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| author | Michael S. Tsirkin <mst@redhat.com> | 2014-12-25 15:03:27 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-12-29 09:54:54 +0100 |
| commit | b28e0506fafd9c987bba7a6a71ea02a37fcabdea (patch) | |
| tree | d106164f315a92e8894454fdf93226bff5f53d3e /drivers/vhost | |
| parent | Linux 3.19-rc2 (diff) | |
| download | linux-b28e0506fafd9c987bba7a6a71ea02a37fcabdea.tar.xz linux-b28e0506fafd9c987bba7a6a71ea02a37fcabdea.zip | |
virtio_ring: document alignment requirements
Host needs to know vring element alignment requirements:
simply doing alignof on structures doesn't work reliably: on some
platforms gcc has alignof(uint32_t) == 2.
Add macros for alignment as specified in virtio 1.0 cs01,
export them to userspace as well.
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
0 files changed, 0 insertions, 0 deletions