Intel Active Management Technology Information (Type 130)

Source: Intel AMT Implementation and Reference Guide, "AMT Information Table Parameter Definitions"; MeshAgent, modules/smbios.js; and the dumps of the data corpus.

Tells whether the platform supports Intel Active Management Technology (AMT), and which of its features are enabled. The structure is told by the $AMT signature at offset 0x04.

The guide gives the flags of the features as 0 when disabled, 1 when enabled, and values from 2 on as not applicable, and puts a structure version of two bytes after the signature, which no firmware of the data corpus holds. The flags are not consistent with each other on every platform, e.g. some give the network as enabled while AMT is not supported, so they are best taken as the firmware reports them rather than as the state of the platform.

Table 1. Intel Active Management Technology Information structure
Offset	Version	Name	Length	Value	Description
`0x00`	2.0+	Type	`BYTE`	`130`	Intel Active Management Technology Information indicator
`0x01`	2.0+	Length	`BYTE`	`0x14` or `0x18`	Length of the structure
`0x02`	2.0+	Handle	`WORD`	Varies
`0x04`	2.0+	Signature	4 BYTEs	`$AMT`
`0x08`	2.0+	AMT Supported	`BYTE`	`BOOLEAN`
`0x09`	2.0+	AMT Enabled	`BYTE`	`BOOLEAN`
`0x0A`	2.0+	IDE-R Enabled	`BYTE`	`BOOLEAN`	Storage redirection: IDE redirection (IDE-R), or USB redirection (USB-R) from AMT 11.0 onwards
`0x0B`	2.0+	SOL Enabled	`BYTE`	`BOOLEAN`	Serial over LAN
`0x0C`	2.0+	Network Enabled	`BYTE`	`BOOLEAN`	Network interface of AMT
`0x0D`	2.0+	Extended Data	`BYTE`	Varies	Left to the platform vendor, `0xA5` in all known data
`0x0E`	2.0+	OEM Capabilities 1	`BYTE`	`BITFIELD`	Features of AMT the platform supports, see below
`0x0F`	2.0+	OEM Capabilities 2	`BYTE`	`ENUM`	Bits 0 to 3: terminal emulation of Serial over LAN, see below. Bits 4 to 7 are reserved
`0x10`	2.0+	OEM Capabilities 3	`BYTE`	`BITFIELD`	Bits 0 to 5 are reserved, bit 6: Remote Secure Erase is supported, bit 7: the BIOS supports Secure Boot
`0x11`	2.0+	OEM Capabilities 4	`BYTE`	`BITFIELD`	Targets of the remote boot the platform supports, see below
`0x12`	2.0+	KVM Enabled	`BYTE`	`BOOLEAN`	Keyboard, video and mouse redirection
`0x13`	2.0+	Reserved	`BYTE`	`0`
`0x14`	2.0+	Reserved	4 BYTEs	Varies	Present in the structures of length `0x18`, whose meaning is not established

Table 2. OEM capabilities 1
Bits	Meaning
0	Storage redirection is supported
1	Serial over LAN is supported
2	The BIOS can be reflashed remotely
3	The setup of the BIOS can be entered remotely
4	The BIOS can be paused remotely
5	Booting from the floppy disk can be prevented
6	Booting from the CD can be prevented
7	Reserved, while most firmware of the data corpus sets it

Table 3. Terminal emulation
Value	Meaning
1	VT52
2	VT100+
3	VT-UTF8
4	PC-ANSI
5-15	Reserved

Table 4. OEM capabilities 4
Bits	Meaning
0	Thunderbolt dock is supported
1	Booting over HTTPS is supported
2	Booting to the local pre-boot authentication (PBA) is supported
3	Booting to the Windows recovery environment (WinRE) is supported
4	Booting without Secure Boot is supported
5	Coexistence with Wi-Fi is supported
6-7	Reserved