I want to add NMI (Non-Maskable Interrupt) to Qemu Risc-v Virt machine. What's the best way to do it? Is it the same as a regular interrupt? How does Qemu emulate interrupts? I want to understand how Qemu emulates the HW behavior related to Interrupt implementation. Is there any good tutorial that explains this issue?
Understand Qemu Riscv NMI and Interrupts implementation
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