On Sun, Jan 27, 2013 at 9:05 PM, Wang, Song-Bo (Stoney) <song-bo.w...@hp.com> wrote: > Hi Yinghai, hpa and others, > > Would you please review the patch on detecting x2apic FADT settings? > > We meet a BIOS system which works on x2apic physical mode by setting the bit > ACPI_FADT_APIC_PHYSICAL in FADT table. > And for those systems with all cpuid < 255, the spec requires BIOS's default > mode in xapic. > The kernel detects the default mode and do some initializations and will call > enable_IR_x2apic and change the mode to x2apic successfully.
Hi, Peter and Ingo, I checked the patch, and looks right. I updated the changelog and simplify the code a little bit. Please check if you can put it into tip:x86/apic Thanks Yinghai
wang_hp_x2apic.patch
Description: Binary data