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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1745836104; 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=oecAaZTuaAEeNI6Op2mn9gHfBukTJUjdImla9AWMhx0=; b=dOpn1+XolidEhmQk9asWTRx2bzBsvY/+p0y+9C5pnlyLltBFKcXR/3ctDxi/dncID2imB7 whCXXUhukpVWAzWDgPCioOsJVhtozdeTj43wN6MjUcq+ndLd09r+x27C/5nTbLpifK/oIH DW0o7PZjSmuAaDNFrPOpikthvVFAnZI= X-MC-Unique: jG8hEmhsMWKe7Vpv4T7xKA-1 X-Mimecast-MFC-AGG-ID: jG8hEmhsMWKe7Vpv4T7xKA_1745836100 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, anisinha@redhat.com, mst@redhat.com, shannon.zhaosl@gmail.com Cc: pbonzini@redhat.com, Jonathan.Cameron@huawei.com Subject: [RFC 22/24] hw/arm/virt: Let virt support pci hotplug/unplug GED event Date: Mon, 28 Apr 2025 12:25:48 +0200 Message-ID: <20250428102628.378046-23-eric.auger@redhat.com> In-Reply-To: <20250428102628.378046-1-eric.auger@redhat.com> References: <20250428102628.378046-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 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. Move the create_pcie() call after the creation of the acpi ged device since pcie coldplug will soon require the acpi pcihp resources allocated and reset during the ged initialization. Signed-off-by: Eric Auger --- include/hw/arm/virt.h | 1 + hw/arm/virt-acpi-build.c | 1 + hw/arm/virt.c | 35 ++++++++++++++++++++++++++++++----- 3 files changed, 32 insertions(+), 5 deletions(-) diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index b8ca753644..6a6a8be3ff 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -35,6 +35,7 @@ #include "hw/boards.h" #include "hw/arm/boot.h" #include "hw/arm/bsa.h" +#include "hw/acpi/pcihp.h" #include "hw/block/flash.h" #include "system/kvm.h" #include "hw/intc/arm_gicv3_common.h" diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 7bee57d489..fce3ab9417 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -44,6 +44,7 @@ #include "hw/acpi/generic_event_device.h" #include "hw/acpi/tpm.h" #include "hw/acpi/hmat.h" +#include "hw/acpi/pcihp.h" #include "hw/pci/pcie_host.h" #include "hw/pci/pci.h" #include "hw/pci/pci_bus.h" diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 2790853927..aaee5443bb 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -687,6 +687,8 @@ static inline DeviceState *create_acpi_ged(VirtMachineS= tate *vms) { DeviceState *dev; MachineState *ms =3D MACHINE(vms); + SysBusDevice *sbdev; + int irq =3D vms->irqmap[VIRT_ACPI_GED]; uint32_t event =3D ACPI_GED_PWR_DOWN_EVT; =20 @@ -698,12 +700,28 @@ static inline DeviceState *create_acpi_ged(VirtMachin= eState *vms) event |=3D ACPI_GED_NVDIMM_HOTPLUG_EVT; } =20 + if (vms->acpi_pcihp) { + event |=3D ACPI_GED_PCI_HOTPLUG_EVT; + } + dev =3D qdev_new(TYPE_ACPI_GED); qdev_prop_set_uint32(dev, "ged-event", event); - sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); + sbdev =3D SYS_BUS_DEVICE(dev); + sysbus_realize_and_unref(sbdev, &error_fatal); =20 - sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].bas= e); - sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].= base); + sysbus_mmio_map(sbdev, 0, vms->memmap[VIRT_ACPI_GED].base); + sysbus_mmio_map(sbdev, 1, vms->memmap[VIRT_PCDIMM_ACPI].base); + if (vms->acpi_pcihp) { + AcpiGedState *acpi_ged_state =3D ACPI_GED(dev); + int i; + + i =3D sysbus_mmio_map_name(sbdev, "pcihp container", + vms->memmap[VIRT_ACPI_PCIHP].base); + assert(i >=3D 0); + acpi_pcihp_init(OBJECT(dev), &acpi_ged_state->pcihp_state, + vms->bus, sysbus_mmio_get_region(sbdev, i), 0); + acpi_ged_state->pcihp_state.use_acpi_hotplug_bridge =3D true; + } sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, = irq)); =20 return dev; @@ -1765,6 +1783,13 @@ void virt_machine_done(Notifier *notifier, void *dat= a) pci_bus_add_fw_cfg_extra_pci_roots(vms->fw_cfg, vms->bus, &error_abort); =20 + + if (vms->acpi_pcihp) { + AcpiGedState *acpi_ged_state =3D ACPI_GED(vms->acpi_dev); + + acpi_pcihp_reset(&acpi_ged_state->pcihp_state); + } + virt_acpi_setup(vms); virt_build_smbios(vms); } @@ -2412,8 +2437,6 @@ static void machvirt_init(MachineState *machine) =20 create_rtc(vms); =20 - create_pcie(vms); - if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)= ) { vms->acpi_pcihp &=3D !vmc->no_acpi_pcihp; vms->acpi_dev =3D create_acpi_ged(vms); @@ -2422,6 +2445,8 @@ static void machvirt_init(MachineState *machine) create_gpio_devices(vms, VIRT_GPIO, sysmem); } =20 + create_pcie(vms); + if (vms->secure && !vmc->no_secure_gpio) { create_gpio_devices(vms, VIRT_SECURE_GPIO, secure_sysmem); } --=20 2.49.0