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potentially trigger multiple pending interrupts for level-sensitive interrupts. However, the event timer interrupt does need EOI before being handled to avoid missing clock events. These conflicting requirements are handled by having the XIV handler inform the dispatch code whether or not it send EOI to the CPU. If not, the dispatch code will do it. This allows handlers to send EOI before doing potentially long-running activities, while still have a sensible default behaviour. |
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acpica | ||
compile | ||
conf | ||
disasm | ||
ia32 | ||
ia64 | ||
include | ||
isa | ||
pci |