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| author | Michael S. Tsirkin <mst@redhat.com> | 2009-06-21 19:50:13 +0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-06-24 09:09:14 -0500 |
| commit | 7055e687cd4cea5befefb2d8012e4e2574cfa9b3 (patch) | |
| tree | d5827b1fae3a5f3523d2c024443b19e10c57ade1 /hw/syborg_virtio.c | |
| parent | 54c96da798141feadd1424ef43fba19757e50d39 (diff) | |
| download | qemu-7055e687cd4cea5befefb2d8012e4e2574cfa9b3.tar.gz qemu-7055e687cd4cea5befefb2d8012e4e2574cfa9b3.tar.bz2 qemu-7055e687cd4cea5befefb2d8012e4e2574cfa9b3.zip | |
qemu/virtio: virtio support for many interrupt vectors
Extend virtio to support many interrupt vectors, and rearrange code in
preparation for multi-vector support (mostly move reset out to bindings,
because we will have to reset the vectors in transport-specific code).
Actual bindings in pci, and use in net, to follow.
Load and save are not connected to bindings yet, so they are left
stubbed out for now.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/syborg_virtio.c')
| -rw-r--r-- | hw/syborg_virtio.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/hw/syborg_virtio.c b/hw/syborg_virtio.c index 8e665c6f25..108af06e8c 100644 --- a/hw/syborg_virtio.c +++ b/hw/syborg_virtio.c @@ -134,7 +134,10 @@ static void syborg_virtio_writel(void *opaque, target_phys_addr_t offset, vdev->features = value; break; case SYBORG_VIRTIO_QUEUE_BASE: - virtio_queue_set_addr(vdev, vdev->queue_sel, value); + if (value == 0) + virtio_reset(vdev); + else + virtio_queue_set_addr(vdev, vdev->queue_sel, value); break; case SYBORG_VIRTIO_QUEUE_SEL: if (value < VIRTIO_PCI_QUEUE_MAX) @@ -228,7 +231,7 @@ static CPUWriteMemoryFunc *syborg_virtio_writefn[] = { syborg_virtio_writel }; -static void syborg_virtio_update_irq(void *opaque) +static void syborg_virtio_update_irq(void *opaque, uint16_t vector) { SyborgVirtIOProxy *proxy = opaque; int level; @@ -239,7 +242,7 @@ static void syborg_virtio_update_irq(void *opaque) } static VirtIOBindings syborg_virtio_bindings = { - .update_irq = syborg_virtio_update_irq + .notify = syborg_virtio_update_irq }; static void syborg_virtio_init(SyborgVirtIOProxy *proxy, VirtIODevice *vdev) @@ -248,6 +251,8 @@ static void syborg_virtio_init(SyborgVirtIOProxy *proxy, VirtIODevice *vdev) proxy->vdev = vdev; + /* Don't support multiple vectors */ + proxy->vdev->nvectors = 0; sysbus_init_irq(&proxy->busdev, &proxy->irq); iomemtype = cpu_register_io_memory(syborg_virtio_readfn, syborg_virtio_writefn, proxy); @@ -255,6 +260,8 @@ static void syborg_virtio_init(SyborgVirtIOProxy *proxy, VirtIODevice *vdev) proxy->id = ((uint32_t)0x1af4 << 16) | vdev->device_id; + qemu_register_reset(virtio_reset, 0, vdev); + virtio_bind_device(vdev, &syborg_virtio_bindings, proxy); } |