diff options
| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2011-01-25 16:17:14 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-01-31 10:03:00 +0100 |
| commit | d0dcac833a767dade968a07aba4d116f162ebc72 (patch) | |
| tree | 44424b95b63e18b1dc4bca9c40739664d959aa86 /docs | |
| parent | e5051fc70807750f7a4798d2d83e159793c466d3 (diff) | |
virtio-pci: Disable virtio-ioeventfd when !CONFIG_IOTHREAD
It is not possible to use virtio-ioeventfd when building without an I/O
thread. We rely on a signal to kick us out of vcpu execution. Timers
and AIO use SIGALRM and SIGUSR2 respectively. Unfortunately eventfd
does not support O_ASYNC (SIGIO) so eventfd cannot be used in a signal
driven manner.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions