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| author | Michael S. Tsirkin <mst@redhat.com> | 2010-01-10 13:52:53 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-01-11 13:40:59 -0600 |
| commit | 8172539d21a03e982aa7f139ddc1607dc1422045 (patch) | |
| tree | 67ceb2ca2ea245060d9285623e26e3a42b3cdc1a /hw/virtio-blk.h | |
| parent | 704a76fcd24372a683652651b4597f6654084975 (diff) | |
| download | qemu-8172539d21a03e982aa7f139ddc1607dc1422045.tar.gz qemu-8172539d21a03e982aa7f139ddc1607dc1422045.tar.bz2 qemu-8172539d21a03e982aa7f139ddc1607dc1422045.zip | |
virtio: add features as qdev properties
Add feature bits as properties to virtio. This makes it possible to e.g. define
machine without indirect buffer support, which is required for 0.10
compatibility, or without hardware checksum support, which is required for 0.11
compatibility. Since default values for optional features are now set by qdev,
get_features callback has been modified: it sets non-optional bits, and clears
bits not supported by host.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-blk.h')
| -rw-r--r-- | hw/virtio-blk.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h index 23ad74caec..c28f776c2e 100644 --- a/hw/virtio-blk.h +++ b/hw/virtio-blk.h @@ -92,4 +92,12 @@ struct virtio_scsi_inhdr uint32_t residual; }; +#ifdef __linux__ +#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \ + DEFINE_VIRTIO_COMMON_FEATURES(_state, _field), \ + DEFINE_PROP_BIT("scsi", _state, _field, VIRTIO_BLK_F_SCSI, true) +#else +#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \ + DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) +#endif #endif |