H. Peter Anvin wrote:
- we can no longer redirect a stub away from common code by changing the branch in that slot. We have to instead modify the IDT. This means "dedicated" interrupts don't get the vector number at all, which is probably fine -- to be honest, I'm not sure if they do at the moment either.
They do, and the various patches to multiplex things like IPIs across multiple vectors rely on it.
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