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vhost: allocate event_idx fields on vring 

There was not enough room to accomodate them.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-10-20 17:52:48 +02:00 committed by Jason Wang
parent 7d0e12af59
commit f0c48e05bd
1 changed files with 4 additions and 4 deletions
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8
hw/virtio/vhost-shadow-virtqueue.c
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@ -570,16 +570,16 @@ void vhost_svq_get_vring_addr(const VhostShadowVirtqueue *svq,
size_t vhost_svq_driver_area_size(const VhostShadowVirtqueue *svq) size_t vhost_svq_driver_area_size(const VhostShadowVirtqueue *svq)
{ {
size_t desc_size = sizeof(vring_desc_t) * svq->vring.num; size_t desc_size = sizeof(vring_desc_t) * svq->vring.num;
size_t avail_size = offsetof(vring_avail_t, ring) + size_t avail_size = offsetof(vring_avail_t, ring[svq->vring.num]) +
sizeof(uint16_t) * svq->vring.num; sizeof(uint16_t);
return ROUND_UP(desc_size + avail_size, qemu_real_host_page_size()); return ROUND_UP(desc_size + avail_size, qemu_real_host_page_size());
} }
size_t vhost_svq_device_area_size(const VhostShadowVirtqueue *svq) size_t vhost_svq_device_area_size(const VhostShadowVirtqueue *svq)
{ {
size_t used_size = offsetof(vring_used_t, ring) + size_t used_size = offsetof(vring_used_t, ring[svq->vring.num]) +
sizeof(vring_used_elem_t) * svq->vring.num; sizeof(uint16_t);
return ROUND_UP(used_size, qemu_real_host_page_size()); return ROUND_UP(used_size, qemu_real_host_page_size());
} }