diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2010-03-17 13:08:05 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-04-01 13:56:43 -0500 |
| commit | 3e607cb503acbd8606e5d42e6b80adcf1ccf9a92 (patch) | |
| tree | d807a3e205951a642cfbc913367959ad3abdb6f8 | |
| parent | 1cbdabe203164433fbbec3a1815d8be42a085c88 (diff) | |
virtio: add set_status callback
vhost net backend needs to be notified when
frontend status changes. Add a callback,
similar to set_features.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/s390-virtio-bus.c | 2 | ||||
| -rw-r--r-- | hw/syborg_virtio.c | 2 | ||||
| -rw-r--r-- | hw/virtio-pci.c | 5 | ||||
| -rw-r--r-- | hw/virtio.h | 9 |
4 files changed, 14 insertions, 4 deletions
diff --git a/hw/s390-virtio-bus.c b/hw/s390-virtio-bus.c index 9fc01e941e..3efbaabb66 100644 --- a/hw/s390-virtio-bus.c +++ b/hw/s390-virtio-bus.c @@ -242,7 +242,7 @@ void s390_virtio_device_update_status(VirtIOS390Device *dev) VirtIODevice *vdev = dev->vdev; uint32_t features; - vdev->status = ldub_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS); + virtio_set_status(vdev, ldub_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS)); /* Update guest supported feature bitmap */ diff --git a/hw/syborg_virtio.c b/hw/syborg_virtio.c index 65239a0572..abf0370107 100644 --- a/hw/syborg_virtio.c +++ b/hw/syborg_virtio.c @@ -149,7 +149,7 @@ static void syborg_virtio_writel(void *opaque, target_phys_addr_t offset, virtio_queue_notify(vdev, value); break; case SYBORG_VIRTIO_STATUS: - vdev->status = value & 0xFF; + virtio_set_status(vdev, value & 0xFF); if (vdev->status == 0) virtio_reset(vdev); break; diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c index e23ab91992..a8b15bd464 100644 --- a/hw/virtio-pci.c +++ b/hw/virtio-pci.c @@ -219,7 +219,7 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) virtio_queue_notify(vdev, val); break; case VIRTIO_PCI_STATUS: - vdev->status = val & 0xFF; + virtio_set_status(vdev, val & 0xFF); if (vdev->status == 0) { virtio_reset(proxy->vdev); msix_unuse_all_vectors(&proxy->pci_dev); @@ -399,7 +399,8 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, if (PCI_COMMAND == address) { if (!(val & PCI_COMMAND_MASTER)) { if (!(proxy->bugs & VIRTIO_PCI_BUG_BUS_MASTER)) { - proxy->vdev->status &= ~VIRTIO_CONFIG_S_DRIVER_OK; + virtio_set_status(proxy->vdev, + proxy->vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); } } } diff --git a/hw/virtio.h b/hw/virtio.h index d0155e2761..d3eb714cca 100644 --- a/hw/virtio.h +++ b/hw/virtio.h @@ -115,12 +115,21 @@ struct VirtIODevice void (*get_config)(VirtIODevice *vdev, uint8_t *config); void (*set_config)(VirtIODevice *vdev, const uint8_t *config); void (*reset)(VirtIODevice *vdev); + void (*set_status)(VirtIODevice *vdev, uint8_t val); VirtQueue *vq; const VirtIOBindings *binding; void *binding_opaque; uint16_t device_id; }; +static inline void virtio_set_status(VirtIODevice *vdev, uint8_t val) +{ + if (vdev->set_status) { + vdev->set_status(vdev, val); + } + vdev->status = val; +} + VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, void (*handle_output)(VirtIODevice *, VirtQueue *)); |