Red Hat Bugzilla – Full Text Bug Listing
|Product:||[Fedora] Fedora||Reporter:||Alex Williamson <alex.williamson>|
|Component:||kernel||Assignee:||Kernel Maintainer List <kernel-maint>|
|Status:||CLOSED ERRATA||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Version:||17||CC:||gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, night221|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2012-11-01 14:43:29 EDT||Type:||Bug|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Alex Williamson 2012-10-16 18:15:50 EDT
Description of problem: The VFIO userspace device driver interface was added in Linux 3.6 but is not enabled in Fedora. This is true of fc17 and I assume fc18. Version-Release number of selected component (if applicable): kernel-3.6.1-1.fc17.x86_64 How reproducible: 100% Steps to Reproduce: 1. Install 2. grep VFIO /boot/config-`uname -r` 3. Actual results: # CONFIG_VFIO is not set Expected results: CONFIG_VFIO_IOMMU_TYPE1=m CONFIG_VFIO=m CONFIG_VFIO_PCI=m Additional info:
Comment 1 Josh Boyer 2012-10-17 11:08:25 EDT
Why should we enable this? Are there any userspace dependencies? Will it impact how peoples machines (or guests) currently boot?
Comment 2 Alex Williamson 2012-10-17 12:03:22 EDT
(In reply to comment #1) > Why should we enable this? VFIO is the new mechanism for doing PCI device assignment in Qemu and should eventually supersede and deprecate KVM based device assignment. > Are there any userspace dependencies? No, current qemu development branch will use it if available, but depends on it only for vfio-based PCI device assignment. > Will it impact how peoples machines (or guests) currently boot? No, there are no devices automatically probed by the driver, it uses a pci-stub approach to only attach to devices explicitly indicated by the sysadmin. The driver is only useful in combination with IOMMU hardware, so it's not useful in guests.
Comment 3 Josh Boyer 2012-10-17 12:17:44 EDT
Excellent. Thanks for the info. I'm guessing you want this in F17, F18, and rawhide.
Comment 4 Alex Williamson 2012-10-17 12:32:29 EDT
(In reply to comment #3) > Excellent. Thanks for the info. > > I'm guessing you want this in F17, F18, and rawhide. Yes please
Comment 5 Fedora Update System 2012-10-23 17:57:44 EDT
kernel-3.6.3-3.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.6.3-3.fc18
Comment 6 Fedora Update System 2012-10-24 12:15:39 EDT
Package kernel-3.6.3-3.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.6.3-3.fc18' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-16787/kernel-3.6.3-3.fc18 then log in and leave karma (feedback).