Re: [Xen-devel] [PATCH for-4.12] pvh/dom0: fix deadlock in GSI mapping

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 28.01.19 at 15:22, <roger.pau@xxxxxxxxxx> wrote:
> In order to solve it move the vioapic_hwdom_map_gsi outside of the
> locked region in vioapic_write_redirent. vioapic_hwdom_map_gsi will
> not access any of the vioapic fields, so there's no need to call the
> function holding the hvm.irq_lock.

True, but you also move the code across a vioapic_deliver()
invocation. Is that delivery going to work when
vioapic_hwdom_map_gsi() gets invoked only afterwards?

Jan



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