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| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2015-10-09 17:17:22 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-10-22 14:34:49 +0300 |
| commit | 636f4dddfe48ccabaf5198bba440354d6a268d62 (patch) | |
| tree | a72503e5b9960c5aaf5fdc7b4f6dc047c7bf5d59 /hw | |
| parent | 35f9b6ef3acc9d0546c395a566b04e63ca84e302 (diff) | |
| download | qemu-636f4dddfe48ccabaf5198bba440354d6a268d62.tar.gz qemu-636f4dddfe48ccabaf5198bba440354d6a268d62.tar.bz2 qemu-636f4dddfe48ccabaf5198bba440354d6a268d62.zip | |
vhost: document log resizing
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/virtio/vhost.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index f14a5c5133..f5ecaf0d02 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -350,6 +350,8 @@ static inline void vhost_dev_log_resize(struct vhost_dev* dev, uint64_t size) uint64_t log_base = (uintptr_t)log->log; int r; + /* inform backend of log switching, this must be done before + releasing the current log, to ensure no logging is lost */ r = dev->vhost_ops->vhost_call(dev, VHOST_SET_LOG_BASE, &log_base); assert(r >= 0); vhost_log_put(dev, true); |