For your quick question is there answer. I ask litle bit same in this thread. https://www.redhat.com/archives/vfio-users/2016-February/msg00033.html
2016-02-21 17:45 GMT+01:00 Nick Sarnie <commendsar...@gmail.com>: > Hi Alex, > > Yeah it seems you're right, the qemu command has "-device > vfio-pci,host=01:00.0,id=hostdev2,bus=pci.0,addr=0x2", so it seems it is > using vfio-pci.Thanks for the information. > > One more quick question: I'm using SeaBIOS for my VM. My GPU doesn't > support UEFI Secure/Fast booting. Can I use a GPU like this with OVMF and > more importantly, is there any performance difference using OVMF over > SeaBios? Thanks alot, > sarnex > > On Sun, Feb 21, 2016 at 11:36 AM, Alex Williamson < > alex.william...@redhat.com> wrote: > >> On Sun, Feb 21, 2016 at 9:06 AM, Nick Sarnie <commendsar...@gmail.com> >> wrote: >> >>> Sorry, I'm not sure if I'm using legacy device assignment. My script is >>> stop xdm, echo "0000:01:00.0" > /sys/bus/pci/drivers/radeon/unbind echo >>> "0000:01:00.1" > /sys/bus/pci/drivers/radeon/unbind and then start xdm. I >>> use virt-manager with libvirt, and I added the gpu to the VM with PCI Host >>> Device under Add Hardware. Is this what you're talking about? >>> >> >> Somehow I doubt that both function 0 and 1 are bound to the radeon >> driver, but if you're not crafting your own QEMU command line or specifying >> a driver for the hostdev entries in your XML, then you're probably using >> vfio. You can verify by looking at the libvirt log for the VM >> (/var/log/libvirt/qemu/$domain.log) for either vfio-pci or pci-assign >> devices. >> > > > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users > >
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