diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-08 15:07:03 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-16 11:03:16 +0200 |
| commit | 0725cbb97793d4e65bf148e4872959cdbb8c6ddd (patch) | |
| tree | 884cf1e23cbff9021058e855acb98b90e3f31b86 /kernel/kexec.c | |
| parent | 88459d4c7eb68c4a15609e00e5d100e2a305f040 (diff) | |
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 <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kexec.c')
0 files changed, 0 insertions, 0 deletions