Datasheet

Intel® Management Engine Subsystem Registers (D22:F[3:0])
562 Intel® Xeon® Processor D-1500 Product Family
Datasheet - Volume 1 of 4: Integrated Platform Controller Hub
March 2015
17.1.1.15 GMES—General Intel
®
ME Status Register (Intel
®
MEI 1—D22:F0)
Address Offset: 48h–4Bh Attribute: RO
Default Value: 00000000h Size: 32 bits
5:0 Intel ME UMA Size (MUSZ)—RO. This field reflect Intel Server Platform Services’ FW desired size
of Intel ME UMA memory region. This field is set by Intel Server Platform Services FW prior to core
power bring up allowing BIOS to initialize memory.
000000b = 0 MB, No memory allocated to Intel ME UMA
000001b = 1 MB
000010b = 2 MB
000100b = 4 MB
001000b = 8 MB
010000b = 16 MB
100000b = 32 MB
Bit Description
Bit Description
31 EOP Status: This bit presents the Intel
®
ME notion of EOP status.
If BIOS encounters this bit set to ‘1’ during POST it signals an error in platform power flow.
30:28 Infrastructure Progress Code: This field identifies the infrastructure progress code.
0 – ROM – Intel
®
ME is in ROM phase
1 – BUP – Intel
®
ME is in BRINGUP phase
2 – uKernel –Intel
®
ME is in Micro Kernel phase
3 – Policy Module – Intel
®
ME is in Policy Module phase
4 – Other Module – Intel
®
ME is loading modules in MO or M3 Operating State
27:16 Extended Status Data: These bits provide extended status data for the current state of operation
of the firmware. Or, if the firmware is in a fatal error state, these bits provide extended error code
information.
15:13 Firmware Heartbeat: This number increments approximately every second if Intel
®
ME firmware is
running.
12 Intel
®
ME Target Image Boot Fault
0 – target image loaded successfully
1 – target image boot failed, switched to backup image or recovery image
11:8 Reserved
7 Warm Reset Request: If this bit is set, Intel
®
ME informs BIOS that a warm reset is requested by
Intel
®
ME.
6 MFS Failure: If this bit is set Intel
®
ME informs the BIOS that Intel
®
ME File System failure has
been detected during recent Intel
®
ME boot.
5:4 Reserved
3:1 Recovery Cause: : If ME1.HFS.Current State indicates that Intel
®
ME firmware is running in
recovery mode these bits provide the cause of this mode:
0 – Intel
®
ME recovery jumper asserted
1 – Security strap override jumper asserted
2 – Recovery forced with IPMI command
3 – Invalid flash configuration, either:
- flash master access permissions configuration is wrong
- VSCC entry is missing or wrong
- flash erase block size in Intel
®
ME region configuration
4 – Intel
®
ME internal error
Intel
®
ME could not start in operational mode because of some firmware problems.
5..7 – reserved for future extensions
0 BIST in Progress: If this bit is set Intel
®
ME Built In Self-Test is in progress.