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Date:      Fri, 12 Aug 2016 03:01:25 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-virtualization@FreeBSD.org
Subject:   [Bug 205445] [bhyve] PCI passthru pci_intr_map: bad interrupt line 20, OpenBSD guest couldn't map interrupt
Message-ID:  <bug-205445-27103-tpefWLUGkD@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-205445-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-205445-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D205445

--- Comment #5 from Peter Grehan <grehan@FreeBSD.org> ---
Apologies - I should have been a bit clearer.

>PCI passthru with bhyve is restricted to devices that support
>MSI or MSI-X, which is generally PCI-e devices.

 This also requires guest support of MSI/MSI-x, where there are no legacy
interrupts available.

 The OpenBSD em/iwm drivers may either not use MSI, or require legacy
interrupts to be valid before using MSI.

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