From 120d95e03123ede9cc3aa05a8ce976fd4678a890 Mon Sep 17 00:00:00 2001
From: Daniel Verkamp <dverkamp@chromium.org>
Date: Wed, 24 Oct 2018 17:06:07 -0700
Subject: devices: pci: support level-triggered interrupts

Register the irqfd with resample support so that we can correctly
emulate level-triggered interrupts.  This requires each PciDevice to
listen for interrupt_resample events and re-assert the IRQ eventfd if it
should still be active.

BUG=None
TEST=Boot crosvm on x86-64 and arm devices

Change-Id: I5cf8d1d1705cf675b453962c00d2d606801fee91
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1298654
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
---
 devices/src/virtio/virtio_pci_common_config.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'devices/src/virtio/virtio_pci_common_config.rs')

diff --git a/devices/src/virtio/virtio_pci_common_config.rs b/devices/src/virtio/virtio_pci_common_config.rs
index 2793052..8596563 100644
--- a/devices/src/virtio/virtio_pci_common_config.rs
+++ b/devices/src/virtio/virtio_pci_common_config.rs
@@ -236,6 +236,7 @@ mod tests {
             &mut self,
             _mem: GuestMemory,
             _interrupt_evt: EventFd,
+            _interrupt_resample_evt: EventFd,
             _status: Arc<AtomicUsize>,
             _queues: Vec<Queue>,
             _queue_evts: Vec<EventFd>,
-- 
cgit 1.4.1