[Xen-devel] x86 HPET MSI IRQs vs resume from S3

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

Going through hpet_broadcast_init(), I see that hpet_setup_msi_irq()
gets called during resume, thus causing setup_irq() to be called. I'm
failing to spot the corresponding release_irq(), and hence I can't see
how this whole code path is supposed to work during resume (other
than always falling back to using legacy_hpet_event). Instead I'm
wondering whether in the resume case only msi_compose_msg()/
hpet_msi_write() should be called for each IRQ used rather than the
whole hpet_broadcast_init().

Thanks for any hints or pointers,
Jan


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