Date: Sun, 20 May 2018 16:04:19 -0300 From: Mario Lobo <lobo@bsd.com.br> To: Felix Palmen <felix@palmen-it.de> Cc: freebsd-virtualization@freebsd.org Subject: Re: bhyve: passthrough of PCIe device without MSI possible? Message-ID: <CA%2ByoEx_8WM1Q6rnSdk-Kf7V13OLbXseU0u6Be8xntZ8ncpzjyg@mail.gmail.com> In-Reply-To: <7167ea46-ee07-8ffa-615e-0f3d3eb92e64@palmen-it.de> References: <7167ea46-ee07-8ffa-615e-0f3d3eb92e64@palmen-it.de>
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Hi Felix; I had the same impression and I was attempting to do the same with no success. Have you managed to make it work? 2018-05-11 12:26 GMT-03:00 Felix Palmen <felix@palmen-it.de>: > I have the following PCIe card on a host running 11.1-RELEASE: > > | ppt0@pci0:5:0:0: class=0x078000 card=0x00011b74 chip=0x08101b74 > rev=0x14 hdr=0x00 > | vendor = 'OpenVox Communication Co. Ltd.' > | class = simple comms > > it doesn't support MSI according to `pciconf -lbc`: > > | ppt0@pci0:5:0:0: class=0x078000 card=0x00011b74 chip=0x08101b74 > rev=0x14 hdr=0x00 > | bar [10] = type Memory, range 32, base 0xdfe00000, size 524288, > enabled > > Trying to pass this card to a guest using `vm-bhyve` gives me the > following in `bhyve.log`: > > | bhyve: failed to initialize MSI for PCI 5/0/0 > > and this in `vm-byve.log`: > > | [bhyve options: -c 2 -m 2G -Hwl bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd > -U 9f2546f5-5464-11e8-8b52-d05099c0f275 -S] > | [bhyve devices: -s 0,hostbridge -s 31,lpc -s > 4:0,virtio-blk,/dev/zvol/zroot/vm/pbx/disk0 -s > 5:0,virtio-net,tap2,mac=58:9c:fc:00:d7:6b -s 6:0,passthru,5/0/0 -s > 7:0,fbuf,tcp=0.0.0.0:5900] > | [bhyve console: -l com1,/dev/nmdm0A] > | [bhyve iso device: -s 3:0,ahci-cd,/var/vm/.config/null.iso] > | starting bhyve (run 1) > | bhyve exited with status 1 > > Now .. is it actually possible to pass such a device to a bhyve guest? > From the code comment here: > <https://github.com/freebsd/freebsd/blob/master/usr.sbin/bhy > ve/pci_passthru.c#L257> > I assumed MSI would be "emulated" if necessary? > > TIA, Felix > > -- > Dipl.-Inform. Felix Palmen <felix@palmen-it.de> ,.//.......... > {web} http://palmen-it.de {jabber} [see email] ,//palmen-it.de > {pgp public key} http://palmen-it.de/pub.txt // """"""""""" > {pgp fingerprint} ED9B 62D0 BE39 32F9 2488 5D0C 8177 9D80 5ECF F683 > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubs > cribe@freebsd.org" > -- Mario Lobo http://www.mallavoodoo.com.br FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!]
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