From b5450ca72ce8d15c7f4e02ba3487de59a6418400 Mon Sep 17 00:00:00 2001
From: Sebastien Boeuf <sebastien.boeuf@intel.com>
Date: Tue, 9 Feb 2021 09:17:29 +0100
Subject: [PATCH] vmm: device_manager: Store legacy interrupt manager

In anticipation for accessing the legacy interrupt manager from the
function creating a VFIO PCI device, we store it as part of the
DeviceManager, to make it available for all methods.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 vmm/src/device_manager.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index 76c10fa10..d35cb13ef 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -834,6 +834,9 @@ pub struct DeviceManager {
     // MSI Interrupt Manager
     msi_interrupt_manager: Arc<dyn InterruptManager<GroupConfig = MsiIrqGroupConfig>>,
 
+    // Legacy Interrupt Manager
+    legacy_interrupt_manager: Option<Arc<dyn InterruptManager<GroupConfig = LegacyIrqGroupConfig>>>,
+
     // Passthrough device handle
     passthrough_device: Option<Arc<dyn hypervisor::Device>>,
 
@@ -941,6 +944,7 @@ impl DeviceManager {
             device_id_cnt: Wrapping(0),
             pci_bus: None,
             msi_interrupt_manager,
+            legacy_interrupt_manager: None,
             passthrough_device: None,
             iommu_device: None,
             pci_devices_up: 0,
@@ -1044,6 +1048,8 @@ impl DeviceManager {
 
         self.console = self.add_console_device(&legacy_interrupt_manager, &mut virtio_devices)?;
 
+        self.legacy_interrupt_manager = Some(legacy_interrupt_manager);
+
         virtio_devices.append(&mut self.make_virtio_devices()?);
 
         self.add_pci_devices(virtio_devices.clone())?;