virtio-devices: wire driver_status to EpollHandler

Signed-off-by: Peter Oskolkov <posk@google.com>

fuzz/fuzz_targets/balloon.rs

@@ -103,6 +103,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
                 (1, deflate_q, deflate_evt),
                 (2, reporting_q, reporting_evt),
             ],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();
 

fuzz/fuzz_targets/block.rs

@@ -95,6 +95,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
             mem: guest_memory,
             interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
             queues: vec![(0, q, evt)],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();
 

fuzz/fuzz_targets/console.rs

@@ -132,6 +132,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
             mem: guest_memory,
             interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
             queues: vec![(0, input_queue, input_evt), (1, output_queue, output_evt)],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .unwrap();
 

fuzz/fuzz_targets/iommu.rs

@@ -114,6 +114,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
                 (0, request_queue, request_evt),
                 (0, _event_queue, _event_evt),
             ],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();
 

fuzz/fuzz_targets/mem.rs

@@ -109,6 +109,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
             mem: guest_memory,
             interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
             queues: vec![(0, q, evt)],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();
 

fuzz/fuzz_targets/net.rs

@@ -147,6 +147,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
         mem: guest_memory,
         interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
         queues: vec![(0, input_queue, input_evt), (1, output_queue, output_evt)],
+        device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
     })
     .unwrap();
 

fuzz/fuzz_targets/pmem.rs

@@ -65,6 +65,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
         mem: guest_memory,
         interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
         queues: vec![(0, q, evt)],
+        device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
     })
     .ok();
 

fuzz/fuzz_targets/rng.rs

@@ -103,6 +103,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
         mem: guest_memory,
         interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
         queues: vec![(0, q, evt)],
+        device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
     })
     .ok();
 

fuzz/fuzz_targets/vsock.rs

@@ -112,6 +112,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
             mem: guest_memory,
             interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
             queues: vec![(0, q, evt)],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();
 

fuzz/fuzz_targets/watchdog.rs

@@ -68,6 +68,7 @@ fuzz_target!(|bytes: &[u8]| -> Corpus {
             mem: guest_memory,
             interrupt_cb: Arc::new(NoopVirtioInterrupt {}),
             queues: vec![(0, q, evt)],
+            device_status: Arc::new(std::sync::atomic::AtomicU8::new(0)),
         })
         .ok();