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authorChristoffer Dall <christoffer.dall@linaro.org>2015-11-25 21:02:16 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-20 16:39:46 +0300
commit81eeb95ddbabbb998a6b39f762bc7edaa2a979b4 (patch)
tree2a22d9c5277b74c69a158364cddaeae1f0e63cfe /mm/madvise.c
parent64a959d66e47039833e7f3c8d7e50fd4afa078ca (diff)
downloadlinux-81eeb95ddbabbb998a6b39f762bc7edaa2a979b4.tar.xz
KVM: arm/arm64: vgic-new: Implement virtual IRQ injection
Provide a vgic_queue_irq_unlock() function which decides whether a given IRQ needs to be queued to a VCPU's ap_list. This should be called whenever an IRQ becomes pending or enabled, either as a result of userspace injection, from in-kernel emulated devices like the architected timer or from MMIO accesses to the distributor emulation. Also provides the necessary functions to allow userland to inject an IRQ to a guest. Since this is the first code that starts using our locking mechanism, we add some (hopefully) clear documentation of our locking strategy and requirements along with this patch. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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