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[Qemu-devel] [Bug 730441] [NEW] NIC doesn't work with "pci=nomsi" in gru


From: Yongjie Ren
Subject: [Qemu-devel] [Bug 730441] [NEW] NIC doesn't work with "pci=nomsi" in grub.conf
Date: Mon, 07 Mar 2011 05:47:17 -0000

Public bug reported:

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.

** Affects: qemu
     Importance: Undecided
         Status: New

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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.



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