Fix qemu_wait_io_event processing in io-thread mode
When checking for I/O events in the tcg CPU loop, make sure that we call qemu_wait_io_event_common for all CPUs, not only the current one. Otherwise pause_all_vcpus may lock up or run_on_cpu requests may starve. Rename qemu_wait_io_event to qemu_tcg_wait_io_event at this chance and purge its argument list as it has no use for it. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Acked-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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