Re: [tip:x86/apic] x86/acpi: Introduce persistent storage for cpuid <-> apicid mapping

From: Thomas Gleixner
Date: Fri Oct 07 2016 - 08:53:05 EST

On Fri, 7 Oct 2016, Dou Liyang wrote:
> Is it possible that the "-1/oxffffffff" could appear in the MADT which is one
> of the ACPI tables?

According to the SDM the x2apic id is a 32bit ID, so 0xffffffff is a
legitimate value.