You didn't have to flash the rom onto the card, you could just supply it to the VM with the following XML, check my previous mail:
<rom bar='on' file='/opt/GTX760.rom'/> One thing i've forgotten to add, that the vendors tell people to flash their cards with this command: nvflash But you do not need to do that at all! I've ran EfiRom -d on the rom file and it said that the file is not a rom file. The thing that worked for me was striping the rom and skipping some of the first bytes with this command: dd if=NV287MH.2K0 of=strip.rom bs=1 skip=1536 Then supplied it into VM and it started working properly :) On 11/19/2016 07:02 PM, Thomas Mashos wrote: > I just wanted to reply here because I've been fighting the exact same > issue for a similiar period of time and have tried many different > things (see my thread titled 'Another Nvidia code 43 error) and this > thread ended up helping me resolve the issue. > > I didn't have UEFI on my card (says GPU-Z) and couldn't get the rom to > load via the XML file, so I ended up flashing the UEFI rom to my GTX > 760 and after rebooting the host and starting the VM, it now works. > Here's my current XML file, although I plan to try and back out some > of the changes I've made http://termbin.com/99g8 > > On Sat, Nov 19, 2016 at 3:20 AM Dawid Osuchowski > <tulph...@openmailbox.org <mailto:tulph...@openmailbox.org>> wrote: > > It seems like you might have the same problem i have had with > Error 43. For using passthrough with OVMF, your GPU needs to have > a UEFI compatible ROM, either on the card itself or supplied to > the VM using: > > <rom bar='on' file='/opt/GTX650.rom'/> > > It should be used like this > > <devices> > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0000' bus='0x06' slot='0x02' function='0x0'/> > </source> > <boot order='1'/> > <rom bar='on' file='/opt/GTX650.rom'/> > </hostdev> > </devices> > > You need to check whether your ROM supports UEFI or not. Look up > this blog post by Alex Williamson on how to do that > > http://vfio.blogspot.com/2014/08/does-my-graphics-card-rom-support-efi.html, > but instead of using his utility (which for me said that the rom > is UEFI compatible, while it was not) use: > > EfiRom -d > > It comes with 'edk2' package in Fedora. > > If you cannot extract the ROM file from your card (it was the same > for me) then go into google and search for something like "(vendor > e.g. MSI) GTX 650 TI BOOST uefi rom". If you cannot find anything > with that, then go to a forum of the vendor of your card and ask > them to supply it to you. > > On 11/19/2016 06:01 AM, Zachary Boley wrote: >> I've been at this for almost 2 weeks and im on the final steps, >> Error 43 and no matter what i do its always detected as a vm. I >> was referred to come here from the vfio subreddit. here are my >> specs/versions >> >> Compiled against library: libvirt 2.2.0 >> Using library: libvirt 2.2.0 >> Using API: QEMU 2.2.0 >> Running hypervisor: QEMU 2.7.0 >> Windows 10 64bit >> >> 2x Xeon 5540s @ 2.5 >> 48GB DDR3 ECC >> GTX 650 TI BOOST >> Fedora 24 Server 4.8.6 >> >> to prove IOMMU is enabled http://pastebin.com/K2i7A79j >> VFIO-PCI details http://pastebin.com/JAbDRpkj >> >> passthrough VM xml: https://u.teknik.io/NOX1x.xml >> libvirt conf: https://u.teknik.io/a0rWz.txt >> qemu.conf: https://u.teknik.io/5Gd3Q.txt >> >> thread with my attempts >> >> https://www.reddit.com/r/VFIO/comments/5deci8/error_43_and_other_problems/ >> >> I have even used the OVMF git pure efi image to see if there was >> a difference but it doesnt seem to be helping. I have tried both >> attempts on Q35 and 440fx and nothing to be gotten out of it. I'm >> very lost on this and i have no clue whats going on. Not sure if >> this is the place for such requests but im lost >> >> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com <mailto:vfio-users@redhat.com> >> https://www.redhat.com/mailman/listinfo/vfio-users > > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com <mailto:vfio-users@redhat.com> > https://www.redhat.com/mailman/listinfo/vfio-users >
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