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Hotplug events were previously delivered using an EPOW interrupt and were queued by linux guests into a circular buffer. For traditional EPOW events like shutdown/resets, this isn't an issue, but for hotplug events there are cases where this buffer can be exhausted, resulting in the loss of hotplug events, resets, etc. Newer-style hotplug event are delivered using a dedicated event source. We enable this in supported guests by adding standard an additional event source in the guest device-tree via /event-sources, and, if the guest advertises support for the newer-style hotplug events, using the corresponding interrupt to signal the available of hotplug/unplug events. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> |
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| block | ||
| crypto | ||
| disas | ||
| exec | ||
| fpu | ||
| hw | ||
| io | ||
| libdecnumber | ||
| migration | ||
| monitor | ||
| net | ||
| qapi | ||
| qemu | ||
| qom | ||
| standard-headers | ||
| sysemu | ||
| ui | ||
| elf.h | ||
| glib-compat.h | ||
| qemu-common.h | ||
| qemu-io.h | ||
| trace-tcg.h | ||
| trace.h | ||