On Mon, Feb 26, 2018 at 07:02:29PM +0800, Wanpeng Li wrote: > > So a guest will have *two* microcode revisions - both of which are most > > likely wrong?! > > Just one revision. So what does "the non-sensical value which is written by the guest will not reflect to guest-visible microcode revision" even mean then? cat /proc/cpuinfo in the guest shows what exactly? And what would RDMSR 0x8b show then? > https://lkml.org/lkml/2017/12/9/29 The original discussion explain in > more details. My argument stands: exposing microcode revisions to guests is the wrong approach. Instead, the kernel should not look at microcode revisions if it runs virtualized. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.
