[BUG] bitland-mifs-wmi: Power profiles not working on Xiaomi Mi NoteBook Ultra

Bheda Rahul <[email protected]>
Newsgroups org.kernel.vger.platform-driver-x86
Message-ID <CAEX=435pEyPHPjJgQnJUJLL8JJD65RsRa7Sjbx4NedZFG80dtA@mail.gmail.com> 
Hello,

I'm running Fedora with Linux kernel 7.1.8 on my Xiaomi Mi NoteBook Ultra,
and the new bitland-mifs-wmi driver loaded automatically for my system.

i run
cat /sys/firmware/acpi/platform_profile_choices it gives output
low-power balanced balanced-performance performance

If I try to switch to Performance mode (echo performance >
/sys/firmware/acpi/platform_profile), I get an error: Operation not
supported.
If I try to switch to Quiet mode (echo low-power >
/sys/firmware/acpi/platform_profile), it doesn't give an error, but it
silently fails. If I check the file immediately after, it still says
balanced.
I have attached my dmidecode output and my ACPI tables (acpidump) in case
you want to look at my hardware's specific implementation.
(and also an AI analysis if u want to look otherwise forget it)
Please let me know if there's any testing I can do to help get this model
supported!

Thanks for your work on the driver.
dmidecode.txt (text/plain, 21.2 KB) 
# dmidecode 3.7
Getting SMBIOS data from sysfs.
SMBIOS 3.3.0 present.
Table at 0x439DC000.

Handle 0x0000, DMI type 0, 26 bytes
Platform Firmware Information
	Vendor: TIMI
	Version: RMATG5B0P0F0F
	Release Date: 10/15/2021
	Address: 0xE0000
	Runtime Size: 128 KiB
	ROM Size: 8 MiB
	Characteristics:
		PCI is supported
		Firmware is upgradeable
		Firmware shadowing is allowed
		Boot from CD is supported
		Selectable boot is supported
		EDD is supported
		Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
		Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
		5.25"/360 kB floppy services are supported (int 13h)
		5.25"/1.2 MB floppy services are supported (int 13h)
		3.5"/720 kB floppy services are supported (int 13h)
		3.5"/2.88 MB floppy services are supported (int 13h)
		8042 keyboard services are supported (int 9h)
		CGA/mono video services are supported (int 10h)
		ACPI is supported
		USB legacy is supported
		BIOS boot specification is supported
		Targeted content distribution is supported
		UEFI is supported
	Platform Firmware Revision: 1.15
	Embedded Controller Firmware Revision: 1.15

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: TIMI
	Product Name: Mi NoteBook Ultra
	Version:  
	Serial Number: 35045/21VE00349
	UUID: 20210815-3887-d5de-3dd9-3887d5de3ddd
	Wake-up Type: Power Switch
	SKU Number: TM2017-35045
	Family: Mi Laptop

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
	Manufacturer: TIMI
	Product Name: TM2017
	Version: V1.0
	Serial Number: MMG5S00001194184P00A6
	Asset Tag: Type2 - Board Asset Tag
	Features:
		Board is a hosting board
		Board is replaceable
	Location In Chassis: Type2 - Board Chassis Location
	Chassis Handle: 0x0003
	Type: Motherboard
	Contained Object Handles: 0

Handle 0x0003, DMI type 3, 22 bytes
Chassis Information
	Manufacturer: TIMI
	Type: Notebook
	Lock: Not Present
	Version:  
	Serial Number: 35045/21VE00349
	Asset Tag: Chassis Asset Tag
	Boot-up State: Safe
	Power Supply State: Safe
	Thermal State: Safe
	Security Status: None
	OEM Information: 0x00000000
	Height: Unspecified
	Number Of Power Cords: 1
	Contained Elements: 0
	SKU Number: Chassis SKU

