On 03/12/2012 01:01 PM, Eric W. Biederman wrote: > > The basic problem is which source do we block this at? How many > sources are their? And architecturally last I looked x86 no longer > has a NMI disable EFI and similar systems want to get away without > a CMOS legacy clock because designers so often get them wrong. > On all processors which have an LAPIC you can block all NMI sources at the LAPIC. I think it's safe to assume that if you don't have an LAPIC -- an ancient system by now -- you have port 70h. -hpa
