OPAL_SYNC_HOST_REBOOT

#define OPAL_SYNC_HOST_REBOOT                        87

static int64_t opal_sync_host_reboot(void);

This OPAL call halts asynchronous operations in preparation for something like kexec. It will halt DMA as well notification of some events (such as a new error log being available for retreival).

It’s meant to be called in a loop until OPAL_SUCCESS is returned.

Returns

OPAL_SUCCESS
Success!
OPAL_BUSY_EVENT
not yet complete, call opal_sync_host_reboot() again, possibly with a short delay.
OPAL_BUSY
Call opal_poll_events() and then retry opal_sync_host_reboot