[RFC PATCH] xen,apic: Setup our own APIC driver and validator for APIC IDs.

Via CPUID masking and the different apic-> overrides we effectively make PV guests only but with the default APIC driver. That is OK as an PV guest should never access any APIC registers. However, the APIC is also used to limit the amount of CPUs if the APIC IDs are incorrect - and since we mask

[RFC PATCH] xen,apic: Setup our own APIC driver and validator for APIC IDs.

Via CPUID masking and the different apic- overrides we effectively make PV guests only but with the default APIC driver. That is OK as an PV guest should never access any APIC registers. However, the APIC is also used to limit the amount of CPUs if the APIC IDs are incorrect - and since we mask