powerpc: Update page-in counter for CMM
A new field has been added to the VPA as a method for the client OS to communicate to firmware the number of page-ins it is performing when running collaborative memory overcommit. The hypervisor will use this information to better determine if a partition is experiencing memory pressure and needs more memory allocated to it. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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