[Bug 274389] bhyve in 15-CURRENT unable to boot OpenBSD anymore

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 20 Oct 2023 20:27:40 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274389

John Baldwin <jhb@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jhb@FreeBSD.org

--- Comment #3 from John Baldwin <jhb@FreeBSD.org> ---
Would be good to get more details of the actual config space write the guest OS
is making.  I suspect the assertion failure is because we are getting a
conflict (looks like from comment #1 that OpenBSD is setting the base address
of an I/O BAR to 0, and probably some other BAR is already at I/O port 0, hence
the error return and assertion failure).  The bug though in that case is why is
OpenBSD writing a 0 base address.  Are we advertising an existing base address
of 0 for BARs in bhyve?  If so, that might be the regression.

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