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ACPI!ACPIRootIrpStartDevice函数在ACPI!ACPIInitStartACPI函数后设置_SB的设备状态为Started

news 2026/3/26 17:54:34

NTSTATUS
ACPIRootIrpStartDevice(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
)

0: kd> p
eax=00000000 ebx=899bf5b0 ecx=e71d4552 edx=80a3d105 esi=00000000 edi=89981a18
eip=f744f524 esp=f789a288 ebp=f789a2a8 iopl=0 nv up ei pl zr na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00000246
ACPI!ACPIRootIrpStartDevice+0x13a:
f744f524 c7878800000002000000 mov dword ptr [edi+88h],2 ds:0023:89981aa0=00000000
0: kd> dt acpi!_device_Extension 89981a18
+0x000 Flags : 0x4061e000`00200010
+0x000 UFlags : __unnamed
+0x008 Signature : 0x5f534750
+0x00c DebugFlags : 0
+0x010 DispatchTable : 0xf743826c IRP_DISPATCH_TABLE
+0x014 WorkContext : WORK_QUEUE_CONTEXT
+0x014 Fdo : _FDO_DEVICE_EXTENSION
+0x014 Filter : _FILTER_DEVICE_EXTENSION
+0x014 Pdo : _PDO_DEVICE_EXTENSION
+0x058 WorkQueue : EXTENSION_WORKER
+0x058 Button : BUTTON_EXTENSION
+0x058 Thermal : THERMAL_EXTENSION
+0x058 LinkNode : LINK_NODE_EXTENSION
+0x058 Dock : DOCK_EXTENSION
+0x058 Processor : _PROCESSOR_DEVICE_EXTENSION
+0x088 DeviceState : 0 ( Stopped )
+0x08c PreviousState : 0 ( Stopped )
+0x090 PowerInfo : _ACPI_POWER_INFO
+0x10c DeviceID : 0x899bfed0 "ACPI\PNP0C08"
+0x10c Address : 0x899bfed0
+0x110 InstanceID : 0x899bfeb8 "0x5F534750"
+0x114 ResourceList : 0x899874d0 _CM_RESOURCE_LIST
+0x118 PnpResourceList : (null)
+0x11c OutstandingIrpCount : 0n2
+0x120 ReferenceCount : 0n12
+0x124 HibernatePathCount : 0n0
+0x128 RemoveEvent : (null)
+0x12c AcpiObject : 0x899af0f0 _NSObj
+0x130 DeviceObject : 0x89981b98 _DEVICE_OBJECT
+0x134 TargetDeviceObject : 0x899c1de0 _DEVICE_OBJECT
+0x138 PhysicalDeviceObject : 0x899c1de0 _DEVICE_OBJECT
+0x13c ParentExtension : (null)
+0x140 ChildDeviceList : _LIST_ENTRY [ 0x899c0ea0 - 0x89906fe8 ]
+0x148 SiblingDeviceList : _LIST_ENTRY [ 0x89981b60 - 0x89981b60 ]
+0x150 EjectDeviceHead : _LIST_ENTRY [ 0x89981b68 - 0x89981b68 ]
+0x158 EjectDeviceList : _LIST_ENTRY [ 0x89981b70 - 0x89981b70 ]

//
// Start ACPI
//
status = ACPIInitStartACPI( DeviceObject );

//
// Update the status of the device
//
if (NT_SUCCESS(status)) {

deviceExtension->DeviceState = Started;

}

0: kd> gu
eax=00000000 ebx=899c1de0 ecx=00000000 edx=80b18958 esi=899c1008 edi=f789a36c
eip=80c95f56 esp=f789a33c ebp=f789a36c iopl=0 nv up ei ng nz ac po cy
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00000293
nt!IopStartDevice+0x78:
80c95f56 5f pop edi
0: kd> dt acpi!_device_Extension 89981a18
+0x000 Flags : 0x4061e000`00200010
+0x000 UFlags : __unnamed
+0x008 Signature : 0x5f534750
+0x00c DebugFlags : 0
+0x010 DispatchTable : 0xf743826c IRP_DISPATCH_TABLE
+0x014 WorkContext : WORK_QUEUE_CONTEXT
+0x014 Fdo : _FDO_DEVICE_EXTENSION
+0x014 Filter : _FILTER_DEVICE_EXTENSION
+0x014 Pdo : _PDO_DEVICE_EXTENSION
+0x058 WorkQueue : EXTENSION_WORKER
+0x058 Button : BUTTON_EXTENSION
+0x058 Thermal : THERMAL_EXTENSION
+0x058 LinkNode : LINK_NODE_EXTENSION
+0x058 Dock : DOCK_EXTENSION
+0x058 Processor : _PROCESSOR_DEVICE_EXTENSION
+0x088 DeviceState : 2 ( Started )
+0x08c PreviousState : 0 ( Stopped )
+0x090 PowerInfo : _ACPI_POWER_INFO
+0x10c DeviceID : 0x899bfed0 "ACPI\PNP0C08"
+0x10c Address : 0x899bfed0
+0x110 InstanceID : 0x899bfeb8 "0x5F534750"
+0x114 ResourceList : 0x899874d0 _CM_RESOURCE_LIST
+0x118 PnpResourceList : (null)
+0x11c OutstandingIrpCount : 0n1
+0x120 ReferenceCount : 0n12
+0x124 HibernatePathCount : 0n0
+0x128 RemoveEvent : (null)
+0x12c AcpiObject : 0x899af0f0 _NSObj
+0x130 DeviceObject : 0x89981b98 _DEVICE_OBJECT
+0x134 TargetDeviceObject : 0x899c1de0 _DEVICE_OBJECT
+0x138 PhysicalDeviceObject : 0x899c1de0 _DEVICE_OBJECT
+0x13c ParentExtension : (null)
+0x140 ChildDeviceList : _LIST_ENTRY [ 0x899c0ea0 - 0x89906fe8 ]
+0x148 SiblingDeviceList : _LIST_ENTRY [ 0x89981b60 - 0x89981b60 ]
+0x150 EjectDeviceHead : _LIST_ENTRY [ 0x89981b68 - 0x89981b68 ]
+0x158 EjectDeviceList : _LIST_ENTRY [ 0x89981b70 - 0x89981b70 ]