macOS 11.0 now supports the AArch64 architecture. This JEP implements support for the macos-aarch64 platform in the JDK.
One of the features added is support for the W^X (write xor execute) memory. It is enabled only for macos-aarch64 and can be extended to other platforms at some point.
The JDK can be either cross-compiled on an Intel machine or compiled on an Apple M1-based machine.

For further details, see [JEP 391](https://openjdk.java.net/jeps/391).