[Libre-soc-bugs] [Bug 655] New: Support linux running on systems with both Libre-SOC and non-Libre-SOC cpus, or cpus with different feature sets

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=655

            Bug ID: 655
           Summary: Support linux running on systems with both Libre-SOC
                    and non-Libre-SOC cpus, or cpus with different feature
                    sets
           Product: Libre-SOC's first SoC
           Version: unspecified
          Hardware: Other
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: Source Code
          Assignee: lkcl at lkcl.net
          Reporter: programmerjake at gmail.com
                CC: libre-soc-bugs at lists.libre-soc.org
   NLnet milestone: ---

Look at how Linux is handling a similar thing for Arm64 where just some of the
cpus support 32-bit:

https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.14-ARM64

https://lore.kernel.org/patchwork/patch/1436130/

Find callers of system_32bit_el0_cpumask in the kernel and use that as
inspiration to do something similar

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