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The mechanism can initially register the sigbus handler after the device event monitor is enabled. When a sigbus event is captured, it will check the failure address and accordingly handle the memory failure of the corresponding device by invoke the hot-unplug handler. It could prevent the application from crashing when a device is hot-unplugged. By this patch, users could call below new added APIs to enable/disable the device hotplug handle mechanism. Note that it just implement the hot-unplug handler in these functions, the other handler of hotplug, such as handler for hotplug binding, could be add in the future if need: - rte_dev_hotplug_handle_enable - rte_dev_hotplug_handle_disable Signed-off-by: Jeff Guo <jia.guo@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com> |
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