Public bug reported: [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. ** Affects: qemu Importance: Undecided Status: New -- 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