From: Jeremy Fitzhardinge Date: Tue, 8 Jul 2008 22:07:03 +0000 (-0700) Subject: xen64: add identity irq->vector map X-Git-Tag: v2.6.27-rc1~955^2~1^20~27 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0725cbb97793d4e65bf148e4872959cdbb8c6ddd;p=pandora-kernel.git xen64: add identity irq->vector map The x86_64 interrupt subsystem is oriented towards vectors, as opposed to a flat irq space as it is in x86-32. This patch adds a simple identity irq->vector mapping so that we can continue to feed irqs into do_IRQ() and get a good result. Ideally x86_32 will unify with the 64-bit code and use vectors too. At that point we can move to mapping event channels to vectors, which will allow us to economise on irqs (so per-cpu event channels can share irqs, rather than having to allocte one per cpu, for example). Signed-off-by: Jeremy Fitzhardinge Cc: Stephen Tweedie Cc: Eduardo Habkost Cc: Mark McLoughlin Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed