diff options
author | Gal Hammer <ghammer@redhat.com> | 2018-01-29 16:20:57 +0200 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2018-02-08 21:06:40 +0200 |
commit | 710fccf80d787911120145f508f9c4c664cf0e03 (patch) | |
tree | 6e9b6a0a77c994bf2480814f8cf123b37d47a544 /include/hw/virtio/vhost.h | |
parent | 76143618a5a9f33e8bc968f27b3de79d79a286c5 (diff) |
virtio: improve virtio devices initialization time
The loading time of a VM is quite significant when its virtio
devices use a large amount of virt-queues (e.g. a virtio-serial
device with max_ports=511). Most of the time is spend in the
creation of all the required event notifiers (ioeventfd and memory
regions).
This patch pack all the changes to the memory regions in a
single memory transaction.
Reported-by: Sitong Liu
Reported-by: Xiaoling Gao
Signed-off-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Diffstat (limited to 'include/hw/virtio/vhost.h')
0 files changed, 0 insertions, 0 deletions