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hw/virtio: move vm_running check to virtio_device_started

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All the boilerplate virtio code does the same thing (or should at
least) of checking to see if the VM is running before attempting to
start VirtIO. Push the logic up to the common function to avoid
getting a copy and paste wrong.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220802095010.3330793-11-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Alex Bennée 2022-08-02 10:49:58 +01:00 • committed by Michael S. Tsirkin
parent a276123119
commit 9f6bcfd99f
6 changed files with 10 additions and 25 deletions
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5
include/hw/virtio/virtio.h
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@ -100,6 +100,7 @@ struct VirtIODevice
VirtQueue *vq;
MemoryListener listener;
uint16_t device_id;
/* @vm_running: current VM running state via virtio_vmstate_change() */
bool vm_running;
bool broken; /* device in invalid state, needs reset */
bool use_disabled_flag; /* allow use of 'disable' flag when needed */
@ -376,6 +377,10 @@ static inline bool virtio_device_started(VirtIODevice *vdev, uint8_t status)
return vdev->started;
}
if (!vdev->vm_running) {
return false;
}
return status & VIRTIO_CONFIG_S_DRIVER_OK;
}