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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1751546428; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qOo0M/gBODBY/l4vKN4I8WgeRJue6j7oGCUoicYhs58=; b=A6ac9a1b/TxBBy6+fO63hIfcdoOTk4Q1qF25mMN7XM8PX3kUKm5kt8uzsVvkg9CzZ6wztx ZhP+ympsBb9eUxEfI20KLGYR06V8+6B4ZnGtve2Xw5ddAqrIcXdjZr+9+nm67OLXr/R1W/ 8wjYba7bfQsXBdgUAPV1dbYMNAG1HPg= X-MC-Unique: YacpWBbyMqKWyBI4UfuuqA-1 X-Mimecast-MFC-AGG-ID: YacpWBbyMqKWyBI4UfuuqA_1751546424 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, imammedo@redhat.com, Jonathan.Cameron@huawei.com, gustavo.romero@linaro.org, anisinha@redhat.com, mst@redhat.com, shannon.zhaosl@gmail.com Cc: pbonzini@redhat.com, philmd@linaro.org, alex.bennee@linaro.org Subject: [PATCH v5 32/36] hw/arm/virt: Let virt support pci hotplug/unplug GED event Date: Thu, 3 Jul 2025 14:35:32 +0200 Message-ID: <20250703123728.414386-33-eric.auger@redhat.com> In-Reply-To: <20250703123728.414386-1-eric.auger@redhat.com> References: <20250703123728.414386-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Set up the IO registers used to communicate between QEMU and ACPI. Signed-off-by: Eric Auger --- v2 -> v3: - remove acpi_ged_state->pcihp_state.use_acpi_hotplug_bridge =3D true; - use sysbus_mmio_map_name for all regs (Igor) - create_pcie left at its original place v1 -> v2: - use ACPI_PCIHP_REGION_NAME --- hw/arm/virt.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 7b247ad30c..4f6fe16675 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -686,6 +686,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineS= tate *vms) SysBusDevice *sbdev; int irq =3D vms->irqmap[VIRT_ACPI_GED]; uint32_t event =3D ACPI_GED_PWR_DOWN_EVT; + bool acpi_pcihp; =20 if (ms->ram_slots) { event |=3D ACPI_GED_MEM_HOTPLUG_EVT; @@ -704,6 +705,18 @@ static inline DeviceState *create_acpi_ged(VirtMachine= State *vms) sysbus_mmio_map_name(sbdev, TYPE_ACPI_GED, vms->memmap[VIRT_ACPI_GED].= base); sysbus_mmio_map_name(sbdev, ACPI_MEMHP_REGION_NAME, vms->memmap[VIRT_PCDIMM_ACPI].base); + + acpi_pcihp =3D object_property_get_bool(OBJECT(dev), + ACPI_PM_PROP_ACPI_PCIHP_BRIDGE, = NULL); + + if (acpi_pcihp) { + int pcihp_region_index; + + pcihp_region_index =3D sysbus_mmio_map_name(sbdev, ACPI_PCIHP_REGI= ON_NAME, + vms->memmap[VIRT_ACPI_PC= IHP].base); + assert(pcihp_region_index >=3D 0); + } + sysbus_connect_irq(sbdev, 0, qdev_get_gpio_in(vms->gic, irq)); =20 return dev; --=20 2.49.0