https://bugzilla.kernel.org/show_bug.cgi?id=43328 Summary: VT-d/SR-IOV doesn't work in guest Product: Virtualization Version: unspecified Kernel Version: 3.4.0 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx ReportedBy: yongjie.ren@xxxxxxxxx CC: avi@xxxxxxxxxx Regression: No Environment: ------------ Host OS (ia32/ia32e/IA64):ia32e Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:b48b2c3e50433ff6f7e46186daa7f986bd960215 qemu-kvm Commit:18a188f66237e7b38fc8133d3862e5904c0e7ffb Host Kernel Version:3.4.0 Hardware:WSM-EP, Romley-EP Bug detailed description: -------------------------- Assign a VF or normal NIC to the guest, the guest cannot get IP address. Note:1. assign the VF of Intel 82576 NIC or 82599 NIC, the guest cannot get IP 2. hot plug a VF to the guest, the guest cannot get IP 3. assign a PF to the guest, the guest cannot get IP. kvm(next) + qemu-kvm = result b48b2c3e + 18a188f6 = bad 322728e5 + 18a188f6 = good Reproduce steps: ---------------- 1. ./pcistub.sh -h 08:10.0 ( to hide a device) 2. qemu-system-x86_64 -m 512 -device pci-assign,host=08:10.0 -net none -hda rhel6u1.qcow Current result: ---------------- The guest cannot get IP Expected result: ---------------- The guest can get IP Basic root-causing log: ---------------------- [root@vt-snb9 ~]# qemu-system-x86_64 -m 512 -device pci-assign,host=08:10.0 -net none -hda rhel6u1.qcow VNC server running on `::1:5900' assigned_dev_enable_msix: assign irq: Invalid argument fail to set MSI-X entry number for MSIX! Invalid argument assigned_dev_update_msix_mmio: Invalid argument fail to set MSI-X entry number for MSIX! Invalid argument assigned_dev_update_msix_mmio: Invalid argument -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