Handle 0x0004, DMI type 4, 48 bytes
Processor Information
	Socket Designation: U3E1
	Type: Central Processor
	Family: Core i5
	Manufacturer: Intel(R) Corporation
	ID: C1 06 08 00 FF FB EB BF
	Signature: Type 0, Family 6, Model 140, Stepping 1
	Flags:
		FPU (Floating-point unit on-chip)
		VME (Virtual mode extension)
		DE (Debugging extension)
		PSE (Page size extension)
		TSC (Time stamp counter)
		MSR (Model specific registers)
		PAE (Physical address extension)
		MCE (Machine check exception)
		CX8 (CMPXCHG8 instruction supported)
		APIC (On-chip APIC hardware supported)
		SEP (Fast system call)
		MTRR (Memory type range registers)
		PGE (Page global enable)
		MCA (Machine check architecture)
		CMOV (Conditional move instruction supported)
		PAT (Page attribute table)
		PSE-36 (36-bit page size extension)
		CLFSH (CLFLUSH instruction supported)
		DS (Debug store)
		ACPI (ACPI supported)
		MMX (MMX technology supported)
		FXSR (FXSAVE and FXSTOR instructions supported)
		SSE (Streaming SIMD extensions)
		SSE2 (Streaming SIMD extensions 2)
		SS (Self-snoop)
		HTT (Multi-threading)
		TM (Thermal monitor supported)
		PBE (Pending break enabled)
	Version: 11th Gen Intel(R) Core(TM) i5-11300H @ 3.10GHz
	Voltage: 0.8 V
	External Clock: 100 MHz
	Max Speed: 4400 MHz
	Current Speed: 3100 MHz
	Status: Populated, Enabled
	Upgrade: Other
	L1 Cache Handle: 0x0006
	L2 Cache Handle: 0x0007
	L3 Cache Handle: 0x0008
	Serial Number: To Be Filled By O.E.M.
	Asset Tag: To Be Filled By O.E.M.
	Part Number: To Be Filled By O.E.M.
	Core Count: 4
	Core Enabled: 4
	Thread Count: 8
	Characteristics:
		64-bit capable
		Multi-Core
		Hardware Thread
		Execute Protection
		Enhanced Virtualization
		Power/Performance Control

Handle 0x0005, DMI type 7, 27 bytes
Cache Information
	Socket Designation: L1 Cache
	Configuration: Enabled, Not Socketed, Level 1
	Operational Mode: Write Back
	Location: Internal
	Installed Size: 0 KiB
	Maximum Size: 0 KiB
	Supported SRAM Types:
		Synchronous
	Installed SRAM Type: Synchronous
	Speed: Unknown
	Error Correction Type: Parity
	System Type: Data
	Associativity: 12-way Set-associative

Handle 0x0006, DMI type 7, 27 bytes
Cache Information
	Socket Designation: L1 Cache
	Configuration: Enabled, Not Socketed, Level 1
	Operational Mode: Write Back
	Location: Internal
	Installed Size: 0 KiB
	Maximum Size: 0 KiB
	Supported SRAM Types:
		Synchronous
	Installed SRAM Type: Synchronous
	Speed: Unknown
	Error Correction Type: Parity
	System Type: Instruction
	Associativity: 8-way Set-associative

Handle 0x0007, DMI type 7, 27 bytes
Cache Information
	Socket Designation: L2 Cache
	Configuration: Enabled, Not Socketed, Level 2
	Operational Mode: Write Back
	Location: Internal
	Installed Size: 0 KiB
	Maximum Size: 0 KiB
	Supported SRAM Types:
		Synchronous
	Installed SRAM Type: Synchronous
	Speed: Unknown
	Error Correction Type: Single-bit ECC
	System Type: Unified
	Associativity: Other

Handle 0x0008, DMI type 7, 27 bytes
Cache Information
	Socket Designation: L3 Cache
	Configuration: Enabled, Not Socketed, Level 3
	Operational Mode: Write Back
	Location: Internal
	Installed Size: 0 KiB
	Maximum Size: 0 KiB
	Supported SRAM Types:
		Synchronous
	Installed SRAM Type: Synchronous
	Speed: Unknown
	Error Correction Type: Multi-bit ECC
	System Type: Unified
	Associativity: 8-way Set-associative

Handle 0x0009, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J1A1
	Internal Connector Type: None
	External Reference Designator: Keyboard
	External Connector Type: PS/2
	Port Type: Keyboard Port

Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J1A1
	Internal Connector Type: None
	External Reference Designator: Mouse
	External Connector Type: PS/2
	Port Type: Mouse Port

Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J2A1
	Internal Connector Type: None
	External Reference Designator: TV OUT
	External Connector Type: Mini DIN
	Port Type: Video Port

Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J2A2
	Internal Connector Type: None
	External Reference Designator: CRT
	External Connector Type: DB-15 female
	Port Type: Video Port

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J2A2
	Internal Connector Type: None
	External Reference Designator: COM 1
	External Connector Type: DB-9 male
	Port Type: Serial Port 16550A Compatible

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J3A1
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J3A1
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J3A1
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J5A1
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J5A1
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J5A2
	Internal Connector Type: None
	External Reference Designator: USB
	External Connector Type: Access Bus (USB)
	Port Type: USB

Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J5A1
	Internal Connector Type: None
	External Reference Designator: Network
	External Connector Type: RJ-45
	Port Type: Network Port

Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J9G2
	Internal Connector Type: On Board Floppy
	External Reference Designator: OnBoard Floppy Type
	External Connector Type: None
	Port Type: Other

Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J7J1
	Internal Connector Type: On Board IDE
	External Reference Designator: OnBoard Primary IDE
	External Connector Type: None
	Port Type: Other

Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J30
	Internal Connector Type: None
	External Reference Designator: Microphone In
	External Connector Type: Mini Jack (headphones)
	Port Type: Audio Port

Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J30
	Internal Connector Type: None
	External Reference Designator: Line In
	External Connector Type: Mini Jack (headphones)
	Port Type: Audio Port

Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
	Internal Reference Designator: J30
	Internal Connector Type: None
	External Reference Designator: Speaker Out
	External Connector Type: Mini Jack (headphones)
	Port Type: Audio Port

Handle 0x001A, DMI type 9, 19 bytes
System Slot Information
	Designation: J6C1
	Type: PCI Express x1
	Data Bus Width: 1x or x1
	Current Usage: Available
	Length: Other
	ID: 1
	Characteristics:
		PME signal is supported
		Hot-plug devices are supported
	Bus Address: 0000:00:1c.0
	Data Bus Width (Base): 8
	Peer Devices: 0

Handle 0x001B, DMI type 9, 19 bytes
System Slot Information
	Designation: J6D2
	Type: PCI Express x1
	Data Bus Width: 1x or x1
	Current Usage: Available
	Length: Other
	ID: 2
	Characteristics:
		PME signal is supported
		Hot-plug devices are supported
	Bus Address: 0000:00:1c.1
	Data Bus Width (Base): 8
	Peer Devices: 0

Handle 0x001C, DMI type 9, 19 bytes
System Slot Information
	Designation: J7C1
	Type: PCI Express x1
	Data Bus Width: 1x or x1
	Current Usage: Available
	Length: Other
	ID: 3
	Characteristics:
		PME signal is supported
		Hot-plug devices are supported
	Bus Address: 0000:00:1c.2
	Data Bus Width (Base): 8
	Peer Devices: 0

Handle 0x001D, DMI type 9, 19 bytes
System Slot Information
	Designation: J7D1
	Type: PCI Express x1
	Data Bus Width: 1x or x1
	Current Usage: Available
	Length: Other
	ID: 4
	Characteristics:
		PME signal is supported
		Hot-plug devices are supported
	Bus Address: 0000:00:1c.3
	Data Bus Width (Base): 8
	Peer Devices: 0

Handle 0x001E, DMI type 9, 19 bytes
System Slot Information
	Designation: J8C1
	Type: PCI Express x4
	Data Bus Width: 4x or x4
	Current Usage: Available
	Length: Other
	ID: 5
	Characteristics:
		PME signal is supported
		Hot-plug devices are supported
	Bus Address: 0000:00:1c.4
	Data Bus Width (Base): 10
	Peer Devices: 0

Handle 0x001F, DMI type 11, 5 bytes
OEM Strings
	String 1: SSD1
	String 2: 25211F801783        
	String 3: HDD
	String 4: None
	String 5:  
	String 6:  

Handle 0x0020, DMI type 12, 5 bytes
System Configuration Options
	Option 1: ConfigOptions1
	Option 2: ConfigOptions2
	Option 3: ConfigOptions3

Handle 0x0021, DMI type 13, 22 bytes
Firmware Language Information
	Language Description Format: Long
	Installable Languages: 8
		en|US|iso8859-1,0
		fr|FR|iso8859-1,0
		zh|TW|unicode,0
		ja|JP|unicode,0
		it|IT|iso8859-1,0
		es|ES|iso8859-1,0
		de|DE|iso8859-1,0
		pt|PT|iso8859-1,0
	Currently Installed Language: en|US|iso8859-1,0

Handle 0x0022, DMI type 14, 8 bytes
Group Associations
	Name: $MEI
	Items: 1
		0x003A (OEM-specific)

Handle 0x0041, DMI type 14, 23 bytes
Group Associations
	Name: Firmware Version Info
	Items: 6
		0x003B (OEM-specific)
		0x003C (OEM-specific)
		0x003D (OEM-specific)
		0x003E (OEM-specific)
		0x003F (OEM-specific)
		0x0040 (OEM-specific)

