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Date:      Wed, 04 Nov 2020 21:10:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 250802] bhyve exited with status 134 when GPU PCI passthrough
Message-ID:  <bug-250802-27103-5Xwsaoykpr@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-250802-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-250802-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250802

--- Comment #7 from Konstantin Belousov <kib@FreeBSD.org> ---
(In reply to Peter Grehan from comment #6)
I do not think we can get out with just increase of the space for BAR mappi=
ng
below
4G in general.  Modern GPUs tend to increase aperture size, and for somethi=
ng
with
10G of VRAM together with coherent CPU/GPU memory, we simply cannot put the
apperture below 4G.

In comment #3 there is pciconf output from the guest, bars seems to be below
4G.

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