Sebastien Boeuf b77fdeba2d msi/msi-x: Prevent from losing masked interrupts ... We want to prevent from losing interrupts while they are masked. The way they can be lost is due to the internals of how they are connected through KVM. An eventfd is registered to a specific GSI, and then a route is associated with this same GSI. The current code adds/removes a route whenever a mask/unmask action happens. Problem with this approach, KVM will consume the eventfd but it won't be able to find an associated route and eventually it won't be able to deliver the interrupt. That's why this patch introduces a different way of masking/unmasking the interrupts, simply by registering/unregistering the eventfd with the GSI. This way, when the vector is masked, the eventfd is going to be written but nothing will happen because KVM won't consume the event. Whenever the unmask happens, the eventfd will be registered with a specific GSI, and if there's some pending events, KVM will trigger them, based on the route associated with the GSI. Suggested-by: Liu Jiang <gerry@linux.alibaba.com> Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>		2020-02-25 08:31:14 +00:00
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src	msi/msi-x: Prevent from losing masked interrupts	2020-02-25 08:31:14 +00:00
Cargo.toml	build(deps): bump libc from 0.2.66 to 0.2.67	2020-02-21 08:03:30 +00:00