Editing Test Day:2009-05-07 Virtualization KVM PCI Device Assignment

See [[Test_Day:2009-05-07_Virtualization]].

This test area is concerned with testing the [[Features/KVM_PCI_Device_Assignment|KVM PCI Device Assignment]] feature added in [[Releases/11|Fedora 11]].

Known bugs include:

* [[rhbug:499259|499259]] - svirt denials breaks KVM PCI device assignment
* [[rhbug:499708|499708]] - SELinux blocks libvirtd sysfs writes for virNodeDeviceDettach()/Reattach()/Reset()
: Until this is fixed, all but the nodedev ops test case requires you to run SELinux in permissive mode
* [[rhbug:499352|499352]] - Re-enable CONFIG_DMAR_DEFAULT_ON
: You will need to boot the host with intel_iommu=on until this is fixed
* [[rhbug:499267|499267]] - Assigning a PCI device using virt-manager/virt-install fails
: Fixed in [http://koji.fedoraproject.org/koji/buildinfo?buildID=101049 python-virtinst-0.400.3-8.fc11]
* [[rhbug:499386|499386]] - libvirt's qemu driver interprets the <hostdev> "managed" attribute incorrectly
: Fixed in [http://koji.fedoraproject.org/koji/buildinfo?buildID=101058 libvirt-0.6.2-6.fc11]
* [[rhbug:499561|499561]] - libvirt does not automatically re-attach an assigned device in the host after guest shutdown
: Workaround is to run <code>virsh nodedev-reattach</code> after the guest has shut down
* [[rhbug:499637|499637]] - IOMMU: no free domain ids
: This may happen after a lot of testing; workaround is to reboot the host

== Prerequisites ==

In order to test KVM PCI device assignment, you need:

# a host machine which has Intel VT-d or AMD IOMMU support
# the host booted with <code>intel_iommu=on</code> in order to enable VT-d support
# The <code>virt_manage_sysfs</code> selinux boolean enabled - <code>setsebool virt_manage_sysfs on</code>
# At least [https://koji.fedoraproject.org/koji/buildinfo?buildID=101058 libvirt-0.6.2-6.fc11] and [https://koji.fedoraproject.org/koji/buildinfo?buildID=101049 python-virtinst-0.400.3-8.fc11] installed

Please [http://smolts.org/smolt-wiki/Main_Page#Usage upload your smolt profile] using <code>smoltSendProfile</code> and add its URL to the table below.

Also, it would be useful to post your PCI bus topology - e.g. post the output of <code>lspci -t -v</code> to [http://fpaste.org Fedora's pastebin].

== Tests ==

The first thing you need to do is choose which PCI device on your KVM host that you will use for testing. Probably the most obvious to test with is a NIC. You'll need the device's nodedev name, and you can find this with

<pre>
  $> virsh nodedev-list --tree
  computer
    |
    ...
    +-pci_8086_10bd
    |   |
    |   +-net_00_13_20_f5_f9_5a
    ...
  $> virsh nodedev-dumpxml pci_8086_10bd
  <device>
    <name>pci_8086_10bd</name>
    <parent>computer</parent>
    <capability type='pci'>
      <domain>0</domain>
      <bus>0</bus>
      <slot>25</slot>
      <function>0</function>
      <product id='0x10bd'>82566DM-2 Gigabit Network Connection</product>
      <vendor id='0x8086'>Intel Corporation</vendor>
    </capability>
  </device>
</pre>

Follow each of these test cases:

# [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_libvirt_nodedev_operations|libvirt nodedev operations]]
# [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_assign_using_libvirt|assigning a device using libvirt]]
# [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_assign_using_virt_manager|assigning a device using virt-manager]]
# [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_virt_install_host_device|virt-install --host-device]]

== Results ==

If you have problems with any of the tests, file a bug report in [https://bugzilla.redhat.com bugzilla].

Once you have completed the tests, add your results to the table below.

{|
! User
! Smolt
! lspci
! [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_libvirt_nodedev_operations|Nodedev Ops]]
! [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_assign_using_libvirt|libvirt]]
! [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_assign_using_virt_manager|virt-manager]]
! [[QA:Testcase_Virtualization_KVM_PCI_Device_Assignment_virt_install_host_device|virt-install]]

! Comments
|-
| [[User:Markmc|Mark McLoughlin]] 
| [http://www.smolts.org/client/show/pub_0f98ce1f-983e-4825-b8d7-7f366f49fca4 smolt]
| [http://fpaste.org/paste/11088 lspci]
| style="background-color: green;" |PASS
| style="background-color: green;" |PASS
| style="background-color: green;" |PASS
| style="background-color: green;" |PASS
| Perfect score! Apart from the known bugs listed above, of course :-)
|-
|-
| [[User:charlesrose|Charles Rose]]
| 
| 
| FAIL
| 
| 
| 
| virsh nodevdev-reset fails. [[rhbug:499678:499678]] we can add this to the list once Mark can confirm that this is a bug.
|-
|-
| [[User:smerkx|Stanley Merkx]]
| [http://www.smolts.org/client/show/pub_612115f0-8a1b-4e6c-a6d9-04d53a963620 smolt]
| [http://fpaste.org/paste/12819 lspci]
| style="background-color: green;" |PASS
| style="background-color: red;" |FAIL
|
|
| Assignment of the device fails. [[rhbug:499259|499259]]
|-
|}

 [[Category:Fedora 11 Test Days]]
@@ Line 18: / Line 18: @@
 * [[rhbug:499637|499637]] - IOMMU: no free domain ids
 : This may happen after a lot of testing; workaround is to reboot the host
-* [[rhbug:499678|499678]] - libvirt should be able to reset a PCI function even if it causes other unused devices/functions to be reset
-: multi-function PCI devices without Function Level Reset (FLR) can't currently be used; more code to handle this case is required in libvirt
 == Prerequisites ==
@@ Line 103: / Line 101: @@
 |
 |
-| reset of multi-function device fails. [[rhbug:499678|499678]]
+| virsh nodevdev-reset fails. [[rhbug:499678:499678]] we can add this to the list once Mark can confirm that this is a bug.
 |-
 |-