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virtio: zero-out virtqueue structures at init

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They used to be allocated with spdk_dma_zmalloc() which did
provide zeroed memory, but we unintentionally changed that
when switching to posix_memalign.

The structure might have some unitialized memory, so with
this patch we just memset it right after allocating it.

Change-Id: Id5a5685e09419901513925abaeed605c36f5199a
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/451546
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Darek Stojaczyk 2019-04-19 03:40:39 +02:00 committed by Jim Harris
parent fc45844cf5
commit 12f622b769
1 changed files with 1 additions and 0 deletions
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lib/virtio/virtio.c
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@ -145,6 +145,7 @@ virtio_init_queue(struct virtio_dev *dev, uint16_t vtpci_queue_idx)
SPDK_ERRLOG("can not allocate vq\n");
return -ENOMEM;
}
memset(vq, 0, size);
dev->vqs[vtpci_queue_idx] = vq;
vq->vdev = dev;