tree c65e8bc1324e5ba62b268bcd1fbe1b4b90342ecd
parent eca217b36e5d7d4377493d5cedd89105e66a5a72
author Jeremy Fitzhardinge <jeremy@goop.org> 1233958183 -0800
committer Ingo Molnar <mingo@elte.hu> 1234178250 +0100

xen: use our own eventchannel->irq path

Rather than overloading vectors for event channels, take full
responsibility for mapping an event channel to irq directly.  With
this patch Xen has its own irq allocator.

When the kernel gets an event channel upcall, it maps the event
channel number to an irq and injects it into the normal interrupt
path.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>