Re: [Xen-devel] [PATCH for-4.7] Revert "libxl: No emulated disk driver for xvdX disk"

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Wei Liu writes ("[PATCH for-4.7] Revert "libxl: No emulated disk driver for 
xvdX disk""):
> This reverts c0c099d157cc5bc942afef766cf141628a6380a1.
> 
> That commit causes regression on the semantics of our diskspec.
> See [0] for more information.
> 
> [0] http://lists.xen.org/archives/html/xen-devel/2016-05/msg02876.html
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> Please review carefully about this patch. There are one commit that is
> of interest: ef6cb76026628e26e3d1ae53c50ccde1c3c78b1b
> 
> I believe the reverting the snippet in question won't cause security
> issue as described in XSA-142, because the code to create IDE disk still
> checks if the disk is read-only.

Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

I think this is the right answer for 4.7.  In 4.8 we should do
something like one of the proposals being discussed in this thread.

Thanks,
Ian.

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