Re: [Xen-devel] [PATCH] Fix restore handling checks

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Michal Novotny writes ("Re: [Xen-devel] [PATCH] Fix restore handling checks"):
> Right, there's the exception for CD-ROMs according to the spec. I should 
> implement this as well but read-only IDE disk devices are not supported 
> according to the IDE specs.

I don't think this is a very good argument for not supporting them.

The Xen administrator should be able to present a guest with an IDE
disk and nevertheless prevent the guest from writing to it.

If that means that the guest administrator needs to be told
out-of-band that writes will not work, rather than having their kernel
automatically discover the read-only nature, then that's fine.  And if
the guest administrator doesn't do that and their kernel tries to
write and gets IDE errors then that is the correct consequence.

Ian.

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