I would definitely agree that it is not OVMF or Arch: I've seen a few reports of really long boots with Windows 10 recently on physical hardware. I run Arch with Win 7 on OVMF and have not seen any change in boot time behavior. My hardware is a bit older with a 4930k and Quadro K2000. Can you try using Win 8 or 7 to see if you have the same problem?
> On Jul 24, 2017, at 9:18 AM, John Koelndorfer <jkoelndor...@gmail.com> wrote: > > Hey folks, > > I've got a working GPU passthrough configuration with an Nvidia GTX 970 and > i7 5820k on an up-to-date Arch Linux system. I'm not using any special > packages, just the standard Linux kernel and qemu. The script I use for > launching is out there on GitHub: > https://github.com/jkoelndorfer/local-tools/blob/master/workstation/vfio/qemu-win10. > If you browse the vfio directory you'll see some other relevant > configuration bits. > > I've got the setup in a good working state now, except for one thing that's > bothersome. It takes a _long_ time for the VM to boot. As far as I can tell, > the issue is linked to the OVMF firmware. > > When I start the VM, it takes maybe 10-15 seconds for the GPU output to > display anything on the monitor. In fact, if I want to get into the EFI setup > I need to start mashing escape before anything even comes up. When I do > finally get something, the VM is stuck on the TianoCore logo for another 30 > seconds to a minute (haven't timed it). > > Additionally, all of the CPUs that are assigned to the VM are pegged at near > 100% until Windows finally starts to boot. > > I've also noticed that boot times improve if I assign fewer cores or less > memory to the VM. > > Lastly I'd add that I recently reinstalled Arch on this machine and I had a > working VFIO setup previously that did not experience this problem, though I > was using libvirt and Windows 8 in that scenario. I'm now using plain qemu > and Windows 10. Prior to the rebuild I hadn't used my Windows 8 VM in month > or two, so I suppose it's possible that a recent update is the cause of this > problem. > > I tried ovmf-git from the AUR and that didn't seem to help. I checked dmesg > and journalctl and I didn't see anything telling in the logs that would > indicate a problem. > > Anybody else encountered this problem and, if so, have you discovered a > solution? > > Many thanks! > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users
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