[Xen-devel] port 80 pass-through to HVM guests

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

In a recent commit (99f85a28a78e96d28907fe036e1671a218fee597), KVM
disabled the passthrough of this port due to known problems on certain HP
laptops (see http://lkml.indiana.edu/hypermail/linux/kernel/0712.3/0872.html
and http://lkml.indiana.edu/hypermail/linux/kernel/0801.0/2388.html). While
I'd say that doing this globally just because of laptops may not be the right
thing in Xen, it would seem that a DMI based approach like is being used in
recent kernels (to replace the use of port 0x80 with 0xED) might still be
desirable.

Opinions?

Thanks, Jan


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