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Chapter 4 139
Core POST Code Table
The following table details the core POST codes and functions used in SecureCore.
0xA0xx Launch BIOS ACMSclean PEI chipset/MRC
0xA4xx Launch BIOS ACMScheck PEI chipset/MRC
0xE5 Wait for ME ready DXE HECI/iAMT
0xE6 ME Ready DXE HECI/iAMT
POST
Code
Function Phase Component
0x00 Early Microcode update for CAR CEI / SEC Core
0x01 Enable CAR CEI / SEC Core
0x02 CAR Done, initial stack CEI / SEC Core
0xEE unknown CPU ID to load uCode CEI / SEC CPU
0xEF unknown DT CPU to load uCode CEI / SEC CPU
0xnn File count found in a volume PEI Core
0x11 Debug Test driver for debug test PPI 1 (If install debugTest
driver)
PEI Core
0x22 Debug Test driver for debug test PPI 2 (If install debugTest
driver)
PEI Core
0x33 Debug Test driver for debug test PPI 3 (If install debugTest
driver)
PEI Core
0x44 Entry point of loadfile PEI Core
0x88 Entry point of apMuLoader PEI Core
0x80 A PEIM found PEI Core
0x82 PEIM not dispatched yet PEI Core
0x84 PEIM satisfies depex PEI Core
0x86 Image loaded but fail on security PEI Core
0x88 Executing a PEIM PEI Core
0x8A Processing notify event for newly installed PPI PEI Core
0x8C Handing off to next phase (DXE) PEI Core
0x8F Fail to hand off to next phase, system halt PEI Core
0x90 All PEIM dispatched! Going to DxeIpl PEI Core
0xCC AP Micro-code update PEI Core
0x20 S3 resume entry S3 resume Core
0x21 Start running Boot-time bootscripts S3 resume Core
0x22 Start running Run-time bootscripts S3 resume Core
0x23 End of S3 resume, jump back to Waking vector S3 resume Core
0x80 Initialize the chipset Crisis Recovery Core
0x81 Initialize the bridge Crisis Recovery Core
0x82 Initialize the CPU Crisis Recovery Core
0x89 Set Huge Segment Crisis Recovery Core
0x83 Initialize system timer Crisis Recovery Core
0x84 Initialize system I/O Crisis Recovery Core
0x88 Initialize Multi Processor Crisis Recovery Core
POST Code Function Phase Component