BDS & Specific action:
Post Code | Description |
|
|
0x00 | Report the legacy boot is happening |
0x12 | Wake up the Aps |
|
|
0x13 | Initialize SMM Private Data and relocate BSP SMBASE |
|
|
0x21 | PC init begin at the stage1 |
|
|
0x27 | Report every memory range do the hard ware ECC init |
|
|
0x28 | Report status code of every memory range |
|
|
0x50 | Get the root bridge handle |
|
|
0x51 | Notify pci bus driver starts to program the resource |
|
|
0x58 | Reset the host controller |
|
|
0x5A | IdeBus begin initialization |
|
|
0x79 | Report that the remote terminal is being disabled |
|
|
0x7A | Report that the remote terminal is being enabled |
|
|
0x90 | Keyboard reset |
|
|
0x91 | USB Keyboard disable |
|
|
0x92 | Keyboard detection |
|
|
0x93 | Report that the usb keyboard is being enabled |
|
|
0x94 | Clear the keyboard buffer |
|
|
0x95 | Init Keyboard |
|
|
0x98 | Mouse reset |
|
|
0x99 | Mouse disable |
|
|
0x9A | Detect PS2 mouse |
|
|
0x9B | Report that the mouse is being enabled |
|
|
0xB8 | Peripheral removable media reset(ex:IsaFloppy, USB device) |
|
|
0xB9 | Peripheral removable media disable |
|
|
0xBB | Peripheral removable media enable |
|
|
0xE4 | Report Status Code here for DXE_ENTRY_POINT once it is available |
|
|
0xF8 | Report that ExitBootServices() has been called |
|
|
0xF9 | Runtime driver set virtual address map |
|
|
Each PEIM entry point used in 80_PORT
| Post Code | Description |
|
|
|
|
|
| 0x00 |
|
|
| 0x01 | PEI_EVENT_LOG |
|
|
|
|
|
| 0xA1 | PEI_OEM_SERVICE |
|
|
|
|
|
| 0xA2 | PEI_SIO_INIT |
|
|
|
|
|
| 0xA3 | PEI_MONO_STATUS_CODE |
|
|
|
|
|
| 0xA4 | PEI_CPU_IO_PCI_CFG |
|
|
|
|
|
| 0x06 | PEI_CPU_IO |
|
|
|
|
|
| 0x07 | PEI_PCI_CFG |
|
|
|
|
|
| 0xA5 | PEI_CPU_PEIM |
|
|
|
|
|
| 0xA6 | PEI_PLATFORM_STAGE1 |
|
|
|
|
|
| 0xA7 | PEI_VARIABLE |
|
|
|
|
|
|
|
|
|
Chapter 4 | 172 |
