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Date:      Fri, 04 Jan 2019 18:41:27 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 203874] [patch] MSI/MSI-X interrupts don't work in VMware virtual machines
Message-ID:  <bug-203874-27103-PVrS5mCu6f@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-203874-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-203874-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D203874

--- Comment #15 from John Baldwin <jhb@FreeBSD.org> ---
(In reply to igor from comment #14)
Comment #12 explains why another hypervisor had issues with FreeBSD due to =
an
incomplete emulation of MSI-X.  However, the questions it raises can only be
answered by someone who knows how VMWare's hypervisor implements passthrough
and how it has changed over time.  For example, on Xen we employ a workarou=
nd
for the known-broken versions (and Xen has been fixed).  It may be that if
VMWare had a similar issue it was previously fixed as well which would expl=
ain
why the quirk may not be needed on newer versions of VMWare, but someone fr=
om
VMWare would have to answer that question.

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