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Differential D17192

Handle the vm* instructions from a guest
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Authored by andrew on Sep 17 2018, 1:04 PM.
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araujo
emaste
imp

Details

Reviewers
jhb
rgrimes
tychon
araujo
Group Reviewers
bhyve
Commits
rS338957: Handle a guest executing a vm instruction by trapping and raising an
Summary

Handle a guest executing a vm instruction by trapping and raising an
undefined instruction exception. Previously we would exit the guest,
however an unprivileged user could execute these.

Found with: syzkaller

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

andrew created this revision.Sep 17 2018, 1:04 PM
Herald added a reviewer: rgrimes. · View Herald TranscriptSep 17 2018, 1:04 PM
Harbormaster completed remote builds in B19619: Diff 48102.Sep 17 2018, 1:04 PM
tychon accepted this revision.Sep 17 2018, 1:35 PM
This revision is now accepted and ready to land.Sep 17 2018, 1:35 PM
araujo accepted this revision.Sep 17 2018, 4:00 PM
araujo added a subscriber: araujo.

Lgtm!

emaste added a subscriber: emaste.Sep 17 2018, 4:38 PM
andrew updated this revision to Diff 48396.Sep 24 2018, 1:38 PM

Add the missing SDT_PROBE_DEFINE3

This revision now requires review to proceed.Sep 24 2018, 1:38 PM
Harbormaster completed remote builds in B19776: Diff 48396.Sep 24 2018, 1:38 PM
araujo accepted this revision.Sep 26 2018, 12:03 AM

Lgtm

This revision is now accepted and ready to land.Sep 26 2018, 12:03 AM
Closed by commit rS338957: Handle a guest executing a vm instruction by trapping and raising an (authored by andrew). · Explain WhySep 27 2018, 11:17 AM
This revision was automatically updated to reflect the committed changes.
Herald added a subscriber: imp. · View Herald TranscriptSep 27 2018, 11:17 AM

Revision Contents
Changeset List

PathSize
head/
sys/
amd64/
include/
1 line
vmm/
intel/
16 lines
1 line

Diff 48503

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head/sys/amd64/include/vmm.h

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head/sys/amd64/vmm/intel/vmx.c

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head/sys/amd64/vmm/vmm.c

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