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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2015-06-04 12:34:11 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-06-10 18:15:04 +0200 |
| commit | 3c185597c86b8cd0a07c46e7a5bd5aac28bb7200 (patch) | |
| tree | 5a72cf952a60188058c1e195da2a13fd67e31553 /include/hw/virtio/virtio-access.h | |
| parent | 24bfa207efb9b9d591552eefc1f414ff33ef0eac (diff) | |
| download | focaccia-qemu-3c185597c86b8cd0a07c46e7a5bd5aac28bb7200.tar.gz focaccia-qemu-3c185597c86b8cd0a07c46e7a5bd5aac28bb7200.zip | |
virtio: endianness checks for virtio 1.0 devices
Add code that checks for the VERSION_1 feature bit in order to make decisions about the device's endianness. This allows us to support transitional devices. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/virtio/virtio-access.h')
| -rw-r--r-- | include/hw/virtio/virtio-access.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h index 46456fd9da..ee28c21fef 100644 --- a/include/hw/virtio/virtio-access.h +++ b/include/hw/virtio/virtio-access.h @@ -19,6 +19,10 @@ static inline bool virtio_access_is_big_endian(VirtIODevice *vdev) { + if (virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { + /* Devices conforming to VIRTIO 1.0 or later are always LE. */ + return false; + } #if defined(TARGET_IS_BIENDIAN) return virtio_is_big_endian(vdev); #elif defined(TARGET_WORDS_BIGENDIAN) |