lkml.org 
[lkml]   [2018]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 2/2] KVM: VMX: Add Force Emulation Prefix for "emulate the next instruction"
2018-03-27 12:55 GMT+08:00 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>:
> 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@tencent.com>
>> >
>> > 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

\
 
 \ /
  Last update: 2018-03-27 07:03    [W:0.282 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site