Re: [Xen-devel] [PATCH v9 07/10] xen: remove workaround to inject evtchn_irq on irq enable

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.07.14 at 19:33, <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> evtchn_upcall_pending is already set by common code at vcpu creation,
> therefore on ARM we also need to call vgic_vcpu_inject_irq for it.
> Currently we do that from vgic_enable_irqs as a workaround.
> 
> Do this properly by introducing an appropriate arch specific hook:
> arch_evtchn_inject. arch_evtchn_inject is called by map_vcpu_info to
> inject the evtchn irq into the guest. On ARM is implemented by calling
> vgic_vcpu_inject_irq, on x86 is unneeded.

From a mechanical pov this has my ack, but I still don't see why
ARM needs what x86 (even for HVM) appears to get along fine
without.

Jan


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