PCI configuration space and I/O debugging subcommands

The subcommands in this category are used to debug I/O errors and PCI configuration space errors.

dpcib, dpcih, and dpciw subcommand
The dpcib (display PCI byte), dpcih (display PCI halfword), and dpciw (display PCI word) subcommands read data from the PCI Configuration Space.
mpcib, mpcih, and mpciw subcommands
The mpcib (modify PCI byte), mpcih (modify PCI halfword), and mpciw (modify PCI word) subcommands write data to the PCI Configuration Space.
buserr subcommand
The buserr subcommand allows PCI bus error injection and manual exercise of EEH capabilities on a PCI slot.
businfo subcommand
The businfo subcommand displays information about all registered buses or about a specified bus.

Parent topic: KDB kernel debugger and kdb command