On 10.09.2025 16:49, Alejandro Vallejo wrote: > CPU hotplug relies on the guest having access to the legacy online CPU > bitmap that QEMU provides at PIO 0xAF00. But PVH guests have no DM, so > this causes the MADT to get corrupted due to spurious modifications of > the "online" flag in MADT entries and the table checksum during the > initial acpica passes.
I don't understand this MADT corruption aspect, which - aiui - is why there's a Fixes: tag here. The code change itself looks plausible. Jan