Handle 0x0023, DMI type 15, 29 bytes
System Event Log
	Area Length: 0 bytes
	Header Start Offset: 0x0000
	Header Length: 8192 bytes
	Data Start Offset: 0x2000
	Access Method: General-purpose non-volatile data functions
	Access Address: 0x0000
	Status: Valid, Not Full
	Change Token: 0x12345678
	Header Format: OEM-specific
	Supported Log Type Descriptors: 3
	Descriptor 1: POST memory resize
	Data Format 1: None
	Descriptor 2: POST error
	Data Format 2: POST results bitmap
	Descriptor 3: Log area reset/cleared
	Data Format 3: None

Handle 0x0024, DMI type 16, 23 bytes
Physical Memory Array
	Location: System Board Or Motherboard
	Use: System Memory
	Error Correction Type: None
	Maximum Capacity: 128 GiB
	Error Information Handle: No Error
	Number Of Devices: 8

Handle 0x0025, DMI type 17, 92 bytes
Memory Device
	Array Handle: 0x0024
	Error Information Handle: No Error
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 8 GiB
	Form Factor: Row Of Chips
	Set: None
	Locator: Controller0-ChannelA
	Bank Locator: BANK 0
	Type: DDR4
	Type Detail: Synchronous
	Speed: 3200 MT/s
	Manufacturer: Samsung
	Serial Number: 00000000
	Asset Tag: 9876543210
	Part Number: M471A1G44AB0-CWE    
	Rank: 1
	Configured Memory Speed: 3200 MT/s
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: 1.2 V
	Memory Technology: DRAM
	Memory Operating Mode Capability: Volatile memory
	Firmware Version: Not Specified
	Module Manufacturer ID: Bank 1, Hex 0xCE
	Module Product ID: Unknown
	Memory Subsystem Controller Manufacturer ID: Unknown
	Memory Subsystem Controller Product ID: Unknown
	Non-Volatile Size: None
	Volatile Size: 8 GiB
	Cache Size: None
	Logical Size: None

Handle 0x0026, DMI type 17, 92 bytes
Memory Device
	Array Handle: 0x0024
	Error Information Handle: No Error
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 8 GiB
	Form Factor: Row Of Chips
	Set: None
	Locator: Controller1-ChannelA
	Bank Locator: BANK 0
	Type: DDR4
	Type Detail: Synchronous
	Speed: 3200 MT/s
	Manufacturer: Samsung
	Serial Number: 00000000
	Asset Tag: 9876543210
	Part Number: M471A1G44AB0-CWE    
	Rank: 1
	Configured Memory Speed: 3200 MT/s
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: 1.2 V
	Memory Technology: DRAM
	Memory Operating Mode Capability: Volatile memory
	Firmware Version: Not Specified
	Module Manufacturer ID: Bank 1, Hex 0xCE
	Module Product ID: Unknown
	Memory Subsystem Controller Manufacturer ID: Unknown
	Memory Subsystem Controller Product ID: Unknown
	Non-Volatile Size: None
	Volatile Size: 8 GiB
	Cache Size: None
	Logical Size: None

Handle 0x0027, DMI type 19, 31 bytes
Memory Array Mapped Address
	Starting Address: 0x00000000000
	Ending Address: 0x003FFFFFFFF
	Range Size: 16 GiB
	Physical Array Handle: 0x0024
	Partition Width: 2

Handle 0x0028, DMI type 20, 35 bytes
Memory Device Mapped Address
	Starting Address: 0x00000000000
	Ending Address: 0x001FFFFFFFF
	Range Size: 8 GiB
	Physical Device Handle: 0x0025
	Memory Array Mapped Address Handle: 0x0027
	Partition Row Position: Unknown
	Interleave Position: 1
	Interleaved Data Depth: 1

Handle 0x0029, DMI type 20, 35 bytes
Memory Device Mapped Address
	Starting Address: 0x00000000000
	Ending Address: 0x001FFFFFFFF
	Range Size: 8 GiB
	Physical Device Handle: 0x0000
	Memory Array Mapped Address Handle: 0x0027
	Partition Row Position: Unknown
	Interleave Position: 1
	Interleaved Data Depth: 1

Handle 0x002A, DMI type 21, 7 bytes
Built-in Pointing Device
	Type: Touch Pad
	Interface: PS/2
	Buttons: 4

