Add SDT probes to the VMX VMexit interface
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Authored by domagoj.stolfa_gmail.com on Mar 11 2018, 6:21 PM.

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Reviewers

grehan
rgrimes
tychon

Group Reviewers

bhyve
DTrace

Commits

rS332479: Add SDT probes to vmexit on Intel.

Summary

This patch is the first in the series of patches that add a new provider in DTrace called vmm. It is meant to hold all of the bhyve-related kernel probes. In this particular patch, only VMX probes for the VMexit interface were added.

The purpose of these probes is to aid in debugging VMexit-related problems directly in the VMX interface without having to enable KTR (and in turn wait a very long time to get a trace).

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rS FreeBSD src repository - subversion

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Event Timeline

domagoj.stolfa_gmail.com created this revision.Mar 11 2018, 6:21 PM

Herald added a reviewer: rgrimes. · View Herald TranscriptMar 11 2018, 6:21 PM

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kaktus added a subscriber: kaktus.Mar 11 2018, 7:06 PM

Adding Tycho to this.

Should I make any more changes for this to land? As an aside note: I've tried to make the interface as simple as possible to use with the args[0-2] being consistent.

Seems ok to me.

Is this good to land? Thanks!

I think this should be fine. Can always be tweaked later.

This revision is now accepted and ready to land.Apr 12 2018, 4:37 PM

tychon accepted this revision.Apr 13 2018, 5:20 PM

Closed by commit rS332479: Add SDT probes to vmexit on Intel. (authored by tychon). · Explain WhyApr 13 2018, 5:23 PM

This revision was automatically updated to reflect the committed changes.