Merge branch 'pin' of https://github.com/jgross1/xen into staging

* 'pin' of https://github.com/jgross1/xen:
  libxl: add force option for xl vcpu-pin
  libxl: print message how to recover from xl cpupool-cpu-remove errors
  libxc: do some retries in xc_cpupool_removecpu() for EBUSY case

All patches have Acked-by and Reviewed-by tags.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --cc tools/libxl/libxl.c
Simple merge

diff --cc tools/libxl/xl_cmdimpl.c
Simple merge