tree 4bd22a47cf21996d33e1e5e51924d409abb0937c
parent 47488feb70d3fea5325174a391451e6e1d0c3cf1
author Nicholas Piggin <npiggin@gmail.com> 1683979945 +1000
committer Reza Arbab <arbab@linux.ibm.com> 1686076332 -0500

ipmi: flush the ipmi message queue before booting a kernel

Bring ipmi to a consistent state before booting a kernel by flushing
all outstanding messages. The OS may not start kicking the IPMI state
machine for some time.

For example, without this change, when booting in QEMU, the IPMI command
issued by ipmi_wdt_final_reset() to disable the watchdog is not sent to
the BMC before the OS boots, effectively leaving the watchdog enabled
until the OS begins to drive OPAL pollers.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Stewart Smith <stewart@flamingspork.com>
Signed-off-by: Reza Arbab <arbab@linux.ibm.com>