Comment 0 for bug 2012763

During testing of an AMD Genoa CPU, it was discovered that qemu-system-amd64 doesn't support enough cpus.

The specific error the tester received was:

qemu-system-x86_64: Invalid SMP CPUs 384. The max supported by machine 'pc-q35-7.1' is 288

Looking at the sournce that seems to be an easy fix at first glance:

https://github.com/qemu/qemu/blob/master/hw/i386/pc_q35.c
372 machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE);
373 m->max_cpus = 288;