From: Leo Yan Date: Thu, 4 Jan 2024 21:09:42 +0000 (+0000) Subject: hw/virtio: Support set_config() callback in vhost-user-base X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a26105dd56a11d5aec618fc5429ae7932d3221c5;p=qemu.git hw/virtio: Support set_config() callback in vhost-user-base The Virtio input device invokes set_config() callback for retrieving the event configuration info, but the callback is not supported in vhost-user-base. This patch adds support set_config() callback in vhost-user-base. Signed-off-by: Leo Yan Reviewed-by: Marc-André Lureau Message-Id: <20231120043721.50555-2-leo.yan@linaro.org> Signed-off-by: Alex Bennée Message-Id: <20240104210945.1223134-9-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- diff --git a/hw/virtio/vhost-user-base.c b/hw/virtio/vhost-user-base.c index 78cfa9a5bb..a83167191e 100644 --- a/hw/virtio/vhost-user-base.c +++ b/hw/virtio/vhost-user-base.c @@ -140,6 +140,22 @@ static void vub_get_config(VirtIODevice *vdev, uint8_t *config) } } +static void vub_set_config(VirtIODevice *vdev, const uint8_t *config_data) +{ + VHostUserBase *vub = VHOST_USER_BASE(vdev); + int ret; + + g_assert(vub->config_size && vub->vhost_user.supports_config == true); + + ret = vhost_dev_set_config(&vub->vhost_dev, config_data, + 0, vub->config_size, + VHOST_SET_CONFIG_TYPE_FRONTEND); + if (ret) { + error_report("vhost guest set device config space failed: %d", ret); + return; + } +} + /* * When the daemon signals an update to the config we just need to * signal the guest as we re-read the config on demand above. @@ -337,6 +353,7 @@ static void vub_class_init(ObjectClass *klass, void *data) vdc->unrealize = vub_device_unrealize; vdc->get_features = vub_get_features; vdc->get_config = vub_get_config; + vdc->set_config = vub_set_config; vdc->set_status = vub_set_status; }