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genirq: Let irq_set_vcpu_affinity() iterate over hierarchy
authorMarc Zyngier <marc.zyngier@arm.com>
Fri, 23 Jun 2017 20:42:57 +0000 (21:42 +0100)
committerMarc Zyngier <marc.zyngier@arm.com>
Wed, 23 Aug 2017 10:09:14 +0000 (11:09 +0100)
commit0abce64a55ae44d39b92f8e672736f4f324e610f
tree8a95c64171ac618a93e2b93421d4ef86f370e5cctree | snapshot (tar.gz zip)
parente81f54c668d89e50bad38f3fc4c5ea6e4be3a96ecommit | diff
genirq: Let irq_set_vcpu_affinity() iterate over hierarchy

When assigning an interrupt to a vcpu, it is not unlikely that
the level of the hierarchy implementing irq_set_vcpu_affinity
is not the top level (think a generic MSI domain on top of a
virtualization aware interrupt controller).

In such a case, let's iterate over the hierarchy until we find
an irqchip implementing it.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
kernel/irq/manage.c diff | blob | blame | history