Hi Alex, Here's VM profile. Basically this VM is created from virt-manager, and guest OS is Ubuntu so no need to add capabilities for Windows environment.
https://pastebin.com/VZM63ZsC And GPU for this VM is Tesla P100. But we also found the same issue on another GPU which is Tesla P4. Eddie Alex Williamson <alex.william...@redhat.com> 於 2019年5月21日 週二 上午3:50寫道： > On Mon, 20 May 2019 15:52:56 +0800 > Eddie Yen <missile0...@gmail.com> wrote: > > > Hi everyone, > > > > I'm not sure it's VFIO or pure KVM issue on here. > > > > Now we have one GPU server which contains few Tesla GPUs. Installed > Fedora > > 28 and using VFIO to passthrough GPU into VM. > > Everything is OK, except one annoying things that we using PXE to install > > guest OS. But PXE can't get any DHCP IP if GPU mounted. We have to > un-mount > > GPU first then re-mount once OS installation completed. > > > > For PXE, we use host bridge to connect host VLAN, then let PXE boot vnet > > going to connect that bridge. > > I'm not sure the root cause, probably from PCI setup inside VM. > > Does anyone have idea? > > Can you post the VM config? What model Tesla? Thanks, > > Alex >
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