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Re: [Qemu-devel] [PATCH] vhost-blk: turn on pre-defined RO feature bit
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] vhost-blk: turn on pre-defined RO feature bit |
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Date: |
Tue, 22 May 2018 14:11:20 +0100 |
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User-agent: |
Mutt/1.9.5 (2018-04-13) |
On Sat, May 19, 2018 at 06:20:16AM +0800, Changpeng Liu wrote:
> Read only feature shouldn't be negotiable, because if the
> backend device reported Read only feature supported, QEMU
> host driver shouldn't change backend's RO attribute.
I don't understand this patch.
Does it make *all* virtio-blk devices read-only?
Or is the idea that the vhost-user slave has to clear the read-only bit
if it is a writable device?
Stefan
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