Hi,
I am unable to get PCI passthrough to work on my Opteron system. I
keep getting an 'adapter reset' within the VM that has the PCI ethernet
assigned to it. It is running 2 x 6 core Opterons on a SuperMicro H8DCL
motherboard that has 2 Intel 82574L network interfaces on it.
Host's lspci (relevant card):
02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
03:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
Both host and VM are running Debian 7 (Wheezy). I have the latest qemu-kvm
from debian backports (1.7.0).
I am running the virtual hosts via virt-manager and assigning the PCI express
ethernet card at 03:00.0. There is no configuration on the host for that
ethernet card, only the first one (02:00.0) is in use. I have enabled the
options kvm allow_unsafe_assigned_interrupts=1
When running the VM with the PCI express adapter assigned to it, and configured
for the network it is connected to, it does not work. I simply get the
'adapter reset' message again and again.
The host shows the device being claimed by pci-stub as it gets assigned to the
guest and getting the IRQs. On the guest there is a stack trace and also
adapter resets.
I am hoping to run a number of different virtual machines off of this host. Due
to network policies in place (no devices in promiscuous mode get routed) I
cannot simply place the host's interface to be shared with different IPs, so
must do one physical ethernet interface each.
Any help would be greatly appreciated.
Thanks,
Derek
--
Derek Piper - dcpiper@xxxxxxxxxxx - (812) 855 5560
System Administrator / Informatics Specialist
Molecular Structure Center (IUMSC), Chemistry
Indiana University, Bloomington, Indiana
http://www.iumsc.indiana.edu/
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