From: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Dario Faggioli <dfaggioli@suse.com>,
Linux Trace Devel <linux-trace-devel@vger.kernel.org>
Subject: Re: [PATCH v2] trace-cmd: Find PID of host-guest task from tracing vsock connection
Date: Fri, 7 May 2021 07:20:15 +0300 [thread overview]
Message-ID: <CAPpZLN48irG2cuPZi4+RAORbkxpnHudNf1wdXBdjYDmr4e8bhw@mail.gmail.com> (raw)
In-Reply-To: <20210506214012.741cbbd7@oasis.local.home>
On Fri, May 7, 2021 at 5:12 AM Steven Rostedt <rostedt@goodmis.org> wrote:
>
> On Fri, 07 May 2021 02:32:05 +0200
> Dario Faggioli <dfaggioli@suse.com> wrote:
>
> > What am I missing?
>
> When you have 10 guests running, and you are only tracing one. How do
> you know which guest that kvm exit was for?
>
As Dario said, we can get the guest from the /proc/{kvm_exit task
ID}/status - the Tgid written there is the guest, the host task which
runs that guest.
> -- Steve
--
Tzvetomir (Ceco) Stoyanov
VMware Open Source Technology Center
next prev parent reply other threads:[~2021-05-07 4:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 21:14 [PATCH v2] trace-cmd: Find PID of host-guest task from tracing vsock connection Steven Rostedt
2021-05-07 0:32 ` Dario Faggioli
2021-05-07 1:40 ` Steven Rostedt
2021-05-07 4:20 ` Tzvetomir Stoyanov [this message]
2021-05-07 11:58 ` Steven Rostedt
2021-05-07 12:48 ` Dario Faggioli
2021-05-07 13:13 ` Steven Rostedt
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