description: >
    Implement the Soft Power Off function. On receiving the SMS_ATTN from BMC,
    Host will respond with a GetMessageFlags command and the BMC will respond
    with a static data indicating that Event Message Buffer is full. Host then
    sends 'ReadEvent' command and BMC responds with an architected packet
    mentioning that the type is SOFT_OFF. Host then goes ahead and starts to
    quiesce. Once that is done, Host will send a hard power off command to BMC
    and then BMC will issue a hard power off.

properties:
    - name: ResponseReceived
      type: enum[self.HostResponse]
      default: NotApplicable
      description: >
          When the response is received for 'SMS_ATN', this is set to
          'SoftOffReceived' and is set to 'HostShutdown' when Host sends a Power
          Off request.

enumerations:
    - name: HostResponse
      description: >
          Possible response types from Host for a Soft Power Off function.
      values:
          - name: NotApplicable
            description: >
                Default initial value.
          - name: SoftOffReceived
            description: >
                Host has received the SMS_ATN from BMC indicating that Host
                needs to do a Soft Power Off.
          - name: HostShutdown
            description: >
                Host has sufficiently quiesced and acknowledged the shutdown
                request such that the hardware shutdown sequence can safely be
                performed.