On Thu, Jan 04, 2018 at 03:22:09PM -0800, Tim Chen wrote: > No one should be calling this with IRQs enabled. This check is probably > just paranoid. I can get rid of it.
Yes, confirmed. > It probably doesn't matter as we will be switching the check > to the spec_ctrl_ibrs a couple of patches later. The other problem with static_cpu_has is later the code intends to support the cpuid rescan post late microcode update which will set bits in boot_cpu_data (and transfer them to each cpu_has). If we'd only support early microcode update static_cpu_has should have been ok too.
