lkml.org 
[lkml]   [2022]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH v2 2/3] perf/x86/intel/pt: Introduce and export pt_get_curr_event()
On Thu, Sep 22, 2022 at 12:58:49PM +0000, Wang, Wei W wrote:

> Add a function to expose the current running PT event to users. One usage is in KVM,
> it needs to get and disable the running host PT event before VMEnter to the guest and
> resumes the event after VMexit to host.

You cannot just kill a host event like that. If there is a host event,
the guest looses out.

\
 
 \ /
  Last update: 2022-09-22 15:36    [W:0.091 / U:1.888 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site