Re: [Xen-devel] [PATCH 08 of 27 v2] libxl: do not read f.e. xenstore dir in disk list function

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Campbell writes ("[Xen-devel] [PATCH 08 of 27 v2] libxl: do not read f.e. 
xenstore dir in disk list function"):
> libxl: do not read f.e. xenstore dir in disk list function
> 
> Instead store a duplicate of the "device-type" node in the backend dir
> and use that instead.
> 
> This maintains the invariant that the list function is always "safe".
> 
> XXX I'm not sure this is an actual issue. The entries in the frontend device
> XXX area are writeable by the guest but maybe the solution is to
> restrict that ?

No, I don't think so.  The frontend directory is precisely where the
frontend writes things that it wants the backend to be able to read
but the backend shouldn't rely on it for its own operation.

Ian.

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