kvm commit: b35049715d619c9badaea07dec766787b433facf qemu-kvm commit: 27f368604a3d27ca4ddac0f62a6928bb93cdacd5
And the dmesg info of the guest is attached. You may search "Failed to initialize MSI interrupts" in this dmesg. ** Attachment added: "dmesg_nomsi" https://bugs.launchpad.net/qemu/+bug/730441/+attachment/1891136/+files/dmesg_nomsi.txt -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/730441 Title: NIC doesn't work with "pci=nomsi" in grub.conf Status in QEMU: New Bug description: qemu-kvm Commit:27f368604a3d27ca4ddac0f62a6928bb93cdacd5 NIC doesn't work with "pci=nomsi" in grub.conf. Neither static assignment nor hot-plug assignment works. And when using qemu-kvm's commit 08bb9f6b1a5d8f4f5dd5bafad2876067797cb8b4， qemu doesn't have this problem. Reproduce steps: 1.build and install qemu-kvm 2.plug off a NIC device from host (BDF of NIC: 13:00.0) 3.start a guest (grub.conf has a configuration "pci=nomsi") : qemu-system-x86_64 -m 512 -smp 2 -device pci_assign,host=13:00.0 -hda /share/ia32e-rhel5u5.img 4.[Guest] dhclient The NIC assigned before cannot get an IP address. It doesn't work.
