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Re: [Qemu-devel] [PATCH for-4.0 0/6] vhost-user-blk: Add support for bac

From: Yongji Xie
Subject: Re: [Qemu-devel] [PATCH for-4.0 0/6] vhost-user-blk: Add support for backend reconnecting
Date: Thu, 6 Dec 2018 17:41:52 +0800

On Thu, 6 Dec 2018 at 17:21, Yury Kotov <address@hidden> wrote:
> Hi, it's very interesting patchset.
> I also research reconnecting issue for vhost-user-blk and SPDK.
> Did you support a case when vhost backend is not started but QEMU does?

Now we do not support this case. Because qemu have to get config from vhost-user
backend through VHOST_USER_GET_CONFIG when we initialize the
vhost-user-blk device.

If we delay getting config until we connect vhost-user backend, guest
driver may get incorrect
configuration? That's why I modify the "wait" option to support client mode.


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