[Qemu-devel] [Bug 1333216] Re: Xen 4.4 with qemu 1.6.2 VGA passthru NVIDIA

[Thomas Huth]

Can you still reproduce this problem with the latest version of QEMU? If
so, have you already tried to report it to the folks from the Xen
project?

** Changed in: qemu
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1333216

Title:
  Xen 4.4 with qemu 1.6.2 VGA passthru NVIDIA

Status in QEMU:
  Incomplete

Bug description:
  Hi!

  Please, give me an advice.

  I try use VGA passthough NVidia k40 on SuperMicro Server, but server is 
having error.
  My Xen is using qemu (a9e8aeb3755bccb7b51174adcf4a3fc427e0d147)2.0.0

  My VirtualMachine is have config:
  device_model_version = "qemu-xen"
  device_model_override = 
"/opt/sources/qemu-a9e8aeb/x86_64-softmmu/qemu-system-x86_64"

  When I start VM:
  dmesg
  [    0.906181] pci 0000:00:05.0: BAR 1: can't assign mem pref (size 
0x100000000)
  [    0.906187] pci 0000:00:05.0: BAR 1: trying firmware assignment [mem 
0x100000000-0x1ffffffff 64bit pref]
  [    0.906193] pci 0000:00:05.0: BAR 1: assigned [mem 0x100000000-0x1ffffffff 
64bit pref]
  and lspci -s 00:05.0 -vvv
          Region 0: Memory at 85000000 (32-bit, non-prefetchable) [size=16M]
          Region 1: Memory at 100000000 (64-bit, prefetchable) [size=4G]
          Region 3: Memory at 82000000 (64-bit, prefetchable) [size=32M]

  Why?

  This is message in DOM0:
  lspci -s 03:00.0 -vvv
  ....
  Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
  Region 1: Memory at 5800000000 (64-bit, prefetchable) [size=16G]
  Region 3: Memory at 5c00000000 (64-bit, prefetchable) [size=32M]

  
  Why Qemu don`t mapping BAR1?
  Thanks!
  Regards!

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1333216/+subscriptions