Bug 212935 - No "pciback.hide" kernel command line option
No "pciback.hide" kernel command line option
Product: Fedora
Classification: Fedora
Component: kernel-xen (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Xen Maintainance List
Brian Brock
Depends On:
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Reported: 2006-10-30 03:27 EST by Steven Haigh
Modified: 2007-11-30 17:11 EST (History)
2 users (show)

See Also:
Fixed In Version: kernel-xen-2.6.18-1.2798.fc6
Doc Type: Bug Fix
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Last Closed: 2006-10-30 06:51:17 EST
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Description Steven Haigh 2006-10-30 03:27:12 EST
Bugzilla #188771 is re-occuring in FC6.

This seems to be an issue again in FC6 (kernel 2.6.18-1.2798.fc6xen).

Related grub.conf entry:
title Fedora Core (2.6.18-1.2798.fc6xen)
        root (hd0,0)
        kernel /boot/xen.gz-2.6.18-1.2798.fc6
        module /boot/vmlinuz-2.6.18-1.2798.fc6xen ro root=LABEL=/
        module /boot/initrd-2.6.18-1.2798.fc6xen.img

I get the following in the dmesg:
Kernel command line: ro root=LABEL=/ pciback.hide=(01:05.0)
Unknown boot option `pciback.hide=(01:05.0)': ignoring
Comment 1 Gawain Lynch 2006-10-30 04:24:49 EST
Fedora's Xen kernel has pciback built as a module.

See http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_module

But also the CONFIG_XEN_PCIDEV_FRONTEND options is not turned on so to make this
work you have to recompile the SRPM and enable it manually.

Can we please have it added to future kernels?
Comment 2 Stephen Tweedie 2006-10-30 06:51:17 EST
CONFIG_XEN_PCIDEV_FRONTEND should be set in FC-6 configs --- 

$ $ grep PCI kernel-2.6.18-i686-xen.config |grep FRONT

Please reopen if you continue to have problems.

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