According to IA32/Intel Software Development Manual, when some PMU (Performance Monitor Unit) counter overflows occur, or LBR (Last Branch Record)/BTS (Branch Trace Store) is near full, the processor will deliver a PMI (Performance Monitor Interrupt). In Linux Kernel implementation, the PMU (perf tool) is using NMI to deliver such a PMI interrupt, and we can directly change the kernel source to add our own PMI handler for a particular event.
But in Windows OS, how to register a PMI handler callback in a driver without hooking the kernel IDT table? Does anybody know about it?
Showing posts with label PMI. Show all posts
Showing posts with label PMI. Show all posts
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