Re: [Xen-devel] 2.6.30 dom0 Xen patches

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> Andrew Lyon <andrew.lyon@xxxxxxxxx> 01.07.09 19:15 >>>
>I have rebased the xen-patches from opensuse
>kernel-source-2.6.30-50.1.src.rpm so that they can be applied to
>vanilla 2.6.30, the usual patches tarball and gentoo ebuild are
>available at http://code.google.com/p/gentoo-xen-kernel/downloads/list 
>, if you are not using Gentoo simply apply the patches in numeric
>order.
>
>Some notes:
>
>both dom0 and domU require CONFIG_SPARSE_IRQ=y and CONFIG_HOTPLUG=y
>64 bit dom0/domU requires CONFIG_IA32_EMULATION=y

May I ask why you found the first and third ones to be necessary? Unless
it's because of the conditional in the loop right after the commen "Zap
stats across IRQ changes of use." in unbind_from_irq(), which I fixed a
few days ago, but didn't push out to our internal repo so far. (The fix
is to change the dependency from CONFIG_SPARSE_IRQ to
CONFIG_GENERIC_HARDIRQS in the 2.6.30 patch.)

The second one seems less meaningful, as I wouldn't think anyone would
build a general use (Xen) kernel with EMBEDDED=y, and HOTPLUG is not
user selectable without EMBEDDED.

May I also ask for you to let us know about fixes to the patches that you
find necessary which aren't just due to you applying them to plain 2.6.30?

Thanks, Jan


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