Date: Mon, 21 Dec 2015 20:48:40 -0700
From: Trent Thompson <trentnthompson@gmail.com>
To: Sergey Manucharian <sm@ara-ler.com>
Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org>
Subject: Re: {Spam?} Re: bhyve PCI pass-through to Linux guest
Message-ID: <CAE7bWBpZO8rNz9O=VW_ZYNpNPNH%2Bzqjjs8vJiTbVSAQDsxVVsA@mail.gmail.com>
In-Reply-To: <5678BECC.7090200@freebsd.org>
References: <20151220045821.GG22018@dendrobates.araler.com> <56763672.3090207@freebsd.org> <20151220051015.GH22018@dendrobates.araler.com> <56763A0B.8010802@freebsd.org> <20151220053644.GI22018@dendrobates.araler.com> <20151220215240.GB4064@dendrobates.araler.com> <5678BECC.7090200@freebsd.org>
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Sergey, I've seen some success passing through devices that have their driver disabled in the FreeBSD kernel. See the USB 3.0 pass through that Eresia set up in iohyve. https://github.com/pr1ntf/iohyve/wiki/USB-3.0-PCI-Controller-Pass-through When he disabled the kernel module in FreeBSD, he can then use the device in the bhyve guest. Unfortunately, I have not worked on this specific problem myself, and cannot speak for this solution. -Trent On Mon, Dec 21, 2015 at 8:09 PM, Peter Grehan <grehan@freebsd.org> wrote: > Hi Sergey, > > This is pretty reproducible: >> >> I pass trough a PCI device (USB controller) to a Linux guest. It works >> properly. Then I halt the VM, make sure that bhyve destroyed it and run >> Windows guest with the same PCI device passed-through. >> >> Windows device manager does show the device, however, e.g. a flash drive >> plugged in is not presented to Windows, instead it's being processed by >> FreeBSD. >> >> After that it does not work in Linux guest as well. Kernel module (vmm) >> unloading and reloading does not help. >> > > The flash drive being processed by FreeBSD would indicate that it has > ownership of the device. Would you be able to try a 'pciconf -vl' after the > Linux guest exists, and after the Windows guest exits ? > > later, > > Peter. > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to " > freebsd-virtualization-unsubscribe@freebsd.org" >
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