What ioctl(KVM_RUN) Does: The VM Exit Loop Explained
The previous article established that guest code runs natively until it touches a device, at which point control has to reach QEMU. ioctl(vcpu_fd, K…
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The "Lift-and-Shift to KVM" Fallacy
The VM conversion completed without errors. Every workload made it across. The migration dashboard showed green, the project lead closed the ticket,…