Documentation/driver-api/dcdbas.rst

9 systems management software such as Dell OpenManage to perform system
10 management interrupts and host control actions (system power cycle or
24 System Management Interrupt
28 management information via a system management interrupt (SMI).  The SMI data
29 buffer must reside in 32-bit address space, and the physical address of the
33 software to perform these system management interrupts::
44 2) Write system management command to smi_data.
47 4) Read system management command response from smi_data.
51 Host Control Action
54 Dell OpenManage supports a host control feature that allows the administrator
55 to perform a power cycle or power off of the system after the OS has finished
56 shutting down.  On some Dell systems, this host control feature requires that
60 to schedule the driver to perform a power cycle or power off host control
61 action after the system has finished shutting down:
68 power off host control action using this driver:
70 1) Write host control action to be performed to host_control_action.
72 3) Write "1" to host_control_on_shutdown to enable host control action.
74    (Driver will perform host control SMI when it is notified that the OS
78 Host Control SMI Type
82 perform a power cycle or power off host control action:
85 PowerEdge System    Host Control SMI Type