Re: [PATCH 0/8] x86/fpu: Remove CR0.TS support

From: Paul Bolle
Date: Mon Oct 31 2016 - 18:42:41 EST


On Mon, 2016-10-31 at 15:18 -0700, Andy Lutomirski wrote:
> I havne't meaningfully tested lguest because I can't get it to work
> even without these patches.

Have you disabled CONFIG_OLPC in the .config for the guest kernel?
Otherwise you will run into
 ÂÂlguest: Reinjecting trap 13 for fault at 0x1000062: Invalid argument

A similar obscure gotcha (I think it is "unhandled trap 13") can be
avoided by launching the guest with the dis_ucode_ldr kernel option.

Hope this helps,


Paul Bolle