Hi Alex, thanks for the reply! I realized that primary VGA is usually controlled by BIOS, that mean can choose discrete GPU or BMC as primary VGA. Unfortunately this server doesn't include this option. So that I can't choose BMC as primary VGA, and seems like can't setup vesafb to use BMC manually.
I'll try video=vesafb:off to see what happen. BTW, IME K2000 and higher need to be a secondary card in guest, is now still a same or it already can be primary card so that no QXL or something? Thanks, 2017-06-13 9:22 GMT+08:00 Alex Williamson <alex.l.william...@gmail.com>: > On Mon, Jun 12, 2017 at 7:12 PM, Eddie Yen <missile0...@gmail.com> wrote: > >> Hi there, >> >> I'm trying to do passthrough on another machine, since I can do the same >> thing on the original, I think it would be easy, but I was wrong. >> >> Here's the info about this server. >> >> CPU: Intel Xeon E5 2620 v2 x 2 >> OS: Ubuntu 16.04 Server (Kernel ver: 4.4.0) >> QEMU verison: 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.14) >> Libvirt version: 1.3.1 >> >> Only the different things is this server included BMC VGA, and I install >> Xfce virtual GUI + VNC. >> >> Below is what I'm setting on Ubuntu: >> >> 1. Blacklist the nouveau or other drivers about Nvidia >> Included nouveau, vga16fb, rivafb, nvidiafb, rivatv. >> >> 2. Add VFIO drivers into init list when boot . >> # cat /etc/modules >> vfio >> vfio_pci >> vfio_iommu_type1 >> vfio_virqfd >> >> 3. Add K420 PID & VID and open IOMMU function into GRUB >> GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on vfio-pci.ids=10de:0ff3,10de:0e >> 1b" >> >> 4. Build VM and install Windows Server 2012 R2 >> >> 5. Shutdown VM, add kvm=off, delete everything about Hyper-V function, >> and passthrough K420 after installation. >> >> >> But when I mount K420 into VM, VFIO shows error on kernel log. >> vfio-pci 0000:06:00.0: BAR 3: can't reserve [mem 0xd0000000-0xd1ffffff >> 64bit pref] >> >> And I checked /proc/iomem, it shows >> >> 80000000-dfffffff : PCI Bus 0000:00 >> 80000000-8fffffff : PCI MMCONFIG 0000 [bus 00-ff] >> 80000000-8fffffff : reserved >> c0000000-d1ffffff : PCI Bus 0000:06 >> c0000000-cfffffff : 0000:06:00.0 >> d0000000-d1ffffff : 0000:06:00.0 >> d1000000-d112ffff : vesafb >> >> >> VM can boot, but show Code 43 after installed driver. >> >> I don't know why it occupied by vesafb, since this server already have >> BMC chip. >> >> >> Here's the VM profile: >> >> https://pastebin.com/PXuT4Vqg >> >> >> Any ideas? >> > > vesafb is claiming resources on the card, clearly you need to prevent that > or release it from that driver. This is why primary graphics assignment is > not recommended. You'll want to do something like video=vesafb:off to > block it and then see what tries to claim it next and block that. Also > note that while Quadro K2000 and better better cards are actually supported > by NVIDIA (on certain distros at least), Quadros below that are not and may > or may not work as well as equivalent GeForce cards. Good luck, > > Alex >
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