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author | Ian Campbell <ian.campbell@citrix.com> | 2012-10-09 15:05:40 +0100 |
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committer | Ian Campbell <ian.campbell@citrix.com> | 2012-10-09 15:05:40 +0100 |
commit | de43d7a373eef95bedcd816f1fcf8c062e1ac328 (patch) | |
tree | 4b78f73c75a74ff0400d9920e66aae2d013db3a9 /docs | |
parent | 55ba3b2be653e85e73cbad96f5cd2e5307e83730 (diff) | |
download | xen-de43d7a373eef95bedcd816f1fcf8c062e1ac328.tar.gz xen-de43d7a373eef95bedcd816f1fcf8c062e1ac328.tar.bz2 xen-de43d7a373eef95bedcd816f1fcf8c062e1ac328.zip |
arm: Use per-CPU irq_desc for PPIs and SGIs
The first 32 interrupts on a GIC are the Peripheral Private Interrupts
and Software-Generated Interrupts and are local to each processor.
The irq_desc cannot be shared since we use irq_desc->status to track
whether the IRQ is in-progress etc. Therefore give each processor its
own local irq_desc for each of these interupts.
We must also route them on each CPU, so do so.
This feels like a bit of a layering violation (since the core ARM
irq.c now knows about thinkgs wich are really gic.c business)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'docs')
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