Exercise - SBL Shell/CLI¶
Note
In this exercise, we’ll learn how to execute SBL Shell Commands.
- Used
help<ENTER>
to list the available commands
You can execute SBL with the following steps:
- Working on Command Prompt
- Execute cmd on Shell by type-in:
exit - Exit the shell help - List supported commands hob - List HOBs mem - Read or write system memory mmap - Display memory map perf - Display performance data boot - Print or modify the OS boot option list cpuid - Read CPU specific information io - Read or write I/O ports msr - Read or write model specific registers mtrr - Display current MTRR configuration pci - Display PCI devices (example) reset - Reset the system ucode - Display microcode version
Example:
pci - Display PCI devices

Tip
Exit Shell by close QEMU