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ACPI!ACPIBuildProcessDeviceGenericEvalStrict函数对节点ISA的处理没有_EJD子节点

news 2026/3/26 21:24:49

1: kd> g
Breakpoint 5 hit
eax=00000009 ebx=00000009 ecx=89984198 edx=00000001 esi=89984188 edi=80b019f4
eip=f73fb911 esp=f78aef68 ebp=f78aef84 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!ACPIBuildProcessGenericList+0x4d:
f73fb911 ff55f4 call dword ptr [ebp-0Ch] ss:0010:f78aef78={ACPI!ACPIBuildProcessDeviceGenericEvalStrict (f73fafda)}
1: kd> t
eax=00000009 ebx=00000009 ecx=89984198 edx=00000001 esi=89984188 edi=80b019f4
eip=f73fafda esp=f78aef64 ebp=f78aef84 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!ACPIBuildProcessDeviceGenericEvalStrict:
f73fafda 55 push ebp
1: kd> kc
#
00 ACPI!ACPIBuildProcessDeviceGenericEvalStrict
01 ACPI!ACPIBuildProcessGenericList
02 ACPI!ACPIBuildDeviceDpc
03 nt!KiRetireDpcList
04 nt!KiDispatchInterrupt
WARNING: Frame IP not in any known module. Following frames may be wrong.
05 0x0
1: kd> dv
BuildRequest = 0x89984188
status = 0n8

1: kd> dx -r1 ((ACPI!_ACPI_BUILD_REQUEST *)0x89984188)
((ACPI!_ACPI_BUILD_REQUEST *)0x89984188) : 0x89984188 [Type: _ACPI_BUILD_REQUEST *]
[+0x000] ListEntry [Type: _LIST_ENTRY]
[+0x008] Signature : 0x5f534750 [Type: unsigned long]
[+0x00c] Flags : 0x1 [Type: unsigned long]
[+0x00c] UFlags [Type: __unnamed]
[+0x010] WorkDone : 0x1 [Type: unsigned long]
[+0x014] CurrentWorkDone : 0x9 [Type: unsigned long]
[+0x018] NextWorkDone : 0x2 [Type: unsigned long]
[+0x01c] BuildContext : 0x899c0a88 [Type: void *]
[+0x020] Status : 0 [Type: long]
[+0x024] CurrentObject : 0x899b22bc [Type: _NSObj *]
[+0x028] CallBack : 0x0 [Type: void (*)(void *,void *,long)]
[+0x02c] CallBackContext : 0x0 [Type: void *]
[+0x030] DeviceRequest [Type: __unnamed]
[+0x030] RunRequest [Type: __unnamed]
[+0x030] SynchronizeRequest [Type: __unnamed]
[+0x044] Integer : 0xf [Type: unsigned long]
[+0x044] String : 0xf : Unable to read memory at Address 0xf [Type: unsigned char *]
[+0x044] TargetListEntry : 0xf [Type: _LIST_ENTRY *]

1: kd> x acpi!AcpiBuildDevicePowerNameLookup
f7438068 ACPI!AcpiBuildDevicePowerNameLookup = unsigned long [23]
1: kd> dx -r1 (*((ACPI!unsigned long (*)[23])0xf7438068))
(*((ACPI!unsigned long (*)[23])0xf7438068)) [Type: unsigned long [23]]
[0] : 0x0 [Type: unsigned long]
[1] : 0x0 [Type: unsigned long]
[2] : 0x0 [Type: unsigned long]
[3] : 0x0 [Type: unsigned long]
[4] : 0x0 [Type: unsigned long]
[5] : 0x0 [Type: unsigned long]
[6] : 0x0 [Type: unsigned long]
[7] : 0x0 [Type: unsigned long]
[8] : 0x0 [Type: unsigned long]
[9] : 0x444a455f [Type: unsigned long]
[10] : 0x0 [Type: unsigned long]
[11] : 0x5752505f [Type: unsigned long]
[12] : 0x0 [Type: unsigned long]
[13] : 0x3052505f [Type: unsigned long]
[14] : 0x0 [Type: unsigned long]
[15] : 0x3152505f [Type: unsigned long]
[16] : 0x0 [Type: unsigned long]
[17] : 0x3252505f [Type: unsigned long]
[18] : 0x0 [Type: unsigned long]
[19] : 0x5352435f [Type: unsigned long]
[20] : 0x0 [Type: unsigned long]
[21] : 0x4353505f [Type: unsigned long]
[22] : 0x0 [Type: unsigned long]
1: kd> dd 0xf7438068
f7438068 00000000 00000000 00000000 00000000
f7438078 00000000 00000000 00000000 00000000
f7438088 00000000 444a455f 00000000 5752505f
f7438098 00000000 3052505f 00000000 3152505f
f74380a8 00000000 3252505f 00000000 5352435f
f74380b8 00000000 4353505f 00000000 f73fb840
f74380c8 00000000 00000000 00000000 f73fb840
f74380d8 00000000 f73fb94c f73fb98a f73fba36
1: kd> db 0xf7438068
f7438068 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
f7438078 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
f7438088 00 00 00 00 5f 45 4a 44-00 00 00 00 5f 50 52 57 ...._EJD...._PRW
f7438098 00 00 00 00 5f 50 52 30-00 00 00 00 5f 50 52 31 ...._PR0...._PR1
f74380a8 00 00 00 00 5f 50 52 32-00 00 00 00 5f 43 52 53 ...._PR2...._CRS
f74380b8 00 00 00 00 5f 50 53 43-00 00 00 00 40 b8 3f f7 ...._PSC....@.?.
f74380c8 00 00 00 00 00 00 00 00-00 00 00 00 40 b8 3f f7 ............@.?.
f74380d8 00 00 00 00 4c b9 3f f7-8a b9 3f f7 36 ba 3f f7 ....L.?...?.6.?.

Device (ISA)
{
Name (_ADR, 0x00070000) // _ADR: Address
Device (MBRD)
{

//
// Base everything on the current amount of workDone
//
objectName = AcpiBuildDevicePowerNameLookup[BuildRequest->CurrentWorkDone];

//
// Does this object exists? 不存在_EJD对象。
//
BuildRequest->CurrentObject = ACPIAmliGetNamedChild(
deviceExtension->AcpiObject,
objectName
); eax=00000000

1: kd> p
eax=00000000 ebx=899c0a88 ecx=899b2278 edx=00000001 esi=89984188 edi=899841cc
eip=f73fb00f esp=f78aef50 ebp=f78aef60 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!ACPIBuildProcessDeviceGenericEvalStrict+0x35:
f73fb00f 85c0 test eax,eax

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