@@ -634,6 +634,7 @@ static void virtio_balloon_get_config(VirtIODevice *vdev, uint8_t *config_data)
config.num_pages = cpu_to_le32(dev->num_pages);
config.actual = cpu_to_le32(dev->actual);
+ config.poison_val = cpu_to_le32(dev->poison_val);
if (dev->free_page_hint_status == FREE_PAGE_HINT_S_REQUESTED) {
config.free_page_hint_cmd_id =
@@ -697,6 +698,10 @@ static void virtio_balloon_set_config(VirtIODevice *vdev,
qapi_event_send_balloon_change(vm_ram_size -
((ram_addr_t) dev->actual << VIRTIO_BALLOON_PFN_SHIFT));
}
+ dev->poison_val = 0;
+ if (virtio_vdev_has_feature(vdev, VIRTIO_BALLOON_F_PAGE_POISON)) {
+ dev->poison_val = le32_to_cpu(config.poison_val);
+ }
trace_virtio_balloon_set_config(dev->actual, oldactual);
}
@@ -854,6 +859,8 @@ static void virtio_balloon_device_reset(VirtIODevice *vdev)
g_free(s->stats_vq_elem);
s->stats_vq_elem = NULL;
}
+
+ s->poison_val = 0;
}
static void virtio_balloon_set_status(VirtIODevice *vdev, uint8_t status)
@@ -70,6 +70,7 @@ typedef struct VirtIOBalloon {
uint32_t host_features;
bool qemu_4_0_config_size;
+ uint32_t poison_val;
} VirtIOBalloon;
#endif