIRT_GIC_V2M] + ARM_SPI_BA= SE; =20 /* 5.2.12.16 GIC MSI Frame Structure */ diff --git a/hw/arm/virt.c b/hw/arm/virt.c index ab27547707..2d23e7f46f 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -952,6 +952,8 @@ static void create_gic(VirtMachineState *vms, MemoryReg= ion *mem) =20 if (vms->gic_version !=3D VIRT_GIC_VERSION_2 && vms->its) { create_its(vms); + } else if (vms->gic_version !=3D VIRT_GIC_VERSION_2 && !vms->no_gicv3_= with_gicv2m) { + create_v2m(vms); } else if (vms->gic_version =3D=3D VIRT_GIC_VERSION_2) { create_v2m(vms); } @@ -2407,6 +2409,8 @@ static void machvirt_init(MachineState *machine) vms->ns_el2_virt_timer_irq =3D ns_el2_virt_timer_present() && !vmc->no_ns_el2_virt_timer_irq; =20 + vms->no_gicv3_with_gicv2m =3D vmc->no_gicv3_with_gicv2m; + fdt_add_timer_nodes(vms); fdt_add_cpu_nodes(vms); =20 @@ -3418,6 +3422,7 @@ static void virt_instance_init(Object *obj) vms->its =3D true; /* Allow ITS emulation if the machine version supports it */ vms->tcg_its =3D !vmc->no_tcg_its; + vms->no_gicv3_with_gicv2m =3D false; =20 /* Default disallows iommu instantiation */ vms->iommu =3D VIRT_IOMMU_NONE; @@ -3470,8 +3475,11 @@ DEFINE_VIRT_MACHINE_AS_LATEST(10, 1) =20 static void virt_machine_10_0_options(MachineClass *mc) { + VirtMachineClass *vmc =3D VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); + virt_machine_10_1_options(mc); compat_props_add(mc->compat_props, hw_compat_10_0, hw_compat_10_0_len); + vmc->no_gicv3_with_gicv2m =3D true; } DEFINE_VIRT_MACHINE(10, 0) =20 diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index 365a28b082..725ec18fd2 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -131,6 +131,7 @@ struct VirtMachineClass { bool no_cpu_topology; bool no_tcg_lpa2; bool no_ns_el2_virt_timer_irq; + bool no_gicv3_with_gicv2m; bool no_nested_smmu; }; =20 @@ -178,6 +179,7 @@ struct VirtMachineState { char *oem_id; char *oem_table_id; bool ns_el2_virt_timer_irq; + bool no_gicv3_with_gicv2m; CXLState cxl_devices_state; }; =20 --=20 2.39.5 (Apple Git-154)