I've just noticed that on a SPARC host, some of the PPC guests
warn during make check:

  /ppc64/prom-env/pseries:
qemu-system-ppc64: System page size 0x2000 is not enabled in
page_size_mask (0x11000). Performance may be slow

Is this really a performance problem on a TCG guest?
It makes the 'make check' output a bit noisy, but not
unbearably so.

thanks
-- PMM

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