Rusty Russell wrote:

(Andrew, please sit these in the -mm tree for cooking)

Create a paravirt.h header for (almost) all the critical operations
which need to be replaced with hypervisor calls.

For the moment, this simply includes no_paravirt.h, where all the
native implementations now live.
  

Sorry, but I have to say these are not yet ready for -mm.  While they're 
better than before (I can successfully boot), the machine locks up when 
I start X, and I wouldn't have any confidence in running with this stuff 
enabled.  I'd prefer these weren't in -mm until we somewhat confident 
one could run with CONFIG_PARAVIRT on all the time (ie, think it could 
be default on, even if it isn't).

    J