Generic Platform Updates

Some generic platform updates are available in UEK 8. Updates include:

• Split-lock detection for operations on memory that spans two cache lines, such as misaligned memory access. See also https://docs.kernel.org/arch/x86/buslock.html

• Call depth tracking is implemented to improve performance in the Retbleed security vulnerability mitigation code.

• x86 CPU bringup is updated so that secondary CPU cores are booted in parallel to improve kernel boot times on high core count systems.

• 32-bit emulation on x86_64 kernels with the ia32_emulation command-line parameter. When set to true, you can load 32-bit programs and run 32-bit system calls.