On Wed, Dec 19, 2012 at 2:36 AM, Zhang, Lin-Bao (Linux Kernel R&D) <linbao.zh...@hp.com> wrote: > Hi Yinghai , > > Actually ,my question like this: > OS can really enable x2apic correctly without BIOS' help in this case : > BIOS has claimed definitely it doesn't enable x2apic ,but OS feel it can > enable x2apic(based on BSP supports x2apic) ).
how does BIOS cleaim? disable that in CPUID? > > If Linux don't need BIOS' help , how did linux kernel reach this action? need DMAR table to enable intr remapping. --- ioapic only have 8 bits for dst. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
