On 01/20/2010 12:02 PM, Gleb Natapov wrote:
I can inject the event as HW interrupt on vector greater then 32 but not go through APIC so EOI will not be required. This sounds non-architectural and I am not sure kernel has entry point code for this kind of event, it has one for exception and one for interrupts that goes through __do_IRQ() which assumes that interrupts should be ACKed.
Further, we start to interact with the TPR; Linux doesn't use the TPR or cr8 but if it does one day we don't want it interfering with apf.
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