Handle 0x002B, DMI type 22, 26 bytes
Portable Battery
	Location: Fake
	Manufacturer: -Virtual Battery 0-
	Manufacture Date: 08/08/2010
	Serial Number: MB100000004AE17D004J
	Name: Battery
	Chemistry: Zinc Air
	Design Capacity: Unknown
	Design Voltage: Unknown
	SBDS Version: Not Specified
	Maximum Error: Unknown
	OEM-specific Information: 0x00000000

Handle 0x002C, DMI type 24, 5 bytes
Hardware Security
	Power-On Password Status: Disabled
	Keyboard Password Status: Not Implemented
	Administrator Password Status: Enabled
	Front Panel Reset Status: Not Implemented

Handle 0x002D, DMI type 26, 24 bytes
Voltage Probe
	Description: Voltage Probe Description
	Location: Unknown
	Status: Unknown
	Maximum Value: Unknown
	Minimum Value: Unknown
	Resolution: Unknown
	Tolerance: Unknown
	Accuracy: Unknown
	OEM-specific Information: 0x00008000
	Nominal Value: 0.000 V

Handle 0x002E, DMI type 27, 15 bytes
Cooling Device
	Temperature Probe Handle: 0x002F
	Type: Fan
	Status: OK
	OEM-specific Information: 0x00000000
	Nominal Speed: 8192 rpm
	Description: Cooling Device Description

Handle 0x002F, DMI type 28, 24 bytes
Temperature Probe
	Description: Temperature Probe Description
	Location: Unknown
	Status: Unknown
	Maximum Value: Unknown
	Minimum Value: Unknown
	Resolution: Unknown
	Tolerance: Unknown
	Accuracy: Unknown
	OEM-specific Information: 0x00008000
	Nominal Value: 0.0 deg C

Handle 0x0030, DMI type 32, 11 bytes
System Boot Information
	Status: No errors detected

Handle 0x0031, DMI type 39, 22 bytes
System Power Supply
	Location: OEM Define 0
	Name: OEM Define 1
	Manufacturer: OEM Define 2
	Serial Number: OEM Define 3
	Asset Tag: OEM Define 4
	Model Part Number: OEM Define 5
	Revision: OEM Define 6
	Max Power Capacity: 75 W
	Status: Not Present
	Type: Regulator
	Input Voltage Range Switching: Auto-switch
	Plugged: No
	Hot Replaceable: No

Handle 0x0032, DMI type 40, 17 bytes
Additional Information 1
	Referenced Handle: 0x000e
	Referenced Offset: 0x05
	String: PCIExpressx16
	Value: 0xaa
Additional Information 2
	Referenced Handle: 0x0000
	Referenced Offset: 0x05
	String: Compiler Version: VC 9.0
	Value: 0x00

Handle 0x0033, DMI type 41, 11 bytes
Onboard Device
	Reference Designation: IGD
	Type: Video
	Status: Disabled
	Type Instance: 1
	Bus Address: 0000:00:02.0

Handle 0x0034, DMI type 43, 31 bytes
TPM Device
	Vendor ID: INTC
	Specification Version: 2.0
	Firmware Revision: 600.7
	Description: TPM Device
	Characteristics:
		TPM Device characteristics not supported
	OEM-specific Information: 0x00000000

Handle 0x0035, DMI type 128, 8 bytes
OEM-specific Type
	Header and Data:
		80 08 35 00 55 AA 55 AA
	Strings:
		Oem Type 128 Test 1
		Oem Type 128 Test 2

Handle 0x0036, DMI type 129, 8 bytes
OEM-specific Type
	Header and Data:
		81 08 36 00 01 01 02 01
	Strings:
		Insyde_ASF_001
		Insyde_ASF_002

Handle 0x0037, DMI type 130, 20 bytes
OEM-specific Type
	Header and Data:
		82 14 37 00 24 41 4D 54 01 01 01 01 01 A5 BF 02
		C0 00 01 00

Handle 0x0038, DMI type 131, 64 bytes
OEM-specific Type
	Header and Data:
		83 40 38 00 31 00 00 00 00 00 00 00 00 00 00 00
		F8 00 82 A0 00 00 00 00 01 00 00 00 00 00 0F 00
		AA 06 17 00 00 00 00 00 FE 00 FF FF 00 00 00 00
		00 FF 00 00 E6 01 00 00 76 50 72 6F 00 00 00 00

Handle 0x0039, DMI type 136, 6 bytes
OEM-specific Type
	Header and Data:
		88 06 39 00 FF FF

Handle 0x003A, DMI type 219, 106 bytes
OEM-specific Type
	Header and Data:
		DB 6A 3A 00 01 04 01 45 02 00 90 06 01 10 8B 20
		00 00 00 00 40 00 00 00 00 00 00 00 00 A0 40 02
		FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
		FF FF FF FF FF FF FF FF 03 00 00 00 80 00 00 00
		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
		00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00
		00 00 00 00 00 00 00 00 00 00
	Strings:
		MEI1
		MEI2
		MEI3
		MEI4

Handle 0x003B, DMI type 221, 26 bytes
OEM-specific Type
	Header and Data:
		DD 1A 3B 00 03 01 00 0A 00 3D 20 00 02 00 00 00
		00 8A 00 03 00 FF FF FF FF FF
	Strings:
		Reference Code - CPU
		uCode Version
		TXT ACM version

Handle 0x003C, DMI type 221, 26 bytes
OEM-specific Type
	Header and Data:
		DD 1A 3C 00 03 01 00 0A 00 3D 20 00 02 00 00 00
		00 00 00 03 04 0F 00 17 AA 06
	Strings:
		Reference Code - ME
		MEBx version
		ME Firmware Version
		Consumer SKU

Handle 0x003D, DMI type 221, 47 bytes
OEM-specific Type
	Header and Data:
		DD 2F 3D 00 06 01 00 0A 00 3D 20 00 02 03 FF FF
		FF FF FF 04 00 FF FF FF 20 00 05 00 FF FF FF 20
		00 06 00 02 46 00 00 00 07 00 04 00 00 00 00
	Strings:
		Reference Code - PCH
		PCH-CRID Status
		Disabled
		PCH-CRID Original Value
		PCH-CRID New Value
		OPROM - RST - RAID
		PCH Hsio Version

Handle 0x003E, DMI type 221, 82 bytes
OEM-specific Type
	Header and Data:
		DD 52 3E 00 0B 01 00 0A 00 3D 20 00 02 00 02 00
		02 00 00 03 00 0A 00 3D 20 00 04 05 FF FF FF FF
		FF 06 00 00 00 00 01 00 07 00 00 00 00 01 00 08
		00 FF FF FF FF FF 09 00 11 01 04 00 00 0A 00 00
		00 00 F8 00 0B 00 29 00 00 00 00 0C 00 FF FF FF
		FF FF
	Strings:
		Reference Code - SA - System Agent
		Reference Code - MRC
		SA - PCIe Version
		SA-CRID Status
		Disabled
		SA-CRID Original Value
		SA-CRID New Value
		OPROM - VBIOS
		IO Manageability Engine FW Version
		PHY Build Version
		Thunderbolt(TM) FW Version
		System Agent Manageability Engine FW Version

Handle 0x003F, DMI type 221, 12 bytes
OEM-specific Type
	Header and Data:
		DD 0C 3F 00 01 01 00 04 00 00 00 00
	Strings:
		FSP Binary Version

Handle 0x0040, DMI type 221, 89 bytes
OEM-specific Type
	Header and Data:
		DD 59 40 00 0C 01 00 FF FF FF FF FF 02 00 FF FF
		FF FF FF 03 04 FF FF FF FF FF 05 06 FF FF FF FF
		FF 07 08 FF FF FF FF FF 09 00 00 00 00 00 00 0A
		00 FF FF FF FF FF 0B 00 01 0F 00 00 00 0C 00 00
		17 00 70 10 0D 00 FF FF FF FF FF 0E 00 00 07 03
		00 00 0F 00 00 02 00 0F 00
	Strings:
		Lan Phy Version
		Sensor Firmware Version
		Debug Mode Status
		Disabled
		Performance Mode Status
		Disabled
		Debug Use USB(Disabled:Serial)
		Disabled
		ICC Overclocking Version
		UNDI Version
		EC FW Version
		GOP Version
		Royal Park Version
		Platform Version
		Client Silicon Version

Handle 0xFEFF, DMI type 127, 4 bytes
End Of Table
acpi_tables.tar.gz (application/gzip, 101.4 KB) - not displayed
analysis_results_send.md (text/markdown, 7.7 KB) 
# Xiaomi Mi NoteBook Ultra — Definitive ACPI Power Profile Bypass

---

## 1. The MIFS WMI Device — Found in `ssdt12.dsl`

**File:** [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl)
**OEM ID:** `XMCC` / **OEM Table:** `XMCC1806`

### Device Location

[ssdt12.dsl:345-348](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L345-L348)
```asl
Device (WMID)
{
    Name (_HID, "PNP0C14")     // WMI Mapper
    Name (_UID, "XAPe")        // Unique ID
```

**Full ACPI Path:** `\_SB.PC00.WMID`

---

## 2. `_WDG` Buffer — Complete Parse

[ssdt12.dsl:376-393](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L376-L393)

| # | GUID | Object ID | Type | Maps To |
|---|------|-----------|------|---------|
| 1 | `46C93E13-EE9B-4262-8488-563BCA757FEF` | `0x20` | EVENT | `_WED(0x20)` → [EV20()](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L621) |
| 2 | `FA78E245-2C0F-4CA1-91CF-15F34E474850` | `0x21` | EVENT | `_WED(0x21)` → [EV21()](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L820) |
| 3 | `1DCEAF0A-4D63-44BB-BD0C-0D6281BFDDC5` | `0x22` | EVENT | `_WED(0x22)` → [EV22()](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L826) |
| 4 | `3F9E3C26-B077-4F86-91F5-37FF64D8C7ED` | `0x23` | EVENT | `_WED(0x23)` → [EV23()](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L832) |
| 5 | **`B60BFB48-3E5B-49E4-A0E9-8CFFE1B3434B`** | **`AA`** | **METHOD** | **[WMAA()](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L612)** |
| 6 | `05901221-D566-11D1-B2F0-00A0C9062910` | `AB` | DATA | [WQAB](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L453) (binary MOF) |

---

## 3. Control Method — `WMAA`

[ssdt12.dsl:612-619](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L612-L619)
```asl
Method (WMAA, 3, NotSerialized)
{
    CTID = 0x4141           // "AA" — method ID tag
    WSMI (Arg1, Arg2)       // Triggers SMI with the 32-byte buffer
    CLMU (Zero, 0x20)       // Clear output buffer
    MEBU = WMIB             // Copy response from shared memory
    Return (MEBU)           // Return 32-byte response
}
```

### How `WSMI` Works

[ssdt12.dsl:446-451](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L446-L451)
```asl
Method (WSMI, 2, NotSerialized)
{
    MTID = Arg0             // Method ID byte → SystemMemory @ 0x45AA2000
    WMIB = Arg1             // 32-byte input buffer → SystemMemory @ 0x45AA2001
    WSSP = 0xD0             // Trigger SMI via SystemIO port (PSSP)
}
```

**Execution path:** The 32-byte buffer is written to a SystemMemory OperationRegion at `0x45AA2000`, then an SMI (System Management Interrupt) `0xD0` is triggered. The **SMM firmware handler** (invisible to the OS) processes the command, reads/writes EC registers, and places the response back in `WMIB`. `WMAA` then copies this to `MEBU` and returns it.

---

## 4. Power Mode Values — Confirmed from ASL

The `EV20()` method handles Fn+K (event function `0x16`) and reveals the **exact STNM cycle** on this hardware:

[ssdt12.dsl:625-658](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L625-L658)
```asl
Case (0x16)   // Fn+K press — performance mode toggle
{
    FNKN = \_SB.PC00.LPCB.H_EC.FUNR (0x16)  // Read current STNM
    Local0 = FNKN

    If ((Local0 == Zero))          // Currently BALANCED (0)
    {
        EVBU [0x02] = 0x02         // Report: switching to QUIET
        FNKN = 0x02
        ECWT (0x02, RefOf (STNM)) // Write 0x02 → STNM
    }
    ElseIf ((Local0 == One))       // Currently PERFORMANCE (1)
    {
        If ((MITE == Zero))        // No turbo capability
        {
            EVBU [0x02] = 0x02     // → QUIET
            FNKN = 0x02
        }
        Else                       // Has turbo (MITE=1)
        {
            EVBU [0x02] = 0x03     // → FULL-SPEED
            FNKN = Zero            // But write 0 to STNM??
        }
        ECWT (FNKN, RefOf (STNM))
    }
    Else                           // Currently QUIET (2) or anything else
    {
        EVBU [0x02] = One          // Report: switching to PERFORMANCE
        FNKN = One
        ECWT (FNKN, RefOf (STNM)) // Write 0x01 → STNM
    }
}
```

### Your Hardware's STNM Values (Confirmed from ASL)

| STNM Value | Mode | Fn+K Cycles To |
|:---:|---|---|
| **`0x00`** | **Balanced** | → Quiet (`0x02`) |
| **`0x01`** | **Performance** | → Quiet (`0x02`) or Full-Speed (if `MITE=1`) |
| **`0x02`** | **Quiet** | → Performance (`0x01`) |


### WMI Buffer Values (per bitland-mifs-wmi protocol)

The WMI protocol uses command `0x08` (SystemPerMode) with these values in the InData buffer:

| InData[4] Value | Mode |
|:---:|---|
| `0x00` | Balanced |
| `0x01` | Performance |
| `0x02` | Quiet |
| `0x03` | Full-Speed |

---

## 5. NTDG — Thermal Policy Dispatch

[ssdt12.dsl:94-177](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L94-L177)

`NTDG(STNM, ACIN)` controls the dGPU power state based on temperature thresholds and current mode:

| STNM | ACIN | TSR2 > | Action | TSR2 ≤ | Action |
|:---:|:---:|:---:|---|:---:|---|
| 0 (Balanced) | 1 (AC) | `0x40` (64°C) | GPU→D1 | `0x38` (56°C) | GPU→D1 |
| 1 (Perf) | 1 (AC) | `0x3C` (60°C) | GPU→D3 | `0x34` (52°C) | GPU→D1 |
| 2 (Quiet) | 1 (AC) | `0x3A` (58°C) | GPU→D5 | `0x34` (52°C) | GPU→D3 |
| 0 (Balanced) | 0 (Batt) | `0x3C` (60°C) | GPU→D3 | `0x32` (50°C) | GPU→D2 |
| 1 (Perf) | 0 (Batt) | `0x3A` (58°C) | GPU→D4 | `0x32` (50°C) | GPU→D2 |
| 2 (Quiet) | 0 (Batt) | `0x38` (56°C) | GPU→D5 | `0x32` (50°C) | GPU→D4 |

*(D1-D5 = Notify codes 0xD1-0xD5 sent to the dGPU at `\_SB.PC00.RP05.PXSX`)*

---

## 6. Complete Execution Path

```mermaid
graph TD
    subgraph "Method 1: WMI (via WMAA)"
        A["acpi_call: \_SB.PC00.WMID.WMAA<br>32-byte buffer with cmd=0x08"] --> B["WSMI: copies buffer to<br>SystemMemory @ 0x45AA2000"]
        B --> C["SMI 0xD0 triggered<br>SMM firmware handles command"]
        C --> D["SMM writes to EC STNM<br>Returns response in WMIB"]
    end

    subgraph "Method 2: Direct EC (via ECWT)"
        E["acpi_call: \_SB.PC00.LPCB.H_EC.ECWT<br>(value, RefOf STNM)"] --> F["EC receives new STNM<br>at offset 0x7E"]
    end

    subgraph "Method 3: Raw EC Register (via WTER)"
        G["acpi_call: \_SB.PC00.LPCB.H_EC.WTER<br>0x007E value"] --> F
    end

    D --> H["EC applies new PL1/PL2<br>and fan curves"]
    F --> H
    H --> I["EC fires SCI _Q96"]
    I --> J["NTDP reads STNM,<br>sets ODV0/ODV1, notifies IETM"]
    J --> K["NTDG adjusts dGPU power<br>based on temp thresholds"]
```

---




---

## 12. ASL Code Reference Map

| Component | File | Lines |
|-----------|------|-------|
| WMI Device `WMID` (PNP0C14) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L345-L348) | 345–348 |
| `_WDG` buffer (6 entries) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L376-L393) | 376–393 |
| `WMAA` (control method) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L612-L619) | 612–619 |
| `WSMI` (SMI trigger) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L446-L451) | 446–451 |
| `EV20` (event handler, Fn+K) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L621-L818) | 621–818 |
| `FUNR` (EC register reader) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L52-L70) | 52–70 |
| `NTDP` (thermal policy entry) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L72-L92) | 72–92 |
| `NTDG` (dGPU power control) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L94-L177) | 94–177 |
| `_Q96` (Fn+K EC query) | [ssdt12.dsl](file:///home/rahul/Projects/dsl/ssdt/ssdt12.dsl#L179-L182) | 179–182 |
| EC Device `H_EC` | [dsdt.dsl](file:///home/rahul/Projects/dsl/dsdt.dsl#L20519) | 20519 |
| EC `STNM` (offset 0x7E) | [dsdt.dsl](file:///home/rahul/Projects/dsl/dsdt.dsl#L20632) | 20632 |
| `RDER` / `WTER` | [dsdt.dsl](file:///home/rahul/Projects/dsl/dsdt.dsl#L20784-L20871) | 20784–20871 |

---
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