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acpi: pvpanic-isa: use AcpiDevAmlIfClass:build_dev_aml to provide device's AML

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.. and clean up not longer needed conditionals in DSTD build code
pvpanic-isa AML will be fetched and included when ISA bridge will
build its own AML code (including attached devices).

Expected AML change:
   the device under separate _SB.PCI0.ISA scope is moved directly
   under Device(ISA) node.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-29-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 09:53:33 -04:00 committed by Michael S. Tsirkin
parent fd7bcffe59
commit ff36e90e7c
3 changed files with 42 additions and 46 deletions
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37
hw/i386/acpi-build.c
View File

@ -31,7 +31,6 @@
#include "hw/cxl/cxl.h"
#include "hw/core/cpu.h"
#include "target/i386/cpu.h"
#include "hw/misc/pvpanic.h"
#include "hw/timer/hpet.h"
#include "hw/acpi/acpi-defs.h"
#include "hw/acpi/acpi.h"
@ -120,7 +119,6 @@ typedef struct AcpiMiscInfo {
#endif
const unsigned char *dsdt_code;
unsigned dsdt_size;
uint16_t pvpanic_port;
} AcpiMiscInfo;
typedef struct AcpiBuildPciBusHotplugState {
@ -305,7 +303,6 @@ static void acpi_get_misc_info(AcpiMiscInfo *info)
#ifdef CONFIG_TPM
info->tpm_version = tpm_get_version(tpm_find());
#endif
info->pvpanic_port = pvpanic_port();
}
/*
@ -1798,40 +1795,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
aml_append(dsdt, scope);
}
if (misc->pvpanic_port) {
scope = aml_scope("\\_SB.PCI0.ISA");
dev = aml_device("PEVT");
aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0001")));
crs = aml_resource_template();
aml_append(crs,
aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)
);
aml_append(dev, aml_name_decl("_CRS", crs));
aml_append(dev, aml_operation_region("PEOR", AML_SYSTEM_IO,
aml_int(misc->pvpanic_port), 1));
field = aml_field("PEOR", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
aml_append(field, aml_named_field("PEPT", 8));
aml_append(dev, field);
/* device present, functioning, decoding, shown in UI */
aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
method = aml_method("RDPT", 0, AML_NOTSERIALIZED);
aml_append(method, aml_store(aml_name("PEPT"), aml_local(0)));
aml_append(method, aml_return(aml_local(0)));
aml_append(dev, method);
method = aml_method("WRPT", 1, AML_NOTSERIALIZED);
aml_append(method, aml_store(aml_arg(0), aml_name("PEPT")));
aml_append(dev, method);
aml_append(scope, dev);
aml_append(dsdt, scope);
}
sb_scope = aml_scope("\\_SB");
{
Object *pci_host;

42
hw/misc/pvpanic-isa.c
View File

@ -22,6 +22,7 @@
#include "qom/object.h"
#include "hw/isa/isa.h"
#include "standard-headers/linux/pvpanic.h"
#include "hw/acpi/acpi_aml_interface.h"
OBJECT_DECLARE_SIMPLE_TYPE(PVPanicISAState, PVPANIC_ISA_DEVICE)
@ -63,6 +64,41 @@ static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp)
isa_register_ioport(d, &ps->mr, s->ioport);
}
static void build_pvpanic_isa_aml(AcpiDevAmlIf *adev, Aml *scope)
{
Aml *crs, *field, *method;
PVPanicISAState *s = PVPANIC_ISA_DEVICE(adev);
Aml *dev = aml_device("PEVT");
aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0001")));
crs = aml_resource_template();
aml_append(crs,
aml_io(AML_DECODE16, s->ioport, s->ioport, 1, 1)
);
aml_append(dev, aml_name_decl("_CRS", crs));
aml_append(dev, aml_operation_region("PEOR", AML_SYSTEM_IO,
aml_int(s->ioport), 1));
field = aml_field("PEOR", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
aml_append(field, aml_named_field("PEPT", 8));
aml_append(dev, field);
/* device present, functioning, decoding, shown in UI */
aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
method = aml_method("RDPT", 0, AML_NOTSERIALIZED);
aml_append(method, aml_store(aml_name("PEPT"), aml_local(0)));
aml_append(method, aml_return(aml_local(0)));
aml_append(dev, method);
method = aml_method("WRPT", 1, AML_NOTSERIALIZED);
aml_append(method, aml_store(aml_arg(0), aml_name("PEPT")));
aml_append(dev, method);
aml_append(scope, dev);
}
static Property pvpanic_isa_properties[] = {
DEFINE_PROP_UINT16(PVPANIC_IOPORT_PROP, PVPanicISAState, ioport, 0x505),
DEFINE_PROP_UINT8("events", PVPanicISAState, pvpanic.events,
@ -73,10 +109,12 @@ static Property pvpanic_isa_properties[] = {
static void pvpanic_isa_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
AcpiDevAmlIfClass *adevc = ACPI_DEV_AML_IF_CLASS(klass);
dc->realize = pvpanic_isa_realizefn;
device_class_set_props(dc, pvpanic_isa_properties);
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
adevc->build_dev_aml = build_pvpanic_isa_aml;
}
static const TypeInfo pvpanic_isa_info = {
@ -85,6 +123,10 @@ static const TypeInfo pvpanic_isa_info = {
.instance_size = sizeof(PVPanicISAState),
.instance_init = pvpanic_isa_initfn,
.class_init = pvpanic_isa_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_ACPI_DEV_AML_IF },
{ },
},
};
static void pvpanic_register_types(void)

9
include/hw/misc/pvpanic.h
View File

@ -33,13 +33,4 @@ struct PVPanicState {
void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size);
static inline uint16_t pvpanic_port(void)
{
Object *o = object_resolve_path_type("", TYPE_PVPANIC_ISA_DEVICE, NULL);
if (!o) {
return 0;
}
return object_property_get_uint(o, PVPANIC_IOPORT_PROP, NULL);
}
#endif