POST Codes
There are two types of POST codes: Progress Codes and Error Codes. Progress Codes are designed to show the execution point while booting or executing services. Error Codes are designed to halt on exceptional (fatal) error conditions.
Component Codes
The Component Code is an unsigned integer value that is assigned by the build process. The following tables describe the various ranges of component codes:
The Component Code is assigned to an individual component (or driver) using the POSTCODE= option in the DSC file. If the value that follows POSTCODE= is a hexadecimal or decimal number, in the range
Table 4-4. Component Codes
Range | Description |
OEM Components. These values are reserved for OEM components | |
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These values are reserved for SecureCore Tiano™ core components. | |
| POSTCODE_CC_VARIABLE_SERVICES (0x20) |
| POSTCODE_CC_KEYBOARD_CONTROLLER (0x21) |
| POSTCODE_CC_BOOT_MODE (0x22) |
| POSTCODE_CC_S3_SUPPORT (0x23) |
| POSTCODE_CC_TCG (0x24) |
| POSTCODE_CC_HDD_PASSWORD (0x25) |
| POSTCODE_CC_CPU_IO (0x26) |
| POSTCODE_CC_BOOT_SCRIPT (0x27) |
| POSTCODE_CC_STATUS_CODE (0x28) |
| POSTCODE_CC_DATA_HUB (0x29) |
| POSTCODE_CC_HII_DATABASE (0x2a) |
| POSTCODE_CC_RESET (0x2b) |
| POSTCODE_CC_METRONOME (0x2c) |
| POSTCODE_CC_INTERRUPT_CONTROLLER (0x2d) |
| POSTCODE_CC_DIAGNOSTIC_SUMMARY (0x2e) |
| POSTCODE_CC_SMBIOS (0x2f) |
| POSTCODE_CC_SMM_COMMUNICATION (0x30) |
| POSTCODE_CC_SMM_RUNTIME (0x31) |
| POSTCODE_CC_SMM_SERVICES (0x32) |
| POSTCODE_CC_FIRMWARE_DEVICE (0x33) |
| POSTCODE_CC_CAPSULE_SERVICES (0x34) |
| POSTCODE_CC_MONOTONIC_COUNTER (0x35) |
| POSTCODE_CC_SMBIOS_EVENT_LOG (0x36) |
| POSTCODE_CC_RTC (0x37) |
| POSTCODE_CC_BOOT_MANAGER (0x38) |
| POSTCODE_CC_VGA (0x39) |
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Troubleshooting |
