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Date:      Sun, 30 May 2021 12:38:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 251046] bhyve PCI passthrough does not work inside jail
Message-ID:  <bug-251046-27103-5SHVE63AgS@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-251046-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-251046-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251046

Anatoli <me@anatoli.ws> changed:

           What    |Removed                     |Added
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                 CC|                            |me@anatoli.ws

--- Comment #7 from Anatoli <me@anatoli.ws> ---
Hi All,

> Even then I'm not sure why it's useful to jail the bhyve process - what d=
oes it buy you?

The idea to run bhyve inside jail is to provide an additional layer of secu=
rity
for potential vm-escape vulnerabilities in bhyve.

This is the way VMs are executed on Linux (protected by AppArmor and SEL) a=
nd
Illumos.

Currently it's possible to run bhyve in jail, but not with PCI passthrough.

> A better solution would be to extend pci(4) so that bhyve can use it to d=
o everything required for PCI passthrough.

Mark, could you please give us a hint on what should be done to extend pci(=
4)
so jail changes are not needed? We are willing to implement this, but need =
some
guidance.

One more security improvement that bhyve needs is to run it without root, b=
ut
that's another story for another report.

--=20
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