Tag
interrupts
- Jul 23, 2026 Virtualizing the Local APIC: Access Pages, Virtual Interrupt Delivery, and Posted Interrupts Why every interrupt acknowledgement used to cost an exit, how hardware removed the exit for the common case, and what a posted interrupt descriptor does between the device and the guest. virtualization
- Aug 21, 2025 What the Hardware Does Between an Interrupt and Its Handler The stacked frame, the link register value that redirects the return, and the chaining shortcuts that make back-to-back interrupts cheap. embedded systems
- May 4, 2025 Interrupt Moderation and Event Delivery at High Rates Why one interrupt per completed transfer collapses at high packet rates, how coalescing timers and counters bound the damage, and what a polled-mode driver gives up. computer architecture
- Sep 4, 2024 Nested Interrupt Entry, Tail-Chaining and Late Arrival in the NVIC How the interrupt controller decides which of several pending interrupts runs first, why back-to-back handlers skip the full restore, and what happens when a request arrives during entry. embedded systems