Re: [Xen-devel] Re: Next steps with pv_ops for Xen

[Gerd Hoffmann <kraxel@xxxxxxxxxx>]

  Hi,

> gntdev doesn't even try to handle forking.  I wouldn't be surprised if
> that is a great way to kill Domain-0.  The xen hypervisor will most
> likely not be amused to find a pte refering to a granted (but foreign)
> page which wasn't established using the grant table interface.  Pinning
> the pgd of the child process will most likely fail and make the kernel
> BUG().

Ok, isn't that bad thanks to the VM_DONTCOPY.  The child just doesn't
get the grant mapping.

cheers,
  Gerd


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