RFR: 8329031: CPUID feature detection for Advanced Performance Extensions (Intel® APX) [v2]

[Jatin Bhateja]

On Thu, 6 Jun 2024 19:41:25 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> Actually we can't even fully test it until VM start using all registers provided by APX.

Hi @vnkozlov , EGPR state restoration across signal handling can only be validated after OS support, CPUID and UseAPX validation has been done using [Intel® Software Development Emulator](https://www.intel.com/content/www/us/en/download/684897/intel-software-development-emulator.html), other comments addressed.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/18562#issuecomment-2153731083