Re: [Qemu-devel] target-i386: clear bsp bit when designating bsp

[Paolo Bonzini]

On 07/04/2015 12:44, Andreas Färber wrote:
>> > It can change at runtime, though, if you're using the KVM in-kernel LAPIC.
> Got a pointer? A quick git-grep doesn't show anything in hw/ or
> kvm-all.c or target-i386/ assigning cpu_index, so it'll always have the
> initial value.

Not cpu_index, s->apicbase's MSR_IA32_APICBASE_BSP bit can change with
KVM in-kernel LAPIC.  It cannot change with QEMU's userspace LAPIC.

Because it can change, you have to call apic_designate_bsp for all CPUs
and not only on CPU 0.

Paolo