RFR: JDK-8301050: Detect Xen Virtualization on Linux aarch64 [v2]

[Matthias Baesken]

On Wed, 1 Feb 2023 13:09:19 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> With https://bugs.openjdk.org/browse/JDK-8300266 KVM and VMWare virtualization detection has been added; this should be enhanced by Xen detection.
>> However it seems that for Xen we should look at other file system locations compared to the other virtualizations.
>> more /sys/hypervisor/type
>> xen
>> seems to be available there.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Do not scan the product_name file twice

Hi Christoph/David , I adjusted the file reading so that iteration of  /sys/devices/virtual/dmi/id/product_name is done once now, not twice. Should be more efficient.

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PR: https://git.openjdk.org/jdk/pull/12217