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acpi: ich9-smb: add support for AcpiDevAmlIf interface

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wire AcpiDevAmlIf interface to build ich9-smb and its slave
devices AML. It will be used by followup patches to switch
from creating AML in ad-hoc way to a more systematic one
that will scan present devices and ask them to provide
their AML code like it's done with ISA devices.

This patch is a partial conversion, as it only fetches
AML from slave devices attached to its I2C bus.

The conversion will be completed when PCI bus is
switched to use AcpiDevAmlIf and build_smb0() could be
dropped.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-16-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2022-06-08 09:53:20 -04:00 committed by Michael S. Tsirkin
parent 0f5b3fd748
commit 4b66ddcc4d
1 changed files with 15 additions and 0 deletions
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15
hw/i2c/smbus_ich9.c
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@ -29,6 +29,7 @@
#include "hw/i386/ich9.h"
#include "qom/object.h"
#include "hw/acpi/acpi_aml_interface.h"
OBJECT_DECLARE_SIMPLE_TYPE(ICH9SMBState, ICH9_SMB_DEVICE)
@ -94,10 +95,22 @@ static void ich9_smbus_realize(PCIDevice *d, Error **errp)
&s->smb.io);
}
static void build_ich9_smb_aml(AcpiDevAmlIf *adev, Aml *scope)
{
BusChild *kid;
ICH9SMBState *s = ICH9_SMB_DEVICE(adev);
BusState *bus = BUS(s->smb.smbus);
QTAILQ_FOREACH(kid, &bus->children, sibling) {
call_dev_aml_func(DEVICE(kid->child), scope);
}
}
static void ich9_smb_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
AcpiDevAmlIfClass *adevc = ACPI_DEV_AML_IF_CLASS(klass);
k->vendor_id = PCI_VENDOR_ID_INTEL;
k->device_id = PCI_DEVICE_ID_INTEL_ICH9_6;
@ -112,6 +125,7 @@ static void ich9_smb_class_init(ObjectClass *klass, void *data)
* pc_q35_init()
*/
dc->user_creatable = false;
adevc->build_dev_aml = build_ich9_smb_aml;
}
static void ich9_smb_set_irq(PMSMBus *pmsmb, bool enabled)
@ -143,6 +157,7 @@ static const TypeInfo ich9_smb_info = {
.class_init = ich9_smb_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ TYPE_ACPI_DEV_AML_IF },
{ },
},
};