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Does SEI in VS mode use default priority?

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On page 74: > Major interrupts outside the priority-confi gurable subset can still be directed to VS level, but their priority will simply be the default order defi ned in...

About the "sticky" property of sip.

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On page 64: > If a standard local interrupt becomes pending (= 1) in sip, the bit in sip is writable and will remain set until cleared by software. But...

On page 86: > The interrupt-pending and interrupt-enable bits are stored interleaved by doublewords within an MRIF to facilitate the possibility of an IOMMU examining the relevant enable bit to...

What's the purpose of virtual interrupts?

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I'm confused about the purpose of virtual interrupts. What Can it do that mideleg can't?

And what's the value of stopi.IPRIO when software setting mip.SEIP and mideleg.SEI to generate SEI to S mode? Should it be the value of `stopei.Interrupt_priority`, or the value of M...