diff options
author | Igor Mammedov <imammedo@redhat.com> | 2022-06-08 09:53:25 -0400 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2022-06-09 19:32:49 -0400 |
commit | 887e8e9d3a4578059bd0a213e9b3cae81943dc18 (patch) | |
tree | e17f91cb25cc922a0301cb1fa369d45c705f3628 /hw | |
parent | 92ea7fb3fe311d30905e12a962b22a38251c1a79 (diff) | |
download | qemu-887e8e9d3a4578059bd0a213e9b3cae81943dc18.zip qemu-887e8e9d3a4578059bd0a213e9b3cae81943dc18.tar.gz qemu-887e8e9d3a4578059bd0a213e9b3cae81943dc18.tar.bz2 |
acpi: q35: isa bridge: use AcpiDevAmlIf interface to build ISA device descriptors
replaces adhoc build_isa_devices_aml() with generic AcpiDevAmlIf
way to build bridge AML including all devices that are attached
to its ISA bus.
Later when PCI is converted to AcpiDevAmlIf, build_q35_isa_bridge()
will also be dropped since PCI parts itself will take care of
building device prologue/epilogue AML for each enumerated PCI device.
Expected AML change is contextual, where ISA devices are moved from
separately declared _SB.PCI0.ISA scope, directly under Device(ISA)
node.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-21-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/i386/acpi-build.c | 30 | ||||
-rw-r--r-- | hw/isa/lpc_ich9.c | 19 |
2 files changed, 30 insertions, 19 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index f903f30..f7f1671 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -864,20 +864,6 @@ static Aml *build_vmbus_device_aml(VMBusBridge *vmbus_bridge) return dev; } -static void build_isa_devices_aml(Aml *table) -{ - bool ambiguous; - Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous); - Aml *scope; - - assert(obj && !ambiguous); - - scope = aml_scope("_SB.PCI0.ISA"); - isa_build_aml(ISA_BUS(obj), scope); - - aml_append(table, scope); -} - static void build_dbg_aml(Aml *table) { Aml *field; @@ -1263,15 +1249,22 @@ static void build_q35_isa_bridge(Aml *table) { Aml *dev; Aml *scope; + Object *obj; + bool ambiguous; + + /* + * temporarily fish out isa bridge, build_q35_isa_bridge() will be dropped + * once PCI is converted to AcpiDevAmlIf and would be ble to generate + * AML for bridge itself + */ + obj = object_resolve_path_type("", TYPE_ICH9_LPC_DEVICE, &ambiguous); + assert(obj && !ambiguous); scope = aml_scope("_SB.PCI0"); dev = aml_device("ISA"); aml_append(dev, aml_name_decl("_ADR", aml_int(0x001F0000))); - /* ICH9 PCI to ISA irq remapping */ - aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG, - aml_int(0x60), 0x0C)); - + call_dev_aml_func(DEVICE(obj), dev); aml_append(scope, dev); aml_append(table, scope); } @@ -1531,7 +1524,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, build_hpet_aml(dsdt); } build_q35_isa_bridge(dsdt); - build_isa_devices_aml(dsdt); if (pm->pcihp_bridge_en) { build_x86_acpi_pci_hotplug(dsdt, pm->pcihp_io_base); } diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c index 5f143dc..4553b59 100644 --- a/hw/isa/lpc_ich9.c +++ b/hw/isa/lpc_ich9.c @@ -50,6 +50,7 @@ #include "hw/core/cpu.h" #include "hw/nvram/fw_cfg.h" #include "qemu/cutils.h" +#include "hw/acpi/acpi_aml_interface.h" /*****************************************************************************/ /* ICH9 LPC PCI to ISA bridge */ @@ -803,12 +804,28 @@ static void ich9_send_gpe(AcpiDeviceIf *adev, AcpiEventStatusBits ev) acpi_send_gpe_event(&s->pm.acpi_regs, s->pm.irq, ev); } +static void build_ich9_isa_aml(AcpiDevAmlIf *adev, Aml *scope) +{ + BusChild *kid; + ICH9LPCState *s = ICH9_LPC_DEVICE(adev); + BusState *bus = BUS(s->isa_bus); + + /* ICH9 PCI to ISA irq remapping */ + aml_append(scope, aml_operation_region("PIRQ", AML_PCI_CONFIG, + aml_int(0x60), 0x0C)); + + QTAILQ_FOREACH(kid, &bus->children, sibling) { + call_dev_aml_func(DEVICE(kid->child), scope); + } +} + static void ich9_lpc_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(klass); + AcpiDevAmlIfClass *amldevc = ACPI_DEV_AML_IF_CLASS(klass); set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); dc->reset = ich9_lpc_reset; @@ -833,6 +850,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data) adevc->ospm_status = ich9_pm_ospm_status; adevc->send_event = ich9_send_gpe; adevc->madt_cpu = pc_madt_cpu_entry; + amldevc->build_dev_aml = build_ich9_isa_aml; } static const TypeInfo ich9_lpc_info = { @@ -845,6 +863,7 @@ static const TypeInfo ich9_lpc_info = { { TYPE_HOTPLUG_HANDLER }, { TYPE_ACPI_DEVICE_IF }, { INTERFACE_CONVENTIONAL_PCI_DEVICE }, + { TYPE_ACPI_DEV_AML_IF }, { } } }; |