tree 208644e2b04aab208e2edf5b3c0bec6632719451
parent 33a532dbb0af04f7776edfc2069f70b4d6695489
author Jason M. Bills <jason.m.bills@linux.intel.com> 1565298079 -0700
committer Jason Bills <jason.m.bills@linux.intel.com> 1574710286 +0000

Use Host Off state for warm reset notification

This change adds detection and handling for warm reset in the
power control state machine, and makes the warm reset check as
well as the transition to off states set the Host State to Off.

This allows anyone monitoring the Host State to be notified when
the host has stopped running due to a reset or shutdown.

Tested:
From UEFI shell ran
reset -w (warm reset)
   Confirmed that the warm reset was detected and the system
   returned to the On state.
reset -c (cold reset)
   Confirmed that a warm reset was not detected and the system
   returned to the On state.
reset -s (shutdown)
   Confirmed that a warm reset was not detected and the system
   moved to the Off state.

Also pressed the reset button to confirm that the IPMI restart
cause is correctly updated for warm reset vs. reset button.

Change-Id: Ie2757ac808439c59f901d1eef5ddc5a28ef492ec
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>