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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-08-20 18:57:53 -0700
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-08-24 11:13:28 -0700
commitaaca49642b92c8a57d3ca5029a5a94019c7af69f (patch)
treea86a88c11addd689a2903d21f1bb948f461c1a1d /virt
parent76be97c1fc945db08aae1f1b746012662d643e97 (diff)
xen: use percpu interrupts for IPIs and VIRQs
IPIs and VIRQs are inherently per-cpu event types, so treat them as such: - use a specific percpu irq_chip implementation, and - handle them with handle_percpu_irq This makes the path for delivering these interrupts more efficient (no masking/unmasking, no locks), and it avoid problems with attempts to migrate them. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org>
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