2018-03-27 12:55 GMT+08:00 Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>: > 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? Please refer to the original discussion(Force Emulation Prefix part). https://lkml.org/lkml/2018/3/22/220 >> Should this be controlled by a boolean parameter? > > .. per guest. That is instead of a global one, have a per guest one? As Paolo pointed out offline: > Testing without the hacks being done by emulator.flat (TLB mismatch between instructions and data). I think a global module is enough for testing. Regards, Wanpeng Li
