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vhost-user-gpio: Configure vhost_dev when connecting 

vhost_dev_cleanup(), called from vu_gpio_disconnect(), clears vhost_dev
so vhost-user-gpio must set the members of vhost_dev each time
connecting.

do_vhost_user_cleanup() should also acquire the pointer to vqs directly
from VHostUserGPIO instead of referring to vhost_dev as it can be called
after vhost_dev_cleanup().

Fixes: 27ba7b027f ("hw/virtio: add boilerplate for vhost-user-gpio device")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230130140320.77999-1-akihiko.odaki@daynix.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Akihiko Odaki 2023-01-30 23:03:20 +09:00 committed by Michael S. Tsirkin
parent e1a0e635c9
commit daae36c13a
2 changed files with 7 additions and 5 deletions
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10
hw/virtio/vhost-user-gpio.c
View File

@ -16,6 +16,7 @@
#include "trace.h"
#define REALIZE_CONNECTION_RETRIES 3
#define VHOST_NVQS 2
/* Features required from VirtIO */
static const int feature_bits[] = {
@ -208,8 +209,7 @@ static void do_vhost_user_cleanup(VirtIODevice *vdev, VHostUserGPIO *gpio)
{
virtio_delete_queue(gpio->command_vq);
virtio_delete_queue(gpio->interrupt_vq);
g_free(gpio->vhost_dev.vqs);
gpio->vhost_dev.vqs = NULL;
g_free(gpio->vhost_vqs);
virtio_cleanup(vdev);
vhost_user_cleanup(&gpio->vhost_user);
}
@ -229,6 +229,9 @@ static int vu_gpio_connect(DeviceState *dev, Error **errp)
vhost_dev_set_config_notifier(vhost_dev, &gpio_ops);
gpio->vhost_user.supports_config = true;
gpio->vhost_dev.nvqs = VHOST_NVQS;
gpio->vhost_dev.vqs = gpio->vhost_vqs;
ret = vhost_dev_init(vhost_dev, &gpio->vhost_user,
VHOST_BACKEND_TYPE_USER, 0, errp);
if (ret < 0) {
@ -347,10 +350,9 @@ static void vu_gpio_device_realize(DeviceState *dev, Error **errp)
virtio_init(vdev, VIRTIO_ID_GPIO, sizeof(gpio->config));
gpio->vhost_dev.nvqs = 2;
gpio->command_vq = virtio_add_queue(vdev, 256, vu_gpio_handle_output);
gpio->interrupt_vq = virtio_add_queue(vdev, 256, vu_gpio_handle_output);
gpio->vhost_dev.vqs = g_new0(struct vhost_virtqueue, gpio->vhost_dev.nvqs);
gpio->vhost_vqs = g_new0(struct vhost_virtqueue, VHOST_NVQS);
gpio->connected = false;

2
include/hw/virtio/vhost-user-gpio.h
View File

@ -23,7 +23,7 @@ struct VHostUserGPIO {
VirtIODevice parent_obj;
CharBackend chardev;
struct virtio_gpio_config config;
struct vhost_virtqueue *vhost_vq;
struct vhost_virtqueue *vhost_vqs;
struct vhost_dev vhost_dev;
VhostUserState vhost_user;
VirtQueue *command_vq;