EFI_STATUS MyDriverInitialize(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
In the world of low-level embedded programming, few concepts are as critical—yet as poorly documented for beginners—as the Interrupt Vector Table (IVT) and its associated handler functions. Among the various naming conventions used across microcontroller architectures (such as ISR , _irq , or vector ), one specific term appears in proprietary Real-Time Operating Systems (RTOS) and legacy firmware codebases: . ivthandleinterrupt
In a multiprocessor system, multiple CPUs need to communicate with each other and share resources. The APIC is responsible for managing interrupts between CPUs, and ivthandlerinterrupt is the interrupt handler that services these interrupts. EFI_STATUS MyDriverInitialize(IN EFI_HANDLE ImageHandle
Mastering ivthandleinterrupt is mastering real‑time responsiveness. or vector )
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