2018-02-26 19:30 GMT+08:00 Borislav Petkov <bp@xxxxxxxxx>: > On Mon, Feb 26, 2018 at 07:25:28PM +0800, Wanpeng Li wrote: >> Both are the same values set by kvm userspace. > > This still doesn't answer my question what "the non-sensical value which > is written by the guest will not reflect to guest-visible microcode > revision" means? The guest write is ignored as the original kvm implementation before the patch. > >> This is correct. The link explains why the userspace sets microcode >> revision is still needed. > > Why is it still needed? Hmm, the apic_check_deadline_errata() example can be referred to. Regards, Wanpeng Li
