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  1. JDK
  2. JDK-8212481

PPC64: Enable POWER9 CPU detection

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    • Subcomponent:
    • Resolved In Build:
      b18
    • CPU:
      ppc
    • OS:
      linux, aix

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        Description

        Currently PPC64 JVM is not able to detect POWER9 CPUs. By adding support for POWER9-specific instructions it's possible to detect when JVM is running on POWER9 CPUs, allowing to set POWER9-specific features on the JVM.

        In that sense 'darn' instruction introduced with Power 9 can be used to detect POWER9 CPUs. For instance, 'darn' instruction can't be disable on OS level.

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                Assignee:
                gromero Gustavo Romero
                Reporter:
                gromero Gustavo Romero
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                  Updated:
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