Re: [Xen-devel] Interrupt injection with ISR set on Intel hardware

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 15.10.18 at 14:06, <andrew.cooper3@xxxxxxxxxx> wrote:
> From the debugging, we see that PPR/IRR/ISR appear to retain their state
> across the mwait, and there is nothing in the manual which I can see
> discussing the interaction of LAPIC state and C states.

Is it perhaps a bad idea to go idle with an un-acked interrupt?
Quite possibly that's not something an ordinary OS would do.

Jan



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