Yes, this bug is got fixed.
** Changed in: qemu
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/799036
Title:
NIC assignment order in command line make some NIC can't work
Status in QEMU:
Fix Released
Bug description:
Environment:
------------
Host OS (ia32/ia32e/IA64):All
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
kvm.git Commit:681fb677ace0754589792c92b8dbee9884d07158
qemu-kvm Commit:05f1737582ab6c075476bde931c5eafbc62a9349
Host Kernel Version:3.0.0-rc2+
Hardware: Westmere-EP platform
Bug detailed description:
--------------------------
When using qemu-system-x86_64 to create a linux guest with a 82586 NIC and a
82572EI NIC statically assigned, the two NIC's order in command line may make
82586 NIC can't work in guest.
command1: qemu-system-x86_64 -m 1024 -smp 2 -device pci-assign,host=0e:00.1
-device pci-assign,host=0c:00.0 -net none -hda qcow-rhel6.img
command2: qemu-system-x86_64 -m 1024 -smp 2 -device pci-assign,host=0c:00.0
-device pci-assign,host=0e:00.1 -net none -hda qcow-rhel6.img
Using command1 to create a guest, both two NICs works well in guest.
While using command2 to create a guest, 82576(kawela) NIC 0c:00.0 cannot get
IP in guest.
BDF 0c:00.0 is a 82576(kawela) NIC, while BDF 0e:00.1 is 82572EI NIC.
The only difference of the two command lines is the order of NICs assignment.
And only the 82576(kawela) NIC have this problem, the other one 82572EI
always works well.
And sriov VF doesn't have this issue. A VF and a 82576 PF assigned to a
guest always work well.
I don't know the order of NIC assignment in qemu-system-x86_64 will make this
difference in guest. Maybe it's a qemu bug ?
Reproduce steps:
----------------
1.pci-stub the two NIC
2.create a guest: qemu-system-x86_64 -m 1024 -smp 2 -device
pci-assign,host=0c:00.0 -device pci-assign,host=0e:00.1 -net none -hda
qcow-rhel6.img
(0c:00.0 is a 82576 NIC, and 0e:00.1 is another NIC).
Current result:
----------------
82576 PF and the other NIC in guest will work well regardless of what the
order of assignment is.
Expected result:
----------------
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