historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/skiboot/doc/opal-api/opal-sync-host-reboot-87.rst
2024-01-16 11:20:27 -06:00

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.. _OPAL_SYNC_HOST_REBOOT:
OPAL_SYNC_HOST_REBOOT
=====================
.. code-block:: c
#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 :ref:`OPAL_SUCCESS` is returned.
Returns
-------
:ref:`OPAL_SUCCESS`
Success!
:ref:`OPAL_BUSY_EVENT`
not yet complete, call opal_sync_host_reboot() again, possibly with a short delay.
:ref:`OPAL_BUSY`
Call opal_poll_events() and then retry opal_sync_host_reboot