You can try to follow the reproduce steps described in bug description to reproduce this bug with the given commit of kvm.git I think it's easy to reproduce. For Intel NIC drivers in windows, you can download the appropriate driver you need via searching "Network Adapter Drivers for Windows" keywords in the following link. http://downloadcenter.intel.com/SearchResult.aspx?lang=eng BTW, many Intel Ethernet Controllers use the same driver named "PROWinx64.exe"(64bit) or "PROWin32.exe"(32bit). My driver for the assigned 82572 NIC for windows guest is the latest driver downloaded from the above website. Its version is 16.7. I said it was a kernel bug because it doesn't work when using latest kvm with an older qemu-kvm (in July 2011) . The older qemu-kvm was proved to be a good version at that time with appropriate kvm. it's good with: kvm.git e62c2ef9 + qemu-kvm.git 525e3df7 it's bad with: kvm.git (latest) + qemu-kvm.git 525e3df7
The phenomenon with the latest kvm upstream has some difference now. Now VT-D/SR-IOV NIC in win2k8 guest works fine now, but VT-D/SR-IOV NIC in win7 or winXP guest doesn't work. However, when I reported that bug, VT-D/SR-IOV NIC didn't work in win2k8, win7 or winXP guest. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/877155 Title: VT-D NIC doesn't work in windows guest Status in QEMU: New Bug description: [This should be a kvm kernel bug. I met this issue with quemu and kvm for virtualization. For https://bugzilla.kernel.org is not available yet, I just file this bug here just for tracking. ] Environment: ------------ Host OS (ia32/ia32e/IA64):All Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:211978fb6c666f824ae8221baeaeeee7ee28efc1 qemu.git Commit:edbb7c0de56692868e6126c7ff7e8bf917f8d0e7 Host Kernel Version:3.1.0-rc9+ Hardware: Westmere-EP && SandyBridge platform Bug detailed description: -------------------------- Using qemu and kvm upstream, VT-D NIC and SR-IOV VF don't work in Windows guest. I tried Windows XP, Vista, Win7, Win2k8 as a guest. And I used 82572 NIC and 82576 Virtual Function to assign to windows guest, and got the same result. Reproduce steps: ---------------- 1.start a Windows guest with a NIC assigned: qemu-system-x86_64 -m 1024 -smp 2 -device pci-assign,host=08:00.0 -net none -hda Windows.img 2.check network in the Windows guest. (You'll find the assigned NIC doesn't work in guest.) Current result: ---------------- NIC doesn't work in Windows guest Expected result: ---------------- NIC will work. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/877155/+subscriptions
