On Tue, Mar 27, 2018 at 12:40:20AM -0400, Konrad Rzeszutek Wilk wrote: > On Mon, Mar 26, 2018 at 07:12:15PM -0700, Wanpeng Li wrote: > > From: Wanpeng Li <wanpengli@xxxxxxxxxxx> > > > > This patch introduces a Force Emulation Prefix (ud2a; .ascii "kvm") for > > "emulate the next instruction", the codes will be executed by emulator > > instead of processor, for testing purposes. > > Can you expand a bit ? Why do you want this in KVM in the first place? > Should this be controlled by a boolean parameter? .. per guest. That is instead of a global one, have a per guest one?