Re: [PATCH v4 2/2] Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8

2014-07-18 Thread Paul Mackerras
On Fri, Jul 18, 2014 at 02:18:43PM +1000, Stewart Smith wrote: The POWER8 processor has a Micro Partition Prefetch Engine, which is a fancy way of saying has way to store and load contents of L2 or L2+MRU way of L3 cache. We initiate the storing of the log (list of addresses) using the logmpp

[PATCH v4 2/2] Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8

2014-07-17 Thread Stewart Smith
The POWER8 processor has a Micro Partition Prefetch Engine, which is a fancy way of saying has way to store and load contents of L2 or L2+MRU way of L3 cache. We initiate the storing of the log (list of addresses) using the logmpp instruction and start restore by writing to a SPR. The logmpp