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  1. JDK
  2. JDK-8212481

PPC64: Enable POWER9 CPU detection

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    • b18
    • ppc
    • linux, aix

    Backports

      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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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8216523 PPC64: Enable POWER9 CPU detection

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

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                gromero Gustavo Romero
                gromero Gustavo Romero
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                  Updated:
